looking for help on SDK game
Posted: Sun Jul 31, 2011 3:24 pm
Comments are in the sgf, thanks for looking 
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]SZ[19]KM[6.50]TM[1500]OT[5x30 byo-yomi]PW[greendemon]PB[keewell]WR[3k]BR[3k]DT[2011-07-27]PC[The KGS Go Server at http://www.gokgs.com/]C[I lost this game by losing a big corner in the lower right. I lost that corner trying to save a weak group in the center. I put comments on moves I thought were questionable. Thanks for reviewing the game!]RE[B+Resign];B[qd]BL[1497.348];W[pp]WL[1487.532];B[dp]BL[1492.664];W[dc]WL[1478.964];B[ce]BL[1487.03];W[dh]WL[1466.066];B[cl]BL[1483.367]C[I felt like it was a mistake for black to leave that black stone, but looking back I didn't really gain too much, maybe black's move was OK.](;W[de]WL[1441.266]C[Maybe C16 instead?
JB: I like C16. It forces him to become heavy and eyeless, or to abandon the stone.];B[df]BL[1482.014](;W[cd]WL[1397.98]C[Is E15 better?
JB: My gut feel is that it is not. The theoretical problem with D15 is that it encourages a weak stone to make itself strong in a close quarters fight. As you are in the stronger position locally, you would prefer to have a slower fight in which you can bring your greater strength to bear. E15 likewise encourages the strengthening of the weak stone.
It may be tactically justifiable, but theoretically it looks bad.];B[ee]BL[1478.987];W[dd]WL[1395.758];B[ef]BL[1470.865](;W[od]WL[1384.142]C[JB: He still is short on eye space, and you still have him pincered. You're outside of the joseki books, but he still has a very real weakness if you would care to exploit it. See variations.];B[pe]BL[1464.671]C[Never seen this move before
JB: Because it is a terrible move. After your natural P15, your shape is stronge than his.](;W[cf]WL[1340.839]C[I was trying to keep the 3 stones weak, but I didn't succeed really
JB: See variation];B[cg]BL[1462.662];W[be]WL[1337.487];B[dg]BL[1459.844](;W[bg]WL[1333.261]C[Sente, but maybe helps black more than white];B[ch]BL[1455.99];W[oe]WL[1309.021]C[JB: Good!];B[qh]BL[1452.629](;W[kd]WL[1299.379]C[JB: Can't be a bad move... but see variation nonetheless.];B[nq]BL[1447.845];W[qn]WL[1289.643];B[jp]BL[1442.276];W[fq]WL[1279.66];B[hq]BL[1437.826];W[cq]WL[1274.882];B[dq]BL[1435.212];W[cp]WL[1271.085];B[co]BL[1433.104]C[overplay?];W[cr]WL[1226.223];B[dr]BL[1426.997];W[do]WL[1223.684]C[I think black messed up some here];B[eo]BL[1399.031];W[dn]WL[1219.37];B[fp]BL[1389.263];W[cn]WL[1215.487];B[em]BL[1384.358](;W[lp]WL[1184.889]C[I think maybe just a play around G16 is bigger.
