(;SZ[9]AW[ea]AW[bb]AW[eb]AW[gb]AW[hb]AW[bc]AW[dc]AW[ec]AW[hc]AW[ad]AW[bd]AW[cd]AW[fd]AW[gd]AW[hd]AW[be]AW[ce]AW[ge]AW[he]AW[ie]AW[hf]AW[hg]AW[hh]AW[hi]AB[fa]AB[cb]AB[fb]AB[cc]AB[fc]AB[gc]AB[dd]AB[ed]AB[ae]AB[de]AB[fe]AB[af]AB[bf]AB[cf]AB[ef]AB[ff]AB[gf]AB[cg]AB[gg]AB[gh]AB[gi]C[Black to play and win]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.50]PW[Blanco]PB[Negro]
(;B[da];W[ga]
(;B[ba];W[db]
(;B[ab];W[ca]C[WRONG])
(;B[ca];W[aa]C[WRONG])
(;B[aa];W[ca]))
(;B[ab];W[db]))
(;B[ba]
(;W[ga]
(;B[ab];W[db]
(;B[ac]C[CHOICERIGHT])
(;B[ca]C[RIGHT])
(;B[aa];W[ca]))
(;B[ca];W[da]
(;B[ab]C[RIGHT])
(;B[ac];W[ab])
(;B[aa];W[db]))
(;B[da];W[db]
(;B[ab];W[ca]C[WRONG])
(;B[ca];W[aa]C[WRONG])
(;B[aa];W[ca])))
(;W[ca]
(;B[da];W[ga]
(;B[ab]C[RIGHT])
(;B[ca];W[db]))
(;B[ab];W[db]))
(;W[ab]
(;B[ca];W[ga];B[aa]C[RIGHT])
(;B[db];W[ga];B[ca];W[da]C[WRONG])))
(;B[ga];W[ha]
(;B[ba];W[db]
(;B[ab];W[ca]C[WRONG])
(;B[ca];W[da]))
(;B[ca];W[ba];B[ab];W[da])
(;B[ab];W[ca]))
(;B[db];W[ga]
(;B[ba];W[da]
(;B[ab];W[ca]C[WRONG])
(;B[ca];W[aa]))
(;B[da];W[ca]C[WRONG])
(;B[ab];W[ca]))
(;B[ca]
(;W[ba]
(;B[ab];W[ga]
(;B[ac]C[RIGHT])
(;B[aa]C[RIGHT]))
(;B[db];W[da]C[WRONG])
(;B[da];W[db]C[WRONG])
(;B[aa];W[ab])
(;B[ac];W[ab]C[WRONG]))
(;W[ga];B[ba];W[da]
(;B[ab]C[RIGHT])
(;B[ac];W[ab])
(;B[aa];W[db])))
(;B[ab];W[ca]))