Game Review (ELF) 05072018

[Gomoto]

Gomoto vs Friend F. 2D European
Very interesting corner sequence in the top right. What do you think? (ELF struggels evaluating correctly the variation.)

(
;FF[1]SZ[19]PB[Gomoto]PW[Friend F]BS[0]WS[0]KM[6.5]HA[0]RU[JP]AP[Sabaki:0.34.1]VW[]GN[CS Pro]GC[]DT[2018-07-05 18:58:50]RE[W+R]WR[2D]EV[Local Game]CA[UTF-8]C[Gomoto vs Friend F 2D European

Interesting game, both players have winning chances.

ELF struggels evaluationg the top right corner sequence.

Many mistakes by both players, so good chances for learning LOL.

(Percentage Numbers = Winning Chance Black)
]
;B[pd]TL[24,0]
;W[cp]TL[119,0]
;B[dd]TL[0,0]
;W[qp]TL[2,0]
;B[eq]TL[4,0]
;W[dn]TL[149,0]
;B[oq]TL[4,0]C[Best Move 54%]
(
;W[lq]TL[1,0]C[Mistake 66%]
;B[po]TL[2,0]
;W[qo]TL[6,0]
;B[pn]TL[0,0]
;W[qm]TL[79,0]
(
;B[hq]TL[2,0]C[slack 61%]
(
;W[lo]TL[0,0]
;B[pm]TL[2,0]C[Good Move 66%]
;W[ql]TL[0,0]
(
;B[mm]TL[1,0]C[Mistake 55%]
;W[lm]TL[52,0]
;B[ll]TL[2,0]
;W[km]TL[0,0]
(
;B[ml]TL[0,0]C[Big Mistake 43%]
;W[cf]TL[18,0]
;B[fc]TL[5,0]
;W[di]TL[3,0]
;B[qf]TL[1,0]
;W[dq]TL[1,0]
;B[dr]TL[0,0]
;W[ep]TL[0,0]
(
;B[cq]TL[0,0]C[Big Mistake 25%]
;W[dp]TL[1,0]
;B[fr]TL[0,0]
;W[fq]TL[3,0]
;B[er]TL[0,0]
;W[cr]TL[1,0]
;B[bq]TL[8,0]C[Mistake, it is not always good to add one stone.]
;W[br]TL[83,0]
;B[fp]TL[0,0]
;W[cc]TL[280,0]
;B[cd]TL[0,0]
(
;W[dc]TL[3,0]C[Big Mistake 53%]
(
;B[ed]TL[203,0]C[Very Big Mistake 30%
Loosing Move]
;W[fb]TL[72,0]
;B[gb]TL[0,0]
;W[eb]TL[138,0]
;B[gc]TL[0,0]
;W[ob]TL[61,0]
;B[pb]TL[0,0]
;W[oc]TL[0,0]
;B[pc]TL[2,0]
;W[lc]TL[1,0]
(
;B[jc]TL[11,0]
;W[le]TL[26,0]
(
;B[bd]TL[1,0]
;W[bc]TL[0,0]
(
;B[ch]TL[16,0]C[mistake 10%]
;W[ci]TL[17,0]
;B[dh]TL[0,0]
;W[eh]TL[53,0]
;B[df]TL[0,0]
;W[bh]TL[28,0]
;B[dg]TL[0,0]
;W[bg]TL[5,0]
;B[fo]TL[96,0]
;W[je]TL[52,0]
;B[eo]TL[2,0]
;W[cn]TL[0,0]
;B[kb]TL[203,0]
;W[qi]TL[233,0]
;B[qn]TL[0,0]
;W[rn]TL[2,0]
;B[rm]TL[0,0]
;W[ro]TL[0,0]
;B[qk]TL[9,0]
;W[rl]TL[144,0]
;B[pl]TL[0,0]
;W[rk]TL[0,0]
;B[qj]TL[0,0]
;W[rj]TL[2,0]
;B[ne]TL[91,0]
;W[md]TL[19,0]
;B[pi]TL[105,0]
;W[qh]TL[48,0]
;B[ph]TL[0,0]
;W[kl]TL[114,0]
;B[fm]TL[1,0]
;W[lj]TL[8,0]
;B[kk]TL[17,0]
;W[lk]TL[31,0]
;B[jk]TL[0,0]
;W[im]TL[92,0]C[mistake 30%]
;B[ki]TL[1,0]
;W[li]TL[6,0]C[Big Mistake 50%
Game is even again]
(
;B[kh]TL[0,0]
;W[lh]TL[34,0]
(
;B[kg]TL[0,0]C[Mistake 42%]
(
;W[pj]TL[49,0]C[Mistake 58%]
;B[pk]TL[0,0]
(
;W[pg]TL[0,0]C[Big Mistake 70%]
;B[oj]TL[0,0]
;W[qg]TL[33,0]C[Mistake 82%]
;B[lg]TL[0,0]
;W[qe]TL[83,0]C[Mistake 88%]
;B[pe]TL[0,0]
;W[mg]TL[125,0]
(
;B[mh]TL[0,0]C[Mistake 75%]
;W[ng]TL[24,0]
(
;B[nh]TL[0,0]C[Loosing Move 38%]
;W[oh]TL[12,0]
;B[oi]TL[0,0]
;W[og]TL[13,0]
;B[ni]TL[0,0]
;W[rf]TL[40,0]
;B[qd]TL[2,0]
;W[re]TL[1,0]
;B[oa]TL[176,0]
;W[mb]TL[0,0]
;B[rb]TL[1,0]
;W[rc]TL[622,0]
;B[rd]TL[2,0]
;W[sb]TL[1,0]
;B[sd]TL[1,0]
;W[qb]TL[0,0]
;B[ra]TL[0,0]
;W[qa]TL[0,0]
;B[sc]TL[0,0]
;W[sa]TL[2,0]
(
;B[ra]TL[0,0]C[Not necessary!
