Problem 5389 goproblems.com


Author	MrMoto	Created	2004-11-02
Difficulty	7 dan (history)	Source	MrMoto vs. Grog on KGS
AVG solve time	82 sec	Stars	4.5 (4 votes)
User attempts	212 / 1851	Collections	9*9 games
Genre	tesuji	Your attempts	N/A
Similar problems
Created	2004-11-02
Source	MrMoto vs. Grog on KGS
Stars	4.5 (4 votes)
Collections	9*9 games
Your attempts	N/A

(;SZ[9]AW[ba]AW[cb]AW[db]AW[ac]AW[bc]AW[cc]AW[ec]AW[hc]AW[cd]AW[ed]AW[fe]AW[ff]AW[gf]AW[cg]AW[eg]AB[da]AB[ab]AB[eb]AB[fb]AB[dc]AB[bd]AB[dd]AB[gd]AB[hd]AB[ae]AB[ce]AB[de]AB[bf]AB[cf]AB[df]AB[ef]AB[bg]LB[hc:A]LB[hd:B]C[The last two moves were A and B. White must now find a way to win the game.]AB[dg]AW[ch]AW[dh]AW[fh]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]PW[White]PB[Black]PL[W] (;W[ea];B[fa] (;W[bh];B[ad] (;W[ag];B[ea] (;W[ah];B[ca] (;W[gc];B[fc];W[fd];B[gb];W[hb];B[bb];W[ha]C[A solid victory for white! :DRIGHT]) (;W[fc];B[gc];W[gb];B[bb];W[hb];B[ic])) (;W[fc];B[gc] (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic]) (;W[gb];B[hb];W[ah]C[RIGHT])) (;W[gc];B[fc] (;W[fd];B[hb] (;W[gb];B[ga] (;W[ah]C[];B[ic];W[af]C[:)RIGHT]) (;W[ca];B[ic])) (;W[ah];B[ca] (;W[gb];B[bb] (;W[ha];B[ib];W[ic];B[id]) (;W[ib];B[ha];W[ic];B[id]) (;W[ic];B[id])) (;W[ic];B[id]))) (;W[ah];B[ca];W[fd];B[hb] (;W[gb];B[bb] (;W[ib];B[ha];W[ic];B[id]) (;W[ha];B[ib];W[ic];B[id]) (;W[ic];B[id])) (;W[ic];B[id]))) (;W[gb];B[fc])) (;W[ah];B[ag] (;W[gc];B[fc];W[fd];B[hb]) (;W[fc];B[gc]) (;W[gb];B[gc];W[hb];B[fc])) (;W[gc];B[ea] (;W[fc]C[:)RIGHT]) (;W[gb]C[:)RIGHT]) (;W[ag];B[fc] (;W[fd];B[hb] (;W[ah];B[ca] (;W[gb];B[bb] (;W[ha];B[ib];W[ic];B[id]) (;W[ib];B[ha];W[ic];B[id]) (;W[ic];B[id])) (;W[ic];B[id])) (;W[gb];B[ga] (;W[ah];B[ic];W[af]C[:)RIGHT]) (;W[ca];B[ic]))) (;W[ah]C[Not good enough. (this is the same as another variation ... explore for yourself)];B[ca];W[fd];B[hb] (;W[gb];B[bb] (;W[ib];B[ha];W[ic];B[id]) (;W[ha];B[ib];W[ic];B[id]) (;W[ic];B[id])) (;W[ic];B[id]))) (;W[ah];B[ag] (;W[fc]C[:)RIGHT]) (;W[gb]C[:)RIGHT]))) (;W[fc];B[gc];W[gb];B[hb] (;W[ah];B[ag]) (;W[ag];B[ga];W[ah]C[:)RIGHT])) (;W[gb];B[fc])) (;W[gc];B[fc];W[fd];B[hb] (;W[gb];B[ga] (;W[bh];B[ad] (;W[ag];B[ic];W[ah]C[:)RIGHT]) (;W[ah];B[ag])) (;W[ic];B[ad];W[ib];B[ha];W[ca];B[id])) (;W[ic];B[gb];W[bh];B[ad] (;W[ag];B[ea]) (;W[ah];B[ag]))) (;W[fc];B[gc] (;W[gb];B[hb];W[bh];B[ad] (;W[ag];B[ga];W[ah]C[RIGHT]) (;W[ah];B[ag])) (;W[bh];B[ad] (;W[ah];B[ag]) (;W[ag];B[ea] (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic]) (;W[gb];B[hb];W[ah]C[:)RIGHT])) (;W[gb];B[hb] (;W[ag];B[ga];W[ah]