Yep. R10 is amusing too. And R17 is still....ummm...what'ts that word that begins with 'U'?];B[no]BL[1379.559];W[ln]WL[1175.697];B[nm]BL[1377.637];W[oq]WL[1160.296];B[mq]BL[1374.844];W[ll]WL[1150.2];B[pl]BL[1373.637];W[gd]WL[1124.105];B[qq]BL[1361.106];W[pq]WL[1115.233];B[qm]BL[1359.319];W[rn]WL[1107.924];B[ic]BL[1349.084]C[I think my response to this ultimately lost me the game. I got too excited about capturing the black stones and let my own weak group get completely cut off. I'm not sure who's ahead before this, but it seems fairly even.](;W[jc]WL[1091.161]C[J16 better? this was my only big territory, I wanted to preserve as much as possible. I thought I could make J17 heavy];B[id]BL[1344.796];W[he]WL[1068.237];B[ie]BL[1340.817](;W[hf]WL[1061.896]C[JB: See variation
];B[mc]BL[1339.998]C[good move from black];W[md]WL[1043.645];B[fc]BL[1338.819];W[fd]WL[1029.882];B[ed]BL[1337.082];W[gc]WL[1019.197];B[ec]BL[1334.369];W[if]WL[1017.141];B[ke]BL[1332.853](;W[le]WL[856.928];B[jf]BL[1323.52];W[jg]WL[820.255];B[kg]BL[1319.992];W[jd]WL[811.917]C[JB: Aji keshi. Save it for a ko threat. He can't fix it without making a small move in gote. It is yours whenever you need it.];B[je]BL[1316.401];W[jh]WL[802.997];B[lc]BL[1310.482];W[ld]WL[797.736];B[kh]BL[1309.039](;W[lf]WL[793.475]C[Maybe I needed to try harder to connect my center stones];B[ji]BL[1307.635];W[kf]WL[772.655]C[Seems like I wasn't being cautious enough here. I made big profit on the top, but my stones in the center are in trouble now];B[ii]BL[1305.294];W[ig]WL[766.436];B[mi]BL[1303.769];W[kj]WL[720.568]C[Now I have to struggle to live
JB: This makes him strong. What does it do for you. Not much that I can see, except for it deprives you of a ko threat.];B[ik]BL[1299.14];W[ki]WL[716.541];B[mg]BL[1298.198];W[jo]WL[702.166];B[kp]BL[1294.164];W[li]WL[683.126];B[mh]BL[1292.139];W[jl]WL[674.33]C[It's hard to know how to play this kind of fight, if you see any good tesuji to live let me know!];B[jk]BL[1285.454];W[kk]WL[671.081];B[km]BL[1283.36](;W[jm]WL[659.927];B[lm]BL[1279.432];W[mn]WL[581.862];B[mm]BL[1265.569];W[nn]WL[578.7];B[on]BL[1264.441];W[oo]WL[572.427];B[mo]BL[1252.77];W[lo]WL[568.258];B[lq]BL[1240.602];W[om]WL[553.701];B[pn]BL[1237.726];W[ol]WL[549.792];B[pm]BL[1218.223];W[nl]WL[531.795]C[I save the middle, but my corner is in trouble now.];B[ml]BL[1216.879];W[mk]WL[527.28];B[qp]BL[1159.72]C[Hard to answer. Is the corner already dead?](;W[qr]WL[462.609]C[JB: Lets you get split with no compensation. See var];B[rr]BL[1151.718];W[ps]WL[394.263];B[qo]BL[1145.839];W[po]WL[378.264];B[rm]BL[1144.341];W[rs]WL[299.356];B[rq]BL[1123.08](;W[gl]WL[254.87]C[I tried to fight back for a long time, but nothing came up. From here on I don't really see a way to win. End of comments.
