(;AB[rc]AB[qc]AB[pc]AB[oc]AB[nc]AB[pd]AB[pe]AB[qd]AB[re]AW[rd]AW[rf]AW[qf]AW[pf]AW[of]AW[ne]AW[nd]AW[od]AW[ob]AW[nb]AW[mc]AW[lc]AW[kc]AW[jc]AW[le]AB[qg]AB[qh]AB[qi]AB[qj]AW[pg]AW[ph]AW[pi]AB[pj]AB[qm]C[Life and Death problem. White to play.]AP[goproblems] (;W[ra];B[qa] (;W[qb];B[pb] (;W[pa];B[rb] (;W[qa];B[sb] (;W[sd];B[sa] (;W[mb];B[oa] (;W[qa];B[pa] (;W[se]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[qe]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[sf]C[In the real game white missed the T16 move and failed to kill.RIGHT])) (;W[se];B[qa]C[You let black live.]) (;W[qe];B[qa]C[You let black live.])) (;W[na];B[oa] (;W[qa];B[mb];W[pa];B[ma]C[You let black live.]) (;W[qe];B[mb]C[You let black live.]) (;W[se];B[mb]C[You let black live.]) (;W[lb];B[se]C[You let black live.]) (;W[mb];B[se]C[You let black live.]) (;W[ma];B[se]C[You let black live.]) (;W[la];B[se]C[You let black live.])) (;W[oa];B[mb]) (;W[ma];B[oa];W[qa];B[pa] (;W[qe]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[se]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[sf]C[In the real game white missed the T16 move and failed to kill.RIGHT])) (;W[lb];B[oa];W[qa];B[pa] (;W[qe]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[se]C[In the real game white missed the T16 move and failed to kill.RIGHT]) (;W[sf]C[In the real game white missed the T16 move and failed to kill.RIGHT])) (;W[qe];B[oa] (;W[qa];B[mb]C[You let black live.]) (;W[mb];B[qa]C[You let black live.]) (;W[ma];B[qa]C[You let black live.]) (;W[lb];B[qa]C[You let black live.])) (;W[se];B[oa] (;W[qa];B[mb]C[You let black live.]) (;W[mb];B[qa]C[You let black live.]) (;W[lb];B[qa]C[You let black live.]) (;W[ma];B[qa]C[You let black live.])) (;W[sf];B[oa] (;W[qa];B[mb]C[You let black live.]) (;W[mb];B[qa]C[You let black live.]) (;W[lb];B[qa]C[You let black live.]) (;W[ma];B[qa]C[You let black live.]))) (;W[oa];B[sd]C[You let black live.]) (;W[mb];B[sd]C[You let black live.]) (;W[ma];B[sd]C[You let black live.]) (;W[lb];B[sd]C[You let black live.])) (;W[sd];B[qa]C[You let black make a ko.]) (;W[sb] (;B[qa]C[You let black make a ko.]) (;B[sc]C[You let black get away with a ko.])) (;W[mb];B[qa]C[You let black make a ko.]) (;W[ma];B[qa]C[You let black make a ko.]) (;W[lb];B[qa]C[You let black make a ko.]) (;W[oa];B[qa]C[You let black make a ko.]) (;W[na];B[sb]C[You let black live.])) (;W[sd];B[rb]C[You let black live.])) (;W[sd];B[rb] (;W[pb];B[sc]C[You let black live.]) (;W[se];B[pb]C[You let black live.]) (;W[sc];B[se]C[You let black live.]) (;W[pa];B[sa]C[You let black live.]))) (;W[sd];B[ra] (;W[se];B[sc] (;W[sb];B[sf]C[You let black live.]) (;W[qe];B[pb]C[You let black live.]) (;W[sf];B[pb]C[You let black live.])) (;W[sb];B[sc]C[You let black live.]) (;W[qa];B[sc];W[rb];B[pa]C[You let black live.])) (;W[sf];B[sd];W[ra];B[rb] (;W[sb];B[qa]C[You let black live.]) (;W[qa];B[sb]C[You let black live.]) (;W[pb];B[sb]C[You let black live.]) (;W[pa];B[sb]C[You let black live.])) (;W[qa];B[pa] (;W[pb];B[ra];W[qb];B[rb]C[You fail to kill black.]) (;W[sd];B[sc];W[pb];B[ra];W[qb];B[rb]C[You fail to kill black.])) (;W[qb];B[pb];W[pa];B[ra]C[You let black live.]) (;W[qe];B[sd];W[ra];B[rb];W[sb];B[qa]C[You let black live.]) (;W[se];B[sd] (;W[ra];B[rb] (;W[qa];B[sb]C[You let black live.]) (;W[sb];B[qa]C[You let black live.])) (;W[sf];B[qe];W[ra];B[rb]C[You let black live.])))