(;AW[ab]AW[bc]AW[cc]AW[dd]AW[de]AW[bf]AW[cf]AW[df]AB[db]AB[dc]AB[ad]AB[bd]AB[cd]AB[ce]C[Black to kill white in the corner] (;B[bb];W[cb];B[ba];W[ca];B[ac];W[aa] (;B[bb]C[Stones are caughtCHOICERIGHT]) (;B[ba]C[Stones are caughtCHOICERIGHT]) (;B[da];W[ae];B[bb];W[be]C[White is alive ;-)])) (;B[cb];W[bb] (;B[ba];W[ae]C[White is alive ;-)]) (;B[ac];W[ae]C[White is alive ;-)];B[ba];W[be]C[White is alive ;-)])) (;B[ca];W[bb];B[ba];W[ae];B[aa];W[be]C[White is alive ;-)]) (;B[ba];W[bb] (;B[cb];W[ae]C[White is alive ;-)]) (;B[ac];W[ae];B[cb];W[be]C[White is alive ;-)])) (;B[ac];W[bb];B[cb];W[ae];B[ba];W[be]C[White is alive ;-)]))