Loosing Move Number 2
8%]
;W[hi]TL[147,0]
(
;B[ei]TL[2,0]C[Mistake 12%]
;W[kj]TL[5,0]
;B[jj]TL[0,0]
;W[ji]TL[0,0]
;B[ii]TL[235,0]
;W[jh]TL[2,0]
;B[jg]TL[1,0]
;W[ih]TL[0,0]
;B[mk]TL[4,0]
;W[ij]TL[0,0]
;B[mj]TL[4,0]
;W[ej]TL[0,0]
;B[fi]TL[12,0]
;W[fh]TL[9,0]
;B[fj]TL[0,0]
;W[fk]TL[14,0]
;B[ek]TL[0,0]
;W[gj]TL[15,0]
;B[dj]TL[113,0]
;W[gi]TL[2,0]
;B[ej]TL[6,0]
;W[el]TL[1,0]
;B[cj]TL[0,0]
;W[bi]TL[0,0]
;B[fl]TL[8,0]
;W[gk]TL[0,0]
;B[em]TL[102,0]
;W[dl]TL[0,0]
;B[dm]TL[2,0]
;W[cl]TL[0,0]
;B[cm]TL[1,0]
;W[bm]TL[0,0]
;B[bl]TL[70,0]
;W[bk]TL[1,0]
;B[bn]TL[32,0]
;W[al]TL[1,0]
;B[bo]TL[0,0]
;W[bp]TL[1,0]
;B[do]TL[24,0]
;W[co]TL[0,0]
;B[en]TL[25,0]
;W[aq]TL[2,0]
;B[kp]TL[76,0]
;W[kq]TL[12,0]
;B[jp]TL[0,0]
;W[jq]TL[17,0]
;B[iq]TL[0,0]
;W[lp]TL[16,0]
;B[ac]TL[0,0]
;W[ab]TL[0,0]
;B[ad]TL[0,0]
;W[cb]TL[1,0]
;B[gg]TL[11,0]
;W[gh]TL[12,0]
;B[kd]TL[30,0]
;W[ke]TL[2,0]
;B[mf]TL[63,0]
;W[na]TL[25,0]
;B[pa]TL[0,0]
;W[kc]TL[11,0]
;B[jd]TL[0,0]
;W[jb]TL[24,0]
;B[ib]TL[0,0]
;W[la]TL[35,0]
;B[ja]TL[0,0]
;W[lb]TL[1,0]
;B[ie]TL[44,0]
;W[pq]TL[32,0]
;B[or]TL[0,0]
;W[pr]TL[16,0]
;B[pp]TL[0,0]
;W[np]TL[30,0]
;B[op]TL[0,0]
;W[hf]TL[29,0]
;B[he]TL[0,0]
;W[gf]TL[1,0]
;B[ge]TL[8,0]
;W[ir]TL[22,0]
;B[hr]TL[0,0]
;W[io]TL[10,0]
;B[ip]TL[1,0]
;W[js]TL[3,0]
;B[ce]TL[4,0]
;W[nn]TL[0,0]
;B[bf]TL[1,0]
;W[ff]TL[44,0]
;B[ag]TL[1,0]
;W[bj]TL[8,0]
;B[qr]TL[4,0]
;W[qq]TL[0,0]
;B[ps]TL[0,0]
;W[rr]TL[1,0]C[Black resigns.]
)(
;B[kp]C[much better, still only 25%
black should resign
End of comments.]
)
)(
;B[jq]C[Much much better, no need to play in the upper right.]
;W[pa]
;B[qc]
;W[na]
;B[rb]
;W[oa]
;B[ra]C[Game is even 50 %]
)
)(
;B[kd]
;W[kc]
;B[jd]
;W[lb]
;B[pf]
;W[jb]
;B[ib]
;W[ka]
(
;B[ei]C[Good for Black 68%]
)(
;B[kp]C[Good for Black 70%]
)(
;B[og]C[Good for Black 67%]
)
)
)(
;B[mf]C[much better 90%]
;W[lb]
;B[kc]
;W[kd]
(
;B[ng]
)(
;B[kf]
;W[ng]
;B[nd]
;W[ig]
(
;B[hh]C[Black is winning 90%]
)(
;B[og]C[Black is winning 90%]
)
)
)
)(
;W[lg]C[much better, even game 50%]
)
)(
;W[lg]C[Good for White]
)
)(
;B[lg]C[Good Move 53%]
)
)(
;B[lh]C[Good Move 53%]
)
)(
;B[od]C[better 20%]
)
)(
;B[bc]
;W[bb]
;B[be]C[better]
)
)(
;B[kc]
;W[kd]
;B[jc]
;W[ld]
)
)(
;B[ec]C[This is the correct move. I know this one but was afraid of the cut.]
(
;W[bd]
;B[be]
;W[bc]
;B[ce]
;W[bf]
;B[ae]
(
;W[db]
;B[df]C[Even Game 51%]
)(
;W[ed]C[cut still not working]
;B[ee]C[just this, there is no worthy ladder breaker]
)
)(
;W[ed]C[but the cut is not working ...]
;B[bc]
;W[bb]
;B[be]
;W[ee]
(
;B[bf]C[Good for Black 63]
)(
;B[eb]C[Good for Black 63%]
)
)
)
)(
;W[bd]C[much better, white keeps the lead 37%]
)
)(
;B[er]C[much better 46%]
;W[cr]
;B[fp]
;W[fo]
;B[eo]
;W[dp]
;B[gp]
)
)(
;B[kl]
)(
;B[kp]
)(
;B[mn]
)(
;B[pl]
)
)(
;B[pl]
;W[qk]
;B[pk]
;W[qj]
;B[kp]
;W[lp]
;B[lm]C[Good for Black 64%]
)
)(
;W[jq]
)
)(
;B[iq]C[better 65%]
)(
;B[pm]C[better 65%]
)
)(
;W[pq]C[better 55%]
)
)

