Life In 19x19 :: Kirby's Study Journal

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Kirby's Study Journal http://lifein19x19.com/viewtopic.php?f=48&t=8493	Page 81 of 96

Author:	Kirby [ Mon Feb 03, 2020 12:16 pm ]
Post subject:	Re: Kirby's Study Journal
I've done Inseong's yunguseng program for awhile, so I decided to try out the online BIBA program. Today, I played my first game. Here it is: (;GM[1]FF[4]CA[UTF-8]AP[WebGoBoard:0.10.11]ST[2]RU[Japanese]SZ[19]KM[6.5]HA[0]TM[1800]OT[3x30 byo-yomi]RE[B+Resign]DT[2020-02-03]PB[seval]BR[1k]PW[Brian]PC[The KGS Go Server at http://www.gokgs.com/]C[This was my first game in the online BIBA league. I wanted to try it out. My first opponent was 1k. I believe that I had a lead right before the end - but then I misread something and my corner died. I am white.];B[pd]BL[1781.079];W[dp]WL[1794.965];B[pq]BL[1778.42];W[dc]WL[1791.402];B[fq]BL[1774.564];W[qo]WL[1787.146];B[op]BL[1770.728];W[cn]WL[1763.609];B[ql]BL[1733.83];W[eq]WL[1696.006];B[fp]BL[1729.045];W[ip]WL[1691.344];B[fn]BL[1715.57](;W[mq]WL[1667.845];B[pn]BL[1691.753](;W[qf]WL[1621.733];B[nc]BL[1654.496](;W[qd]WL[1559.264];B[qc]BL[1651.699];W[rc]WL[1556.433];B[qe]BL[1649.68];W[rd]WL[1554.748];B[re]BL[1641.654];W[pe]WL[1544.328];B[rf]BL[1639.803];W[pc]WL[1395.552];B[od]BL[1634.276];W[pb]WL[1394.692];B[qg]BL[1628.122]C[I think it's a nice result for black - lots of potential on the right. I think black is slightly ahead (haven't had this reviewed by human or AI, yet)](;W[dm]WL[1333.082];B[kq]BL[1600.322]C[This was a good move, exploiting my weakness. It makes it tough to attack white. ](;W[go]WL[1137.363]C[My thought is to avoid giving black good shape (see the variation)](;B[ep]BL[1541.947];W[dq]WL[1123.779];B[em]BL[1538.847];W[en]WL[1081.105];B[fo]BL[1532.032];W[fm]WL[1078.642];B[gn]BL[1514.337];W[el]WL[1075.763];B[jo]BL[1462.183]C[I figured "I'd manage" on the bottom, and that the ponnuki was worth it. But black's knight's move seems tough.](;W[jp]WL[1061.84];B[kp]BL[1446.013];W[ko]WL[1058.657];B[io]BL[1436.065];W[ho]WL[665.725];B[hn]BL[1415.851];W[jr]WL[663.941](;B[hq]BL[1382.99];W[hr]WL[650.133];B[hp]BL[1308.595];W[ir]WL[613.721];B[kr]BL[1214.275];W[lr]WL[342.182];B[ks]BL[1132.887];W[lp]WL[320.6];B[lo]BL[1088.456];W[kn]WL[317.871];B[lq]BL[1035.872];W[mp]WL[316.118];B[mr]BL[1032.066];W[nr]WL[303.509];B[ls]BL[1028.363];W[in]WL[235.551];B[gp]BL[1023.452];W[ho]WL[232.712];B[go]BL[1020.783];W[jn]WL[231.435];B[ho]BL[1018.643];W[fr]WL[211.7];B[gr]BL[1016.491];W[gs]WL[210.457](;B[gq]BL[1000.011];W[hs]WL[170.628]C[In the end, this wasn't a terrible result for me...];B[hl]BL[907.791];W[nq]WL[52.487];B[mo]BL[872.196];W[ns]WL[49.714];B[np]BL[858.072];W[js]WL[39.124];B[oq]BL[826.696];W[ms]WL[34.422];B[or]BL[816.456];W[lr]WL[33.171];B[rb]BL[794.949](;W[qb]WL[18.226];B[mr]BL[792.844];W[jk]WL[14.81];B[os]BL[771.666](;W[iq]WL[30]C[And I forgot I had to play here now. I felt so much in pain... ];B[hj]BL[740.79];W[ji]WL[30];B[hh]BL[726.834];W[ij]WL[30];B[im]BL[644.508];W[jl]WL[30];B[ll]BL[636.524];W[il]WL[30]C[I felt lucky in this exchange.];B[hk]BL[592.07];W[hi]WL[30];B[gi]BL[590.208];W[ii]WL[30];B[fj]BL[520.345];W[gh]WL[30];B[fh]BL[516.409];W[gg]WL[30];B[fg]BL[515.079];W[ff]WL[30];B[ef]BL[501.956];W[fe]WL[30];B[gf]BL[497.376];W[hg]WL[30];B[ee]BL[496.402];W[ed]WL[30];B[ce]BL[445.123];W[eg]WL[30];B[di]BL[279.502];W[eh]WL[30];B[fi]BL[270.868];W[de]WL[30];B[df]BL[265.185];W[cf]WL[30];B[dg]BL[249.302];W[dh]WL[30];B[cg]BL[241.893];W[ch]WL[30];B[dd]BL[233.557];W[ci]WL[30];B[ck]BL[198.338];W[bk]WL[30];B[bl]BL[164.71];W[dk]WL[30](;B[cj]BL[129.126];W[ei]WL[30];B[fk]BL[69.458];W[dj]WL[30]C[Suddenly, I felt like I had a chance.];B[fd]BL[35.226];W[ge]WL[30];B[hf]BL[33.142];W[ig]WL[30];B[if]BL[30];W[gd]WL[30];B[jg]BL[30];W[ih]WL[30];B[ec]BL[30];W[id]WL[30];B[hd]BL[30];W[gc]WL[30];B[hc]BL[30];W[he]WL[30];B[je]BL[30];W[hb]WL[30];B[li]BL[30];W[kh]WL[30];B[jc]BL[30];W[ic]WL[30];B[jb]BL[30]C[I felt a bit too relaxed here. But I think I have a