JB: It is not yet decided. A slightly more prudent play may allow you to invade much of his left side. See var];B[hm]BL[1115.412];W[hl]WL[249.951];B[il]BL[1112.657];W[im]WL[248.427];B[in]BL[1110.547];W[jn]WL[241.205];B[gj]BL[1107.272];W[hk]WL[218.504];B[hj]BL[1105.668];W[ij]WL[216.165];B[jj]BL[1104.11];W[hi]WL[214.587];B[gi]BL[1099.15];W[hn]WL[201.704];B[gm]BL[1097.714];W[gn]WL[199.862];B[fm]BL[1095.314];W[io]WL[196.839];B[pb]BL[1090.798];W[ob]WL[192.51];B[pc]BL[1081.286];W[oc]WL[180.706];B[ok]BL[1079.937];W[nk]WL[177.597];B[oj]BL[1073.909];W[nj]WL[174.742];B[oh]BL[1072.18];W[ni]WL[172.374];B[pg]BL[1069.068];W[oi]WL[165.24];B[pi]BL[1066.375];W[pk]WL[151.095];B[pj]BL[1064.225];W[bh]WL[113.707];B[ci]BL[1059.964];W[ds]WL[100.46];B[es]BL[1057.762];W[cs]WL[97.144];B[er]BL[1056.717];W[ip]WL[78.613];B[iq]BL[1053.839];W[of]WL[54.087];B[og]BL[1049.962];W[pf]WL[49.604];B[qf]BL[1048.949];W[pd]WL[47.697];B[qe]BL[1048.047];W[pa]WL[38.917];B[jb]BL[1045.041];W[kb]WL[34.085];B[hb]BL[1043.617];W[gb]WL[15.263];B[kc]BL[1042.549];W[la]WL[30]OW[4];B[lb]BL[1034.674];W[na]WL[30]OW[4];B[ka]BL[1033.125];W[ma]WL[30]OW[4];B[qb]BL[1024.208];W[mf]WL[30]OW[3];B[fb]BL[1021.387];W[ha]WL[30]OW[3];B[ia]BL[1012.514];W[ga]WL[30]OW[3];B[fa]BL[1010.29];W[hd]WL[30]OW[2];B[bm]BL[1000.24];W[bn]WL[30]OW[2];B[bi]BL[998.606];W[qa]WL[30]OW[2];B[ra]BL[995.768];W[oa]WL[30]OW[2];B[rc]BL[994.341];W[db]WL[30]OW[2];B[hh]BL[980.275];W[gg]WL[30]OW[2];B[fe]BL[977.813];W[nc]WL[30]OW[2];B[hg]BL[975.318];W[gf]WL[30]OW[2];B[ge]BL[967.769];W[hc]WL[30]OW[2];B[gh]BL[963.872];W[fg]WL[30]OW[2];B[fh]BL[960.311];W[ib]WL[30]OW[2];B[dm]BL[952.747];W[eg]WL[30]OW[2];B[eh]BL[950.62];W[cm]WL[30]OW[2];B[bl]BL[948.531];W[go]WL[30]OW[2];B[gp]BL[946.614];W[en]WL[30]OW[2];B[fn]BL[944.801];W[fo]WL[30]OW[2];B[ep]BL[943.445](;W[hp]WL[30]OW[2];B[bo]BL[941.335]C[greendemon [3k]: thansk
keewell [3k]: ty
])(;W[bo]))(;W[hm]C[JB: Just a hypothetical sequence...
END COMMENTS
];B[in];W[jn];B[im];W[il];B[hl];W[hk];B[gl];W[hn];B[io];W[ij];B[jj];W[hi]))(;W[qo]C[JB: Maybe gets a ko? Hard to say, and again I'm too lazy to read. But better than the game.](;B[pr];W[or];B[qr];W[po];B[rp];W[ps]C[Black has 1 big eye, but white has no eyes, it seems like there's now way for white ot win this];B[rm])(;B[qr];W[pr];B[po];W[rp];B[rq];W[sq])))(;W[il];B[hl];W[lm];B[im];W[jm];B[jn];W[kl];B[in];W[kn]C[only 1 eye]))(;W[ki];B[ji];W[ii];B[jj](;W[lh])(;W[li];B[lf];W[mf];B[mg]))(;W[ji]))(;W[je]C[I almost played this way, but it seemed to easy on black];B[jd];W[jf];B[kc];W[ld];B[lc];W[nc];B[lj]))(;W[kf]))(;W[id](;B[hd];W[hc];B[he];W[jc];B[gc];W[hb];B[fd];W[gb];B[fc];W[nk])(;B[jc](;W[jd];B[kc];W[lc];B[lb])(;W[kc];B[jd];W[je];B[hd];W[hc];B[ie];W[he];B[if]))))(;W[fd])(;W[gd])(;W[hd])(;W[hc]))(;W[qc]C[JB: I'm too lazy to check it out tactically, but it feels like it is good shape. And it is a corner.]))(;W[ch];B[bg];W[eh];B[bi])(;W[gd]))(;W[be]C[JB: If you really must go after that stone, this is probably the better way to do it. Keep in mind, however, that either way it is small, and any response by him tends to jeopardize D12.
