(;AP[goproblems]AB[ar]AB[bs]AW[br]AW[bq]AW[bp]AW[ap]AW[cs]AW[dr]AB[bo]AB[co]AB[cp]AB[dq]AW[er]AB[fr]AB[eq]AB[es]AB[fs]AB[gq]AB[bm]C[White to live.](;W[aq];B[cr](;W[cq];B[ds]C[CHOICE](;W[as];B[cr](;W[dr]C[Very good.RIGHT])(;W[bs];B[dr]))(;W[cr];B[ao]))(;W[as];B[ds])(;W[ao];B[ds]))(;W[ds];B[cr])(;W[cq](;B[as];W[aq];B[as];W[ds])(;B[ds]C[CHOICE](;W[cr];B[as];W[aq];B[as])(;W[as];B[bs]C[Only ko. There is better.])))(;W[as];B[cq](;W[cr];B[bs](;W[aq]C[RIGHT])(;W[ao];B[as])(;W[ds];B[as]))(;W[ds];B[cr])(;W[ao];B[cr]))(;W[cr];B[as];W[aq];B[as]C[One eye only. White is dead. :-(])(;W[ao];B[as]))