good chance at this game, now.];W[jd]WL[30];B[kd]BL[30];W[kc]WL[30];B[ld]BL[30];W[lc]WL[30];B[mc]BL[30];W[ke]WL[30];B[lf]BL[30](;W[eb]WL[30];B[lh]BL[30]C[Black saved it](;W[lk]WL[30];B[kj]BL[30];W[kk]WL[30];B[mj]BL[30];W[ml]WL[30];B[mk]BL[30];W[mm]WL[30];B[lm]BL[30];W[ln]WL[30];B[mn]BL[30];W[km]WL[30];B[nl]BL[30];W[nm]WL[30];B[om]BL[30];W[kg]WL[30];B[kf]BL[30];W[lg]WL[30];B[mg]BL[30];W[kl]WL[30];B[db]BL[30];W[fb]WL[30];B[bj]BL[30];W[bm]WL[30];B[bh]BL[30];W[bi]WL[30];B[ai]BL[30];W[bg]WL[30];B[ah]BL[30];W[ak]WL[30];B[aj]BL[30];W[ib]WL[30];B[lb]BL[30];W[mf]WL[30];B[ng]BL[30]C[byo yomi];W[cl]WL[30];B[al]BL[30];W[am]WL[30];B[er]BL[30];W[fs]WL[30];B[cc]BL[30];W[bk]WL[30];B[bf]BL[30];W[ak]WL[30];B[ag]BL[30];W[ja]WL[30];B[kb]BL[30];W[nb]WL[30];B[mb]BL[30];W[na]WL[30];B[ma]BL[30];W[oc]WL[30];B[jq]BL[30];W[dr]WL[30];B[nn]BL[30];W[lj]WL[30];B[ki]BL[30](;W[jh]WL[30];B[mi]BL[30];W[jf]WL[30];B[es]BL[30];W[ds]WL[30];B[jg]BL[30];W[nk]WL[30];B[ol]BL[30];W[jf]WL[30];B[jj]BL[30];W[ik]WL[30];B[jg]BL[30];W[nd]WL[30];B[oe]BL[30];W[jf]WL[30];B[ej]BL[30];W[di]WL[30];B[jg]BL[30];W[af]WL[30];B[ae]BL[30];W[jf]WL[30];B[ek]BL[30];W[dl]WL[30];B[jg]BL[30];W[ne]WL[30];B[of]BL[30];W[jf]WL[30];B[sd]BL[30](;W[sc]WL[30];B[jg]BL[30];W[se]WL[30]C[bad threat - beginning of the end];B[jf]BL[30];W[rg]WL[30];B[pf]BL[30];W[sf]WL[30];B[rh]BL[30];W[sg]WL[30]C[Here's where I lost it. I misread this];B[sh]BL[30];W[sd]WL[30];B[sb]BL[30];W[qc]WL[30];B[oa]BL[30];W[ra]WL[30](;B[pa]BL[30]C[And then it was over])(;B[ob];W[pa]C[I read this, but this doesn't even work!];B[qa]C[Haha]))(;W[le];B[sc];W[md];B[qc];W[lc];B[qa];W[kc];B[pa];W[ob];B[oa]))(;W[nk];B[ol];W[mi];B[nj];W[ni];B[oj];W[jh];B[mh]))(;W[cc]C[This is pretty big, as long as I can still capture black in the center.];B[jm];W[km];B[hm];W[kl];B[lk];W[kj];B[ki];W[ik];B[kk];W[fl];B[lm];W[gk];B[gl];W[gm];B[ln];W[eo];B[gj];W[ek];B[jh];W[ej]C[Probably gonna be ok]))(;W[le];B[md];W[kf];B[kg];W[lg];B[me];W[mf];B[jf];W[lf];B[lh]C[I misread this - I thought I was caught in ladder ]))(;B[dj];W[cj];B[cl];W[bg];B[bf];W[bj];B[bh];W[bm];B[ak];W[dl];B[aj];W[cm];B[al];W[ai]))(;W[hj];B[iq];W[jq];B[er];W[es];B[fs]C[Terrible ]))(;W[jq]C[I think I can probably give up the corner. Why not? This is huge.];B[sc];W[jk]))(;B[er]C[Black could consider playing ko..];W[fs];B[hs];W[is];B[es];W[hs];B[jq]))(;B[kr]C[Imagined this...];W[hr];B[gr](;W[lp])(;W[lr];B[ks];W[lp](;B[lq])(;B[lo];W[kn];B[hp];W[lq]))))(;W[io](;B[in];W[jn];B[im];W[jp];B[ko];W[kp];B[lo];W[lq])(;B[jn];W[hm];B[hn];W[in];B[im];W[jm];B[il];W[jq];B[kp];W[kr];B[lr];W[ir];B[ks];W[jr];B[lq];W[gr];B[fr];W[gm]C[Maybe there's something...])))(;B[fo]C[What I imagined...];W[kp];B[jq];W[jp];B[iq];W[lq];B[hp];W[ho];B[gp];W[jn]C[Not great, but it's something. ]))(;W[kp]C[If I go here...];B[jq](;W[iq];B[jp];W[jo];B[lp];W[ko];B[lq]C[Seems bad for me - black has nice position on the right.])(;W[jp];B[iq];W[lq];B[hp];W[ho];B[go]C[I thought it'd turn out like this, hence the peep. So if I peep first, that last black stone is a white one, so it seemed better.];W[hq];B[gp];W[hr];B[ir];W[fr];B[gr])))(;W[mo]C[Maybe just be calm...?]))(;W[qi]C[Perhaps it's better to just keep things simple.];B[qe];W[pf];B[ce]C[I still think my extension on bottom is a bit wide. But this seems to be reasonable(?).]))(;W[qc]C[Considered this, too];B[qd];W[pc];B[od];W[nb]C[Not sure I like white. I dunno.])(;W[nc];B[pf];W[jd]C[Thought about this, too. I don't know which is better. The opening is hard.]))(;W[lq]C[Perhaps this is better. I thought the move in the game threatened more to bring my single stone out... But I don't think it's worth it to have the weak shape, especially if I plan to attack black on the left.])) I haven't had this reviewed or anything, yet. But I reviewed it myself in the SGF file. I believe that I could have won at the end, but I misread pretty badly in the top right. I'm a little dull with my reading, it seems. There are a couple of places where I could have profited more, and messed up badly.