[Gomoto]

Some interesting positions of the game ...

[Gomoto]

Advantage Black:

[Gomoto]

Black should continue to press ...
(Pushing from behind no mistake in this case)

[Gomoto]

Big Mistake by black ...

black should just play:

f4.jpg (173.23 KiB) Viewed 13010 times

but he played:

f5.jpg (172.32 KiB) Viewed 13010 times

[Gomoto]

Now for a mistake by white ...

good options are:

f6.jpg (175.63 KiB) Viewed 13010 times

but he played:

f7.jpg (175.09 KiB) Viewed 13010 times

[Gomoto]

White still had the lead ...

f8.jpg (190.85 KiB) Viewed 13010 times

but he played ...

f9.jpg (189.97 KiB) Viewed 13010 times

[Gomoto]

Black has a very promising position after this mistake by white:

[Gomoto]

Black should have played N14:

[Gomoto]

Black would still be good ...

f12.jpg (194.4 KiB) Viewed 13010 times

but he chooses to loose the game ...

f13.jpg (191.68 KiB) Viewed 13010 times

[Gomoto]

ELF struggels to evaluate the top right corner:

f14.jpg (196.02 KiB) Viewed 13015 times

f15.jpg (195.74 KiB) Viewed 13015 times

f16.jpg (195.76 KiB) Viewed 13015 times

... but this is not the game

[Gomoto]

Black would be back in the game ...

f18.jpg (197 KiB) Viewed 13015 times

but in the game he played the second loosing move (S19 achieves nothing, the corner is already alive, and the senseless move therefore offers the game to white) ...

f20.jpg (196.65 KiB) Viewed 13015 times

[Bill Spight]

Some interesting positions of the game ...

See JPG for . viewtopic.php?p=233673#p233673 Quoting does not copy the JPG diagram.

Go Seigen likes the mukai komoku for White.

It looks like White should not answer Black's first low approach. Probably he should enclose the other corner, eh?

Edit: And the after Black approaches the second corner low, White should definitely not play the two space low pincer against that stone. viewtopic.php?p=233674#p233674

[Gomoto]

... but dont tell, many dont know it yet