Think big. Let him worry about his eyeless group while you play big moves elsewhere. ( or at G16 )]))(;W[fd])(;W[gd]))(;W[ee];B[cd];W[cc];B[cg];W[ef];B[ch]C[maybe something like this]))(;W[cd];B[de];W[fd]C[better?]))
JB: I like C16. It forces him to become heavy and eyeless, or to abandon the stone.];B[df]BL[1482.014](;W[cd]WL[1397.98]C[Is E15 better?
JB: My gut feel is that it is not. The theoretical problem with D15 is that it encourages a weak stone to make itself strong in a close quarters fight. As you are in the stronger position locally, you would prefer to have a slower fight in which you can bring your greater strength to bear. E15 likewise encourages the strengthening of the weak stone.
It may be tactically justifiable, but theoretically it looks bad.];B[ee]BL[1478.987];W[dd]WL[1395.758];B[ef]BL[1470.865](;W[od]WL[1384.142]C[JB: He still is short on eye space, and you still have him pincered. You're outside of the joseki books, but he still has a very real weakness if you would care to exploit it. See variations.];B[pe]BL[1464.671]C[Never seen this move before
JB: Because it is a terrible move. After your natural P15, your shape is stronge than his.](;W[cf]WL[1340.839]C[I was trying to keep the 3 stones weak, but I didn't succeed really
JB: See variation];B[cg]BL[1462.662];W[be]WL[1337.487];B[dg]BL[1459.844](;W[bg]WL[1333.261]C[Sente, but maybe helps black more than white];B[ch]BL[1455.99];W[oe]WL[1309.021]C[JB: Good!];B[qh]BL[1452.629](;W[kd]WL[1299.379]C[JB: Can't be a bad move... but see variation nonetheless.];B[nq]BL[1447.845];W[qn]WL[1289.643];B[jp]BL[1442.276];W[fq]WL[1279.66];B[hq]BL[1437.826];W[cq]WL[1274.882];B[dq]BL[1435.212];W[cp]WL[1271.085];B[co]BL[1433.104]C[overplay?];W[cr]WL[1226.223];B[dr]BL[1426.997];W[do]WL[1223.684]C[I think black messed up some here];B[eo]BL[1399.031];W[dn]WL[1219.37];B[fp]BL[1389.263];W[cn]WL[1215.487];B[em]BL[1384.358](;W[lp]WL[1184.889]C[I think maybe just a play around G16 is bigger.
Yep. R10 is amusing too. And R17 is still....ummm...what'ts that word that begins with 'U'?];B[no]BL[1379.559];W[ln]WL[1175.697];B[nm]BL[1377.637];W[oq]WL[1160.296];B[mq]BL[1374.844];W[ll]WL[1150.2];B[pl]BL[1373.637];W[gd]WL[1124.105];B[qq]BL[1361.106];W[pq]WL[1115.233];B[qm]BL[1359.319];W[rn]WL[1107.924];B[ic]BL[1349.084]C[I think my response to this ultimately lost me the game. I got too excited about capturing the black stones and let my own weak group get completely cut off. I'm not sure who's ahead before this, but it seems fairly even.](;W[jc]WL[1091.161]C[J16 better? this was my only big territory, I wanted to preserve as much as possible. I thought I could make J17 heavy];B[id]BL[1344.796];W[he]WL[1068.237];B[ie]BL[1340.817](;W[hf]WL[1061.896]C[JB: See variation