Author: Kirby [ Mon Feb 03, 2020 12:21 pm ]

Post subject: Re: Kirby's Study Journal

Highlights

Position 1
Here, I think I extended too far:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . X . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . . . . . . W . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I was aiming toward the bottom right corner, but this move doesn't do much for that. And furthermore, the bigger problem is that it's very hard to attack black's stones if I am stretched thin like this - I'm subject to counter attack.

Because I aim to have the potential to attack later, I need to keep the surrounding groups strong.

Instead, I should do this (I think):

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . X . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . . . . . W . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Position 2
I think my choice here is questionable:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . X . . . . . | $$ | . . . , . . . . . , . . . . . X W . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . X . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . . . . . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Black has already invested in the bottom right corner - so to give good potential on the right side will only magnify this effect. I think the right side is big, so I can keep it simple:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . X . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . X . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . . . . . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I still don't like my bottom stones that much, but this seems reasonable - black's potential is not too big this way.

---

There are some other mistakes I point out in the SGF, but I think these are more like reading mistakes than conceptual mistakes - at least the stuff I recognize.

So the takeaways for this game are:
1. I need to be strong nearby if I aim to potentially attack a group later.
2. Play the bigger area (right side seems bigger than digging into the corner in that second position).

---

Let's see what they say in the review - I've never experienced a BIBA review, so it'll be interesting to compare to what I'm used to with Inseong.

Author:	Kirby [ Mon Feb 03, 2020 2:25 pm ]
Post subject:	Re: Kirby's Study Journal
Another thing that strikes me about this game... Let’s assume that I played correctly at the end, and that I won the game. Even after capturing that big group, it was a relatively close game. And it wasn’t at all clear that I’d capture the group early on. So it means that I put a lot of risk into this game by not taking much territory and making everything depend on me killing the group. Maybe that’s an exaggeration, but I think I need to think more territorially. It’s hard for me to play that way, though

Author:	Harleqin [ Tue Feb 04, 2020 3:29 pm ]
Post subject:	Re: Kirby's Study Journal
You didn't say anything about move 162 (M17). If I am not mistaken, it loses points in gote, when White could have just played in the centre, as the top group is safe.

Author:	Kirby [ Tue Feb 04, 2020 4:08 pm ]
Post subject:	Re: Kirby's Study Journal
I am aiming at L15 with that move, though, probably not the best idea since it loses points like you say.

Author: Kirby [ Sun Feb 09, 2020 2:23 pm ]

Post subject: Re: Kirby's Study Journal

I had my first BIBA review this morning. I took notes in the SGF file for the game, and included them here:

I learned a lot, but here are a couple of particularly interesting tidbits:

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . 2 . . 3 , . . . . X , . . . | $$ | . . . . 1 X . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I treat the sequence above almost as a combo. If I'm going to kick, I kick - they extend, then I play the two space high pincer. Just about every time.

Blackie noted that this is kind of old fashioned, because black's not in a hurry to jump out. Black can just play this:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . . . . B . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And then black has a nice shape - and I'm not really threatening the stones much. He prefers something like this for that reason:

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . 2 . . . , . . . . X , . . . | $$ | . . . . 1 X . . . 3 . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

If it's like this, black's strategy there isn't as effective:

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . 6 . . . . . . . . . . . . . | $$ | . . . . . 8 7 . . . . . . . . . O . . | $$ | . . . O . 2 . . . , . . . . X , . . . | $$ | . . . . 1 X . 5 . 3 . 4 . . . X . . . | $$ | . . . . 9 . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I can still attack black, I get more territory, and black's extension with :b4:

isn't as good as in the other variation.

Very interesting!

---

The other thing was, Blackie noted that it's pretty big to defend here:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . X . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . X . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . X . . O , . . . . X , . . . | $$ | . . . . O X . W . . . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

1.) It puts more pressure on black
2.) It helps to make black's invasion (as in the game) less relevant.

I don't often think of my own weaknesses - so I don't see this kind of move usually - it seems so slow to me.

But it's a nice shape and pressures black. So it must be a lot better. Blackie said it was quite big.

---

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O X . | $$ | . . . O . . . . . . . . . X . O . O . | $$ | . . . , . . . . . , . . . . X X O O . | $$ | . . . . . . . . . . . . . . . O X X . | $$ | . . . . . . . . . . . . . . . . O X . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . X . . . . . . . . . . . | $$ | . . . . . . . W . O . . . . . . . . . | $$ | . . . , . . . X W , . . . . . , . . . | $$ | . . . . . . . X . O . . . . . . . . . | $$ | . . . . O . . X O O . X . . . . X . . | $$ | . . . O . O . . X . . . . . . . . . . | $$ | . . O . O X X X O O O . . . . X . . . | $$ | . . . . . X X X X X O X X . . . O . . | $$ | . . . O X X X X O O X . . X X , . . . | $$ | . . . O O X X X O . X X . . X X . . . | $$ | . . . . . O X O O O X . X . X . . . . | $$ | . . . . . . O O . O X X . . X . . . . | $$ ---------------------------------------[/go]

All of these moves I'm making are bad exchanges. Blackie noted that I should just try to make good shape in the middle.

Looking back, why did I play these, psychologically?
- The reason is that I wanted to kill black. I figured I lost, so I needed to kill.

The problem is, it's very hard for me to kill black anyway. I did in the game, but I was really lucky...