C[RIGHT]) (;W[ah];B[ag])))) (;W[gb];B[fc])) (;W[bh];B[ad] (;W[ag];B[ea] (;W[ah];B[ca] (;W[gb];B[fc]) (;W[gc];B[fc];W[fd];B[gb];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko]) (;W[fc];B[gc];W[gb];B[bb];W[hb];B[ic])) (;W[gc];B[fc] (;W[fd];B[gb] (;W[hb];B[ha] (;W[ga];B[fa] (;W[ah]C[RIGHT]) (;W[ca]C[RIGHT])) (;W[fa];B[ga];W[ah];B[ca]) (;W[ic];B[ga]) (;W[ib];B[ga];W[id];B[ie]C[black can get a ko]) (;W[ah];B[ca];W[ga];B[bb]C[black can get a ko])) (;W[ah];B[ca];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko])) (;W[ah];B[ca];W[fd];B[gb];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko])) (;W[fc];B[gc] (;W[gb];B[hb];W[ah];B[ga];W[af]C[RIGHT]) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic])) (;W[gb];B[fc])) (;W[ah];B[ag]) (;W[gb];B[fc]) (;W[fc];B[gc] (;W[gb];B[hb] (;W[ga];B[ha] (;W[ah];B[ag]) (;W[ag];B[fa];W[ah]C[RIGHT])) (;W[ah];B[ag]) (;W[ag];B[ga];W[ah]C[RIGHT])) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[gb];B[hb] (;W[ah]C[RIGHT];B[ga];W[af]C[RIGHT]) (;W[ga];B[ha];W[ah]C[RIGHT])) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic])) (;W[ea];B[fa] (;W[gb];B[hb] (;W[ah];B[ag]) (;W[ag];B[ga];W[ah]C[RIGHT])) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[gb];B[hb];W[ah]C[RIGHT]) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic])))) (;W[gc];B[fc] (;W[fd];B[gb] (;W[hb];B[ha] (;W[ag];B[ea];W[ga];B[fa];W[ah]C[RIGHT]) (;W[ea];B[fa] (;W[ah];B[ag]) (;W[ag];B[ic];W[ah]C[RIGHT])) (;W[ah]) (;W[fa];B[ga] (;W[ah];B[ag]) (;W[ag];B[ea];W[ah];B[ca])) (;W[ga];B[fa] (;W[ah];B[ag]) (;W[ag];B[ib];W[ah]C[RIGHT]))) (;W[ag];B[ea] (;W[hb];B[ha]C[];W[ga];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ca];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko]))) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[fd];B[gb] (;W[hb];B[ha]C[];W[ga];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ca];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko])) (;W[ah];B[ca];W[fd];B[gb];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko])))) (;W[gc];B[fc] (;W[fd];B[gb] (;W[hb];B[ha] (;W[bh];B[ad] (;W[ag];B[ea];W[ga];B[fa];W[ah]C[RIGHT]) (;W[ea];B[fa] (;W[ah];B[ag]) (;W[ag];B[ic];W[ah]C[RIGHT])) (;W[ah];B[ag]) (;W[fa];B[ga] (;W[ah];B[ag]) (;W[ag];B[ea];W[ah];B[ca])) (;W[ga];B[fa] (;W[ah];B[ag]) (;W[ag];B[ib];W[ah]C[RIGHT]))) (;W[ea];B[fa];W[bh];B[ad];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ga];B[fa];W[bh];B[ad];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT])) (;W[ea];B[fa] (;W[hb];B[ha];W[bh];B[ad];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[bh];B[ad] (;W[ag];B[ea];W[hb]C[RIGHT];B[ha];W[ah]C[RIGHT]) (;W[ah];B[ag]))) (;W[bh];B[ad] (;W[ag];B[ea] (;W[hb];B[ha] (;W[ga];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ca];W[ga]C[black