];B[mc]BL[1339.998]C[good move from black];W[md]WL[1043.645];B[fc]BL[1338.819];W[fd]WL[1029.882];B[ed]BL[1337.082];W[gc]WL[1019.197];B[ec]BL[1334.369];W[if]WL[1017.141];B[ke]BL[1332.853](;W[le]WL[856.928];B[jf]BL[1323.52];W[jg]WL[820.255];B[kg]BL[1319.992];W[jd]WL[811.917]C[JB: Aji keshi. Save it for a ko threat. He can't fix it without making a small move in gote. It is yours whenever you need it.];B[je]BL[1316.401];W[jh]WL[802.997];B[lc]BL[1310.482];W[ld]WL[797.736];B[kh]BL[1309.039](;W[lf]WL[793.475]C[Maybe I needed to try harder to connect my center stones];B[ji]BL[1307.635];W[kf]WL[772.655]C[Seems like I wasn't being cautious enough here. I made big profit on the top, but my stones in the center are in trouble now];B[ii]BL[1305.294];W[ig]WL[766.436];B[mi]BL[1303.769];W[kj]WL[720.568]C[Now I have to struggle to live
JB: This makes him strong. What does it do for you. Not much that I can see, except for it deprives you of a ko threat.];B[ik]BL[1299.14];W[ki]WL[716.541];B[mg]BL[1298.198];W[jo]WL[702.166];B[kp]BL[1294.164];W[li]WL[683.126];B[mh]BL[1292.139];W[jl]WL[674.33]C[It's hard to know how to play this kind of fight, if you see any good tesuji to live let me know!];B[jk]BL[1285.454];W[kk]WL[671.081];B[km]BL[1283.36](;W[jm]WL[659.927];B[lm]BL[1279.432];W[mn]WL[581.862];B[mm]BL[1265.569];W[nn]WL[578.7];B[on]BL[1264.441];W[oo]WL[572.427];B[mo]BL[1252.77];W[lo]WL[568.258];B[lq]BL[1240.602];W[om]WL[553.701];B[pn]BL[1237.726];W[ol]WL[549.792];B[pm]BL[1218.223];W[nl]WL[531.795]C[I save the middle, but my corner is in trouble now.];B[ml]BL[1216.879];W[mk]WL[527.28];B[qp]BL[1159.72]C[Hard to answer. Is the corner already dead?](;W[qr]WL[462.609]C[JB: Lets you get split with no compensation. See var];B[rr]BL[1151.718];W[ps]WL[394.263];B[qo]BL[1145.839];W[po]WL[378.264];B[rm]BL[1144.341];W[rs]WL[299.356];B[rq]BL[1123.08](;W[gl]WL[254.87]C[I tried to fight back for a long time, but nothing came up. From here on I don't really see a way to win. End of comments.
JB: It is not yet decided. A slightly more prudent play may allow you to invade much of his left side. See var];B[hm]BL[1115.412];W[hl]WL[249.951];B[il]BL[1112.657];W[im]WL[248.427];B[in]BL[1110.547];W[jn]WL[241.205];B[gj]BL[1107.272];W[hk]WL[218.504];B[hj]BL[1105.668];W[ij]WL[216.165];B[jj]BL[1104.11];W[hi]WL[214.587];B[gi]BL[1099.15];W[hn]WL[201.704];B[gm]BL[1097.714];W[gn]WL[199.862];B[fm]BL[1095.314];W[io]WL[196.839];B[pb]BL[1090.798];W[ob]WL[192.51];B[pc]BL[1081.286];W[oc]WL[180.706];B[ok]BL[1079.937];W[nk]WL[177.597];B[oj]BL[1073.909];W[nj]WL[174.742];B[oh]BL[1072.18];W[ni]WL[172.374];B[pg]BL[1069.068];W[oi]WL[165.24];B[pi]BL[1066.375];W[pk]WL[151.095];B[pj]BL[1064.225];W[bh]WL[113.707