So what can I take away from this?
- When I'm behind, I have to refrain from trying to catch back up immediately
- I need to think of my *own* weakness and bad shape - not just my opponent's!

---

There are some other goodies from the review (notably, the aji in the top left, which I hadn't noticed earlier). But these are some of the biggest takeaways I had. The pincer thing is good knowledge to know; I need to value "defense moves" a lot more than I do right now; and I need to pay attention to my own weaknesses and bad shape more than just my opponents.

If I simplify a majority of this content into one takeaway, I think it might be this: "don't be blind to my own weakness". I think I am already actively looking out for stuff I can do to my opponent. But I'm blind to what they can do to me!

Author:	Kirby [ Sun Feb 09, 2020 2:36 pm ]
Post subject:	Re: Kirby's Study Journal
So now I've experienced reviews in both the AYD and in online BIBA. I have a lot more experience with AYD, so I can't give a great comparison. But I can give my initial thoughts. I'll just list the "pros" of each, since they're both great programs. And the "pros" for one program are in a way the "cons" for the other. AYD Pros - Seems more organized than BIBA; better website, more organized structure for setting up games; better at communication with members - More affordable (less than half price) - Inseong is very good at pointing out the high level "game story" that you played. He can get to the main point and summarize it effectively - Inseong is good at determining a person's style. He gives more personalized and specific advice to you as a player, given your background. For example, he might give different advice to two players having played the same game, because he can tell that they need to work on different aspects of the game - The organized playing schedule is something I like. Since the schedule is a bit more casual in BIBA, it can be awkward/tough to get in touch with other players if they don't respond to you on facebook. With the AYD, you know when you're playing a particular person, unless they proactively reschedule. With BIBA, it's more like you have to proactively set the initial schedule. BIBA Pros - Reviews are more detailed. We went over a lot more variations than I'm used to in the AYD. The length of the review was around 45 minutes, compared to the typical 15~20 minutes for an AYD review. - Because it's less personal, perhaps the reviews are more objective (this may change, since I've only been in BIBA for a week) - Homework is cool - I like having assigned problems to do. I know I can do this myself regardless of the program, but somehow, I like a teacher picking out problems and correcting them for me - More opportunities to play pro - you only play Inseong occasionally, in unusual events (like if you missed a game due to your opponent not showing up or something) - The video review is kind of cool - you can see their expressions when you play a bad move, for example :-p --- While I wanted to give a quick summary here, please take this comparison with a grain of salt. I've only been in BIBA for a week, so I don't know if this is a fair comparison for either side. That being said, I wanted to document my initial thoughts, so that's why I'm posting this.

Author:	Kirby [ Sun Feb 09, 2020 3:01 pm ]
Post subject:	Re: Kirby's Study Journal
Forgot to mention... I translated another video by Choi Cheolhan 9d, if you’ve been following that: https://m.youtube.com/watch?v=j1w3oApp0dM This one has content from one of his own games.

Author:	Uberdude [ Sun Feb 09, 2020 4:10 pm ]
Post subject:	Re: Kirby's Study Journal
OMG, look at that borg cube with appendages!

Author:	Kirby [ Sun Feb 09, 2020 4:11 pm ]
Post subject:	Re: Kirby's Study Journal
Killed the borg, but still managed to lose the game

Author:	ez4u [ Sun Feb 09, 2020 4:30 pm ]
Post subject:	Re: Kirby's Study Journal
If Black connected 103 at G12 instead of F10, what would you have done?

Author:	Kirby [ Sun Feb 09, 2020 4:53 pm ]
Post subject:	Re: Kirby's Study Journal
ez4u wrote: If Black connected 103 at G12 instead of F10, what would you have done? Probably cut at G10 - though, I can't say I was thinking super far ahead at this point. The variation Blackie gave already shows that black can live somewhat comfortably without me killing, and then it's like I made a bunch of bad exchanges for nothing. But looking at it now, I'm not exactly sure what black does if the game goes like that and I cut at G10. Is there a follow up you had in mind?

Author:	ez4u [ Sun Feb 09, 2020 6:18 pm ]
Post subject:	Re: Kirby's Study Journal
Black H7 threatens to cut through White's center position. Black's stones even have enough liberties to atari the G10 cutting stone once before connecting, I think. So cutting does not look like it works. But then White cannot even bend around Black at the top.

Author:	Kirby [ Sun Feb 09, 2020 8:49 pm ]
Post subject:	Re: Kirby's Study Journal
You are right - I didn’t think about h7 being sente!

Author:	Gomoto [ Sun Feb 09, 2020 11:43 pm ]
Post subject:	Re: Kirby's Study Journal
Thank you for the english subtitles. Much appreciated.

Author:	Kirby [ Mon Feb 10, 2020 8:48 am ]
Post subject:	Re: Kirby's Study Journal
Gomoto wrote: Thank you for the english subtitles. Much appreciated. Sure thing! I have been enjoying it a lot, and I think my Korean has improved by doing it - I’ve been getting faster at it. I do have to admit, though, that when I’m doing subtitles, I’m not focusing much on remembering the variations, but rather on what he is saying. I’m surprised at how little I retain after doing the translation. To really get the material, I have to replay the video without having the intent to translate. Anyway, I’ve been enjoying it, so hopefully there are many more to come. It’s also kind of interesting to me personally, because I met Choi Cheolhan 9d awhile back in Korea - it was 2007, I think. I have a picture of us together, but I’m hesitant to spread it around since I was about 20 pounds heavier at that time. Anyway, glad that you like the videos.