can get a ko];B[bb]C[black can get a ko])) (;W[ah];B[ca];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko])) (;W[ah];B[ag]) (;W[ea];B[fa] (;W[hb];B[ha];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[ah];B[ca];W[hb]C[RIGHT];B[bb];W[ha]C[A solid victory for white! :DRIGHT]) (;W[hb];B[ha];W[ah]C[RIGHT]))) (;W[hb];B[ha] (;W[ea];B[fa];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ga];B[fa];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ag];B[ea] (;W[ah];B[ca];W[ga]C[black can get a ko];B[bb]C[black can get a ko]) (;W[ga];B[fa];W[ah]C[RIGHT])) (;W[ah];B[ag])))) (;W[bh];B[ad] (;W[ag];B[ea];W[fd];B[gb];W[hb];B[ha] (;W[ga];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ca];W[ga]C[black can get a ko];B[bb]C[black can get a ko])) (;W[ah];B[ag]) (;W[fd];B[gb] (;W[hb];B[ha] (;W[ea];B[fa];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ga];B[fa];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[ah];B[ca];W[ga]C[black can get a ko];B[bb]C[black can get a ko]) (;W[ga];B[fa];W[ah]C[RIGHT]))) (;W[ah];B[ag]) (;W[ag];B[ea] (;W[ah];B[ca];W[hb];B[ha]C[black can get a ko];W[ga]C[black can get a ko]) (;W[hb];B[ha] (;W[ga];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ca];W[ga]C[black can get a ko];B[bb]C[black can get a ko]))) (;W[ea];B[fa] (;W[hb];B[ha];W[ag]C[RIGHT];B[ic];W[ah]C[RIGHT]) (;W[ah];B[ag]) (;W[ag];B[ea];W[hb];B[ha];W[ah]C[RIGHT]))))) (;W[fc];B[gc] (;W[gb];B[hb] (;W[bh];B[ad] (;W[ah];B[ag]) (;W[ag];B[ga];W[ah]C[RIGHT])) (;W[ga];B[ha];W[bh];B[ad] (;W[ag];B[fa];W[ah]C[RIGHT]) (;W[ah];B[ag]) (;W[fa];B[ea];W[ag];B[ca]) (;W[ea];B[fa];W[ag];B[ea];W[ah];B[ca]) (;W[ca];B[ag] (;W[ea];B[fa]) (;W[fa];B[ea])))) (;W[bh];B[ad] (;W[ag];B[ea] (;W[gb];B[hb];W[ah]C[RIGHT];B[ga];W[af]C[RIGHT]) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic])) (;W[ea];B[fa] (;W[gb];B[hb];W[ag];B[ga];W[ah]C[RIGHT]) (;W[ag];B[ea] (;W[gb];B[hb];W[ah]C[RIGHT]) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic]))) (;W[gb];B[hb] (;W[ag];B[ga];W[ah]C[RIGHT]) (;W[ga];B[ha];W[ag];B[fa];W[ah]C[RIGHT]))) (;W[ea];B[fa] (;W[gb];B[hb];W[bh];B[ad];W[ag];B[ga];W[ah]C[RIGHT]) (;W[bh];B[ad] (;W[ag];B[ea] (;W[gb];B[hb];W[ah]C[RIGHT]) (;W[ah];B[ca];W[gb];B[bb];W[hb];B[ic])) (;W[gb];B[hb];W[ag];B[ga];W[ah]C[RIGHT])))) (;W[gb];B[fc]) (;W[ag];B[bh] (;W[ah];B[bi]) (;W[bi];B[ah])) (;W[ad];B[bh]))