];B[ci]BL[1059.964];W[ds]WL[100.46];B[es]BL[1057.762];W[cs]WL[97.144];B[er]BL[1056.717];W[ip]WL[78.613];B[iq]BL[1053.839];W[of]WL[54.087];B[og]BL[1049.962];W[pf]WL[49.604];B[qf]BL[1048.949];W[pd]WL[47.697];B[qe]BL[1048.047];W[pa]WL[38.917];B[jb]BL[1045.041];W[kb]WL[34.085];B[hb]BL[1043.617];W[gb]WL[15.263];B[kc]BL[1042.549];W[la]WL[30]OW[4];B[lb]BL[1034.674];W[na]WL[30]OW[4];B[ka]BL[1033.125];W[ma]WL[30]OW[4];B[qb]BL[1024.208];W[mf]WL[30]OW[3];B[fb]BL[1021.387];W[ha]WL[30]OW[3];B[ia]BL[1012.514];W[ga]WL[30]OW[3];B[fa]BL[1010.29];W[hd]WL[30]OW[2];B[bm]BL[1000.24];W[bn]WL[30]OW[2];B[bi]BL[998.606];W[qa]WL[30]OW[2];B[ra]BL[995.768];W[oa]WL[30]OW[2];B[rc]BL[994.341];W[db]WL[30]OW[2];B[hh]BL[980.275];W[gg]WL[30]OW[2];B[fe]BL[977.813];W[nc]WL[30]OW[2];B[hg]BL[975.318];W[gf]WL[30]OW[2];B[ge]BL[967.769];W[hc]WL[30]OW[2];B[gh]BL[963.872];W[fg]WL[30]OW[2];B[fh]BL[960.311];W[ib]WL[30]OW[2];B[dm]BL[952.747];W[eg]WL[30]OW[2];B[eh]BL[950.62];W[cm]WL[30]OW[2];B[bl]BL[948.531];W[go]WL[30]OW[2];B[gp]BL[946.614];W[en]WL[30]OW[2];B[fn]BL[944.801];W[fo]WL[30]OW[2];B[ep]BL[943.445](;W[hp]WL[30]OW[2];B[bo]BL[941.335]C[greendemon [3k]: thansk
keewell [3k]: ty
])(;W[bo]))(;W[hm]C[JB: Just a hypothetical sequence...
END COMMENTS
];B[in];W[jn];B[im];W[il];B[hl];W[hk];B[gl];W[hn];B[io];W[ij];B[jj];W[hi]))(;W[qo]C[JB: Maybe gets a ko? Hard to say, and again I'm too lazy to read. But better than the game.](;B[pr];W[or];B[qr];W[po];B[rp];W[ps]C[Black has 1 big eye, but white has no eyes, it seems like there's now way for white ot win this];B[rm])(;B[qr];W[pr];B[po];W[rp];B[rq];W[sq])))(;W[il];B[hl];W[lm];B[im];W[jm];B[jn];W[kl];B[in];W[kn]C[only 1 eye]))(;W[ki];B[ji];W[ii];B[jj](;W[lh])(;W[li];B[lf];W[mf];B[mg]))(;W[ji]))(;W[je]C[I almost played this way, but it seemed to easy on black];B[jd];W[jf];B[kc];W[ld];B[lc];W[nc];B[lj]))(;W[kf]))(;W[id](;B[hd];W[hc];B[he];W[jc];B[gc];W[hb];B[fd];W[gb];B[fc];W[nk])(;B[jc](;W[jd];B[kc];W[lc];B[lb])(;W[kc];B[jd];W[je];B[hd];W[hc];B[ie];W[he];B[if]))))(;W[fd])(;W[gd])(;W[hd])(;W[hc]))(;W[qc]C[JB: I'm too lazy to check it out tactically, but it feels like it is good shape. And it is a corner.]))(;W[ch];B[bg];W[eh];B[bi])(;W[gd]))(;W[be]C[JB: If you really must go after that stone, this is probably the better way to do it. Keep in mind, however, that either way it is small, and any response by him tends to jeopardize D12.
Think big. Let him worry about his eyeless group while you play big moves elsewhere. ( or at G16 )]))(;W[fd])(;W[gd]))(;W[ee];B[cd];W[cc];B[cg];W[ef];B[ch]C[maybe something like this]))(;W[cd];B[de];W[fd]C[better?]))
EDIT: one last minute thought: 64 is probably better at G17. This leaves you more liberties, and has interesting aji at H18 and F18.