Problem	13970
Created	2010-09-22
Name	big eye
Source	personal DGS game
Rating

Difficulty	7 dan
Average Solve Time	81 secs
User Attempts	97 / 325
Solve Ratio Rating	4 kyu
	rating history

(;SZ[11]AB[db]AB[eb]AB[cc]AB[dc]AW[bd]AW[cd]AW[dd]AW[ed]AW[ec]AW[fb]AB[fc]AB[gc]AB[ic]AB[ge]AB[he]AW[cf]AB[ff]AB[ef]AB[df]AB[dg]AB[dh]AB[cg]AB[bg]AB[ah]AW[bh]AW[ch]AW[ci]AW[bi]AW[di]AW[dj]AW[aj]AB[bj]AB[bk]AB[ei]AB[ej]AB[fj]AB[gj]AB[hj]AB[hi]AB[gh]AB[hg]AB[ig]AB[ih]AB[jh]AB[ii]AW[gi]AW[fi]AW[eh]AW[eg]AW[fg]AW[gg]AW[gf]AW[hf]AW[if]AW[ie]AW[je]AW[jg]AW[kg]AW[kh]AW[ji]AW[jj]AW[ij]AB[ek]C[White to win the game -- Komi 6.5]AP[goproblems] (;W[dk] (;B[fh] (;W[bf]) (;W[fe] (;B[ag] (;W[bf]C[]) (;W[ai]C[Correct, the big eye in the corner give time to capture the black stone aboveRIGHT];B[fd];W[ee] (;B[be];W[ce];B[bf] (;W[ae]) (;W[bc];B[bb] (;W[ae];B[ac];W[ab];B[aa];W[ad];B[ab];W[ca] (;B[cb];W[gb];B[hc];W[ea]C[RIGHT]) (;B[da];W[cb];B[ba];W[cb];B[ca];W[gb];B[hc];W[ga];B[hb];W[ea];B[fa];W[hd];B[ha];W[gd]C[RIGHT])) (;W[ab];B[ca];W[ae];B[ad];W[ac];B[aa];W[ba]C[RIGHT]))) (;B[ce];W[be];B[bf];W[de];B[bc];W[cf]C[RIGHT])) (;W[hc];B[hd];W[hb];B[gb];W[id];B[gd]C[Not enough Black controls a large left half])) (;B[ce] (;W[be];B[bf] (;W[bc];B[bb];W[ab];B[ca] (;W[ba];B[aa];W[hd];B[gd];W[ba];B[fd];W[ee];B[aa];W[gb];B[hc];W[ba];B[ea];W[cb];B[ag];W[ai];B[bb];W[de];B[aa];W[cf];B[ac];W[af]C[RIGHT]) (;W[de];B[fd];W[ee];B[ae];W[cf];B[ad];W[ai];B[ce])) (;W[de];B[fd];W[ee];B[bc];W[af] (;B[cf]) (;B[ad];W[cf]C[Black does not have ko threat big enough, White winsRIGHT]))) (;W[ai];B[fd];W[ee];B[be]) (;W[de];B[bf];W[be];B[fd];W[ee];B[bc];W[af] (;B[cf]) (;B[ad];W[cf]C[Black does not have ko threat big enough, White winsRIGHT]))))) (;B[fe];W[fh];B[ag];W[ai]C[There is no threat big enough for white to answer. It will be a ko that White cannot lose. White wins the game.RIGHT];B[jc];W[id];B[hd];W[kd];B[kc];W[jd]C[RIGHT])) (;W[ck];B[ag]C[CHOICE];W[ai];B[fh];W[fe];B[dk]) (;W[fh];B[dk]) (;W[cj];B[dk]) (;W[ak];B[ai]) (;W[ai];B[dk];W[ag];B[bf];W[af];B[ae];W[ah];B[be]) (;W[fe];B[dk]C[Black win the capture race and the game]) (;W[ea];B[dk] (;W[gb];B[hb]) (;W[fa];B[gb]) (;W[bc];B[gb])) (;W[jc];B[dk] (;W[ib];B[hb]) (;W[jb];B[gb])) (;W[ce];B[dk] (;W[ai];B[ag];W[ck];B[cj]) (;W[ck];B[cj])) (;W[bf];B[dk] (;W[fe];B[cj]) (;W[af];B[cj])))