Author:	Kirby [ Thu Feb 13, 2020 12:23 pm ]
Post subject:	Re: Kirby's Study Journal
Second BIBA game was today. I haven't been having a regular routine, since that's changing up next month anyway. So I haven't been studying a lot, except for the problems that I get from BIBA - I always do those. Last week, I did problems and they seemed pretty simple. So Diana gave me some harder ones - 12 of them. I thought they were harder, but I did them in 40 minutes, and got them all correct. She said that it was good to get them correct, but I should aim to get the 12 problems done in 24 minutes - 2 minutes a problem. It's a good idea. I've done a lot of go problems in my day (I like that form of study), but I very, very rarely time myself. I think it's a good idea to have the time pressure. The only time I've really done this is with Lee Hajin's app, Baduk Pop, which forces a timer. I should time myself more often. Anyway, here is the game: (;GM[1]FF[4]CA[UTF-8]AP[WebGoBoard:0.10.11]ST[2]RU[Japanese]SZ[19]KM[6.5]HA[0]TM[3600]OT[3x30 byo-yomi]RE[W+18.50]DT[2020-02-13]PB[genewong]BR[4d]PW[Brian]PC[The KGS Go Server at http://www.gokgs.com/]C[Brian [-]: have a good game genewong [4d?]: hi have a nice game --- I was white in this game.];B[qd]BL[3584.608];W[dd]WL[3595.995];B[pq]BL[3579.018];W[oc]WL[3587.896];B[pc]BL[3558.397];W[od]WL[3582.862];B[qf]BL[3550.691];W[kc]WL[3578.881]C[From what I heard from Ryan on one of his streams, black's choice here is useful if sente is important. Otherwise, white gets more than black. From this perspective, I suppose I get a bit of profit.];B[cp]BL[3546.461]C[The third corner is also big. But I prevented black from doing a special opening, so I feel OK about this.](;W[eq]WL[3552.537];B[dq]BL[3542.906];W[ep]WL[3549.102];B[cn]BL[3485.037];W[iq]WL[3545.369]C[The first time he did this, I thought it might be beneficial for me, but maybe not overly so, since he got the last corner. Now, I think I definitely get profit, because the other points on the board, while big, seem smaller than an empty corner.];B[cc]BL[3475.457];W[cd]WL[3511.684];B[dc]BL[3468.976];W[ed]WL[3510.472];B[ec]BL[3465.71];W[fc]WL[3503.418];B[fb]BL[3461.738](;W[qo]WL[3347.135](;B[qp]BL[3417.544]C[I was surprised at this choice, again. I guess he likes this pattern.];W[po]WL[3345.312];B[nq]BL[3413.84];W[qk]WL[3340.063]C[Overall, I feel OK.](;B[qi]BL[3404.656]C[Seems big, but I thought top left was bigger...];W[bc]WL[3316.265];B[bb]BL[3387.114];W[eb]WL[3284.371];B[db]BL[3382.303];W[gb]WL[3280.509];B[ea]BL[3357.121];W[gc]WL[3270.556];B[oi]BL[3322.519];W[ph]WL[3259.813];B[qh]BL[3318.678];W[pi]WL[3243.274](;B[pg]BL[3307.541](;W[pj]WL[3202.345];B[og]BL[3271.641]C[His stone can be separated, but I would say the result is not a disaster for him, at least. The influence of sticking out is decent];W[ck]WL[3187.314];B[ci]BL[3232.963];W[ej]WL[3159.884];B[ei]BL[3230.843];W[fi]WL[3154.82];B[eh]BL[3210.599];W[fh]WL[3147.799];B[fg]BL[3201.462];W[eg]WL[3142.451];B[dg]BL[3195.133];W[ef]WL[3137.839];B[dj]BL[3140.588];W[dk]WL[3134.086];B[df]BL[3113.732];W[gg]WL[2886.275];B[ce]BL[3101.049];W[be]WL[2879.811];B[bf]BL[3089.574]C[There's concern of a cut...](;W[bj]WL[2634.582]C[Now, I don't need to worry much about that cut (as much, at least)](;B[de]BL[3079.838];W[ff]WL[2600.904];B[ae]BL[3058.212];W[bd]WL[2593.387];B[bi]BL[3030.547]C[I spent a lot of time here - seems like maybe I can kill or something... but I couldn't find a way. The most I could think was to take a stone in ko.](;W[do]WL[2006.332]C[Slack!];B[bm]BL[3019.069]C[His move is nice! Now, I have to worry about cut again ](;W[cg]WL[1734.685]C[Here, I'm not aiming to kill. I am worried about that cut, so I want to get the stone.];B[bg]BL[2997.639];W[ch]WL[1717.792];B[dh]BL[2983.416];W[cj]WL[1712.407];B[af]BL[2979.286];W[di]WL[1705.656];B[ah]BL[2972.23]C[So I felt relaxed a bit now. I had that slack move, but now I feel less burden of being cut!];W[mg]WL[1672.169];B[dj]BL[2951.234];W[dn]WL[1651.555];B[ek]BL[2937.316];W[fj]WL[1641.714];B[nf]BL[2901.762];W[le]WL[1629.267]C[I am feeling OK about the game right now. Not super, but I feel competitive.];B[mf]BL[2892.271];W[lf]WL[1625.504];B[no]BL[2884.06](;W[lj]WL[1570.672]C[In the end, I decided to be modest - middle is shaping up nicely, so why not];B[kl]BL[2855.971](;W[jk]WL[1537.628]C[Decided to try to be content with this center];B[jl]BL[2851.797];W[ik]WL[1535.482];B[kk]BL[2847.256];W[kj]WL[1533.171];B[jo]BL[2787.777];W[kq]WL[1522.16];B[om]BL[2599.307]C[I felt mixed here - good about the center, bad about the right...];W[op]WL[1316.099](;B[np]BL[2450.806];W[rp]WL[1132.792];B[rq]BL[2415.143];W[rn]WL[1131.36];B[gr]BL[2407.438]C[Here, I suddenly felt a little bit better. Seems he's trying to move this stone. If he does that, I can build up strength against his stones in the center.];W[fr]WL[1120.139];B[gp]BL[2359.585];W[ho]WL[1074.564](;B[fq]BL[2339.697];W[dr]WL[1070.098]C[Hurts corner];B[hp]BL[2323.253];W[ip]WL[1065.087];B[fs]BL[2320.77];W[er]WL[1063.571];B[io]BL[2318.602];W[go]WL[1047.705];B[fo]BL[2302.952];W[fn]WL[1046.321];B[ir]BL[2296.614];W[hq]WL[996.799];B[jr]BL[2290.082];W[kp]WL[979.174];B[kr]BL[2282.197];W[hr]WL[971.703];B[cr]BL[2266.354];W[ln]WL[948.85];B[mm]BL[2262.164];W[lq]WL[939.745];B[lr]BL[2203.235];W[lm]WL[936.179];B[mk]BL[2191.634];W[mn]WL[915.662];B[nm]BL[2168.697];W[ll]WL[880.46];B[lk]BL[2160.489](;W[ml]WL[879.587];B[ok]BL[2155.715];W[nl]WL[873.777];B[nk]BL[2151.611];W[ol]WL[869.828];B[pk]BL[2145.448];W[ql]WL[820.051];B[pl]BL[2139.594];W[pm]WL[817.575];B[qm]BL[2136.123];W[pn]WL[814.878];B[qj]BL[2135.016]C[I forgot about this. So it's not terrible for him. But I still feel OK];W[nn]WL[757.3];B[rm]BL[2128.833]C[I think this result is not necessarily ideal for me];W[il]WL[741.332];B[ob]BL[2109.763];W[nb]WL[737.105];B[pb]BL[2103.52];W[mc]WL[723.063];B[ga]BL[2100.688](;W[ib]WL[720.208];B[ia]BL[2094.144];W[ja]WL[718.302];B[ha]BL[2086.109];W[hb]WL[716.664];B[fa]BL[2057.293];W[ab]WL[711.547];B[ba]BL[2048.564];W[cs]WL[704.049];B[bs]BL[2029.399];W[ds]WL[700.861];B[br]BL[1988.766]C[I guess I feel good about this game now. One more big mistake I found coming up, though];W[co]WL[698.256];B[bo]BL[1985.691];W[cm]WL[683.704];B[bn]BL[1982.21];W[sm]WL[677.297];B[sl]BL[1968.503];W[sn]WL[671.102];B[rk]BL[1899.415];W[pp]WL[639.44];B[qq]BL[1893.312];W[oq]WL[637.773];B[or]BL[1869.085];W[sq]WL[636.215];B[sr]BL[1862.602];W[sp]WL[634.465];B[qr]BL[1854.158];W[jm]WL[633.142];B[cl]BL[1837.084];W[dm]WL[630.722];B[dl]BL[1827.453];W[el]WL[625.94];B[bl]BL[1823.675](;W[nh]WL[617.92]C[I'm stupid here Why?!?];B[fk]BL[1811.423]C[Fortunately, it doesn't look big enough to win. But it was a big pain];W[gk]WL[598.763];B[fl]BL[1802.535];W[em]WL[595.207];B[aj]BL[1799.716];W[di]WL[592.753];B[oo]BL[1790.056];W[on]WL[583.247];B[dj]BL[1789.08];W[da]WL[569.352];B[ca]BL[1786.673];W[di]WL[567.109];B[jb]BL[1764.017];W[ka]WL[565.173];B[dj]BL[1761.676];W[mq]WL[534.734];B[mr]BL[1755.388];W[di]WL[531.728];B[kb]BL[1753.34];W[la]WL[528.9];B[dj]BL[1750.525];W[qn]WL[487.874];B[rl]BL[1738.108];W[di]WL[485.689];B[lb]BL[1736.01];W[ma]WL[481.434];B[dj]BL[1733.849];W[oh]WL[455.379];B[bk]BL[1730.012];W[gl]WL[451.383];B[ee]BL[1727.331];W[fe]WL[449.694];B[mi]BL[1725.066];W[lh]WL[437.163];B[oa]BL[1701.039];W[na]WL[432.462];B[hs]BL[1694.299];W[gq]WL[428.306];B[gs]BL[1666.251];W[dp]WL[400.108];B[cq]BL[1660.37];W[pe]WL[387.647];B[nd]BL[1652.466];W[md]WL[376.562];B[ne]BL[1637.495];W[nc]WL[373.681];B[km]BL[1543.723];W[kn]WL[370.404];B[mh]BL[1520.069];W[ng]WL[364.385];B[of]BL[1502.292];W[ni]WL[353.228];B[mj]BL[1489.683];W[oj]WL[349.355];B[li]BL[1485.57];W[ki]WL[348.132];B[mo]BL[1379.271];W[lo]WL[344.809];B[jq]BL[1295.831];W[jp]WL[343.208];B[mp]BL[1193.171];W[lp]WL[334.418];B[nr]BL[1168.601];W[fm]WL[333.058];B[dk]BL[1159.381];W[qe]WL[331.901];B[re]BL[1029.513];W[pf]WL[323.896];B[pd]BL[1019.413];W[oe]WL[309.316];B[ac]BL[987.429](;W[ad]WL[305.693](;B[rf]BL[984.951]C[genewong [4d?]: thx.. --- This variation is actually what happened after I let him take back his move. You can see the variation for his mistake. I let him take it back since I knew I was ahead. I don't know if I would have if he were behind - I lost a game last week for something silly, so mistakes like that should be accepted, IMO.];W[me]WL[300.98]C[Brian [-]: np Brian [-]: i think white is ahead genewong [4d?]: oh i should connect r13 ];B[qg]BL[964.741];W[fd]WL[297.676];B[is]BL[956.824];W[ac]WL[291.543];B[es]BL[954.865];W[aa]WL[285.957];B[nj]BL[954.066];W[]WL[285.957];B[]BL[954.065]C[Brian [-]: thanks Brian [-]: sorry, but i have to go now Brian [-]: i can vbe at the review genewong [4d?]: thanks Brian [-]: but i have to get back to work Brian [-]: thanks for playing Brian [-]: see you later genewong [4d?]: thx genewong [4d?]: see you ])(;B[aa]BL[952.443];W[rf]WL[302.971]C[genewong [4d?]: NOOO genewong [4d?]: WHAT SHOULD I DO NOW!!! Brian [-]: yeah, that's tough Brian [-]: last game in biba, i did something similar at the very endgame Brian [-]: lost the corner from something stupid genewong [4d?]: and you lose? Brian [-]: yeah Brian [-]: without that, i was +2.5 genewong [4d?]: .. ]))(;W[rf]C[Technically, I should do this now. I let him take back the move anyway, since I was already behind.]))(;W[fk]C[Just take!]))(;W[hb]C[Should have just done this]))(;W[pl]C[Maybe just let him free];B[mj];W[mi]C[Seems unlikely that he'll kill on the right.]))(;B[go]C[For example...];W[hn];B[gn];W[hm];B[gm];W[hl];B[dm]C[Let's say he somehow connects];W[mm]C[Then this area is a lot weaker. And I still have the center. So not bad]))(;B[qm]C[Maybe he can do this, too... My strategy is a little risky];W[oq];B[or];W[np];B[nr];W[mp];B[nk]C[I don't know ?]))(;W[ll]C[Thought about fighting back]))(;W[mp]C[Thought about trying to surround or something];B[np];W[mn]))(;W[mg];B[ek];W[fj];B[el];W[dm];B[dl];W[cm];B[cl];W[bl];B[bn]C[:-(]))(;W[lq]C[Here's an option])(;W[em]C[Or here])(;W[mg]C[Or around here... I think all are better than the game]))(;B[ek];W[fj];B[el];W[dm];B[dl];W[cm];B[cl];W[bl]))(;W[];B[ek];W[fj];B[el];W[dm]C[Here, I'd like to push out like this];B[dl];LB[bj:A]W[cm]C[If there were a stone at 'A', it'd be nice for me];B[cl];W[cj];B[di];W[bl];B[bm];W[bk]C[Maybe it doesn't work immediately, but there's aji to worry about]))(;W[qj])(;W[oh](;B[pj];W[qj]C[Considered this, too])(;B[og];W[nh]C[Probably this is better for me...])))(;B[pj];W[qj];B[og]C[Not really sure what's optimal here... I didn't think much of this move, though, so it could have been trouble](;W[oh])(;W[oj];B[pk];W[oh];B[nh];W[ni];B[pg];W[oi];B[ql];W[pl];B[ok])))(;B[gc];W[fd];B[bc]C[Again, I expected this]))(;B[gc]C[I expected this];W[fd];B[bc]C[As white, I don't like this a ton - but I got to play in the bottom right first, so maybe it's OK?]))(;W[bc]C[I considered this, but I thought there'd be ladder problems. In retrospect, I was imagining things.];B[bb];W[eb];B[bd];W[cb];B[ac];W[db];B[bc];W[gb];B[fd];W[gc];B[cf];W[fe]C[I'd like to be able to play here, but I thought the ladder might be bad, given black in the corner. But I didn't actually rad it, and I think this way works OK!];B[gd];W[hd];B[ge];W[gf];B[he];W[ie];B[hf];W[hg];B[if];W[jf];B[ig];W[ih];B[jg];W[kg];B[jh];W[ji];B[kh];W[lh];B[ki];W[kj];B[li];W[mi];B[lj];W[lk];B[mj];W[nj];B[mk];W[ml];B[nk];W[ok];B[nl];W[nm];B[ol];W[pl];B[om];W[on];B[pm];W[qm];B[pn];W[po];B[qn];W[rn];B[qo];W[qp];B[ro];W[rp];B[so];W[sp]))(;W[qo]C[I considered this, too. But the right side seemed low. I asked myself what I'd do if I were black. See the pass variation])(;W[];B[cf];W[fd];B[dj]C[If I were black, I like this kind of shape. That tells me that I'd prefer to play the bottom left corner as white, compared to the bottom right.]))

Author: Kirby [ Thu Feb 13, 2020 12:32 pm ]

Post subject: Re: Kirby's Study Journal

Some highlights...

Position 1

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . . O O O . . . . , . . . . O , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . X W X . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

It felt good to cut through here. But it can get more complicated like this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . . O O O . . . . , . . . . O , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . X O X . . | $$ | . . . , . . . . . , . . . . . 1 2 . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

It might still be OK for me, I feel, but it's a little complicated. I certainly didn't read this during the game (and I haven't really read it out yet, now, either!).

---

Position 2

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . . . . . . . . . | $$ | . X . X O O . . . . . . . . . . X . . | $$ | . . . X O . O . . . . . . . X X . . . | $$ | . . . . X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O . X O . . . . , . . . . . O . . . | $$ | . . O O . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . W . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The move above is naive. I expect him to just answer me:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . . . . . . . . . | $$ | . X . X O O . . . . . . . . . . X . . | $$ | . . . X O . O . . . . . . . X X . . . | $$ | . . . . X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O . X O . . . . , . . . . . O . . . | $$ | . . O O . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . B O . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

His move was *great*, and it helps with the cut:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . . . . . . . . . | $$ | . X . X O O . . . . . . . . . . X . . | $$ | . . . X O . O . . . . . 2 . X X . . . | $$ | . . . . X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O . X O 4 . . . , . . . . . O . . . | $$ | . . O O 3 . . . . . . . . . . . O . . | $$ | . . 9 7 5 . . . . . . . . . . . . . . | $$ | . 1 8 6 . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

!!!

I thought his move was great.

I feel OK about the resulting follow up to get me the stone, but maybe he could have still resisted:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . . . . . . . . . | $$ | 5 X . X O O . . . . . . . . . . X . . | $$ | . 1 W X O . O . . . . . . . X X . . . | $$ | . . 2 3 X O . . . . . . . . . O X . . | $$ | . X X 6 X O . . . . . . . . X O X . . | $$ | . O 4 C O . . . . , . . . . . O . . . | $$ | . . O O . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Felt great to do this, though, seems he may have a way to resist.

---

Position 3
This is a little risky:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . O . . . . . . . | $$ | X X . X O O . . . . . O X X . . X . . | $$ | . X O X O . O . . . . . O . X X . . . | $$ | X . O X X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O O X O O . . . , O O . . . O . . . | $$ | . . O O X . . . O O X . . . . . O . . | $$ | . . . . . . . . . X X . . . . . . . . | $$ | . X . . . . . . . . . . . . X . a . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . O . . . . . X . . . X . O O . . | $$ | . . X , O . . . . , . . . . W , X . . | $$ | . . . X O . . . O . O . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

For example, black might play at 'a', and it can mix things up.

I think my position is decent right now, so probably I should just be solid here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . O . . . . . . . | $$ | X X . X O O . . . . . O X X . . X . . | $$ | . X O X O . O . . . . . O . X X . . . | $$ | X . O X X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O O X O O . . . , O O . . . O . . . | $$ | . . O O X . . . O O X . . . . . O . . | $$ | . . . . . . . . . X X . . . . . . . . | $$ | . X . . . . . . . . . . . . X . W . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . O . . . . . X . . . X . O O . . | $$ | . . X , O . . . . , . . . . . , X . . | $$ | . . . X O . . . O . O . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Very hard for me to force myself to play this way, though. Seems very passive to me. But probably safer in this case. And I can be more aggressive on follow ups after this, perhaps...

---

Position 4
Cutting here puts risk on my right side group:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . O . . . . . . . | $$ | X X . X O O . . . . . O X X . . X . . | $$ | . X O X O . O . . . . . O . X X . . . | $$ | X . O X X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O O X O O . . . , O O . . . O . . . | $$ | . . O O X . . . O O X X X . . . O . . | $$ | . . . . . . . . . X X O W . . . . . . | $$ | . X . . . . . . . . . O X X X . . . . | $$ | . . X O . O . . . . . O O . . . . O . | $$ | . . . O . X O O X X . . . X . O O . . | $$ | . . X , O . X X O , O . . X O , X O . | $$ | . . . X O X . O O . O O . X . X . X . | $$ | . . X O O O X O X X X X . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I think it makes more sense to let him connect, and defend my group:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . X . . . . . . . . . . . . . . | $$ | . X . X . X O . . . . . . . . . . . . | $$ | . O X X X O O . . . O . . . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . O . . . . . . . | $$ | X X . X O O . . . . . O X X . . X . . | $$ | . X O X O . O . . . . . O . X X . . . | $$ | X . O X X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O O X O O . . . , O O . . . O . . . | $$ | . . O O X . . . O O X X X . . . O . . | $$ | . . . . . . . . . X X O O . . W . . . | $$ | . X . . . . . . . . . O X X X . . . . | $$ | . . X O . O . . . . . O O . . . . O . | $$ | . . . O . X O O X X . . . X . O O . . | $$ | . . X , O . X X O , O . . X O , X O . | $$ | . . . X O X . O O . O O . X . X . X . | $$ | . . X O O O X O X X X X . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Attacking doesn't have to kill - it can bring other benefits. Like here, strengthening my right side group.

---

Position 5
Obviously, don't tenuki here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . X . . X X X X X O . . . . . . . . . | $$ | O X . X . X O O O . . . . O X X . . . | $$ | . O X X X O O . . . O . O . O X . . . | $$ | . O O O O . . . . , . . . . O , X . . | $$ | X O X X . . . . . . . O . . . . . . . | $$ | X X . X O O . . . . . O X X . . X . . | $$ | . X O X O . O . . . . . O . X X . . . | $$ | X . O X X O . . . . . . . . . O X . . | $$ | . X X . X O . . . . . . . . X O X . . | $$ | . O O X O O . . . , O O . . . O X . . | $$ | . . O O X . . . O O X X X X X X O X . | $$ | . B X X O . . . O X X O O O O X O . X | $$ | . X O O . . . . . O . O X X X O X X O | $$ | . X X O . O . . . . . O O O . O . O O | $$ | . X O O . X O O X X . . . X . O O . . | $$ | . . X , O . X X O , O . . X O O X O O | $$ | . . . X O X . O O . O O . X O X X X O | $$ | . X X O O O X O X X X X . . X . X . X | $$ | . X O O . X . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I don't know what I was thinking here - I guess I lost my concentration.

---

Summary

In this game, there are two takeaways that I want to hold on to:
1. Don't be naive. I expected my opponent to answer in an obvious way in Position 2, but this was wishful thinking, as they say.
2. Don't put so much risk into the game. When I feel a little comfortable, I should consolidate - not give more chances. This is hard for me to do, though.

Author:	Bill Spight [ Fri Feb 14, 2020 10:26 am ]
Post subject:	Re: Kirby's Study Journal
Kirby wrote: Last week, I did problems and they seemed pretty simple. So Diana gave me some harder ones - 12 of them. I thought they were harder, but I did them in 40 minutes, and got them all correct. She said that it was good to get them correct, but I should aim to get the 12 problems done in 24 minutes - 2 minutes a problem. Yeah, 2 min. per problem seems like a good time limit. But my guess is that the pros do not know about the 50% rule for learning tasks. A good level for the problems is one where you get half of them right in the time allowed.

Author:	Bill Spight [ Fri Feb 14, 2020 11:03 am ]
Post subject:	Re: Kirby's Study Journal
A few caustic comments on the last game. By now I am reasonably certain that the last corner tedomari is a thing. Besides that, even the ancients who played with no komi thought that this approach was objectively suboptimal, but did not want to give Black an easy game. Long before the AI era, Shuei showed that leaving this two stone shape to fend for itself was fine. Seize the last open corner. (And the bots have shown that the three space extension rule is not correct. Jowa and other top players did not follow it, either.) What special opening did you prevent Black from playing? He got in the Shusaku 1-3-5, didn't he? Well, I do not yet have my new computer to back me up, but I bet that just about any top bot with at least 4k rollouts for each of these options will say that the keima approach to the bottom right corner has a better winrate for White than this three space extension. I guess he likes that pattern, too. Probably because his opponents are content to extend three from two stones.

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