(;AP[goproblems]AB[ca]AB[cb]AB[cc]AB[dc]AB[ec]AB[ed]AB[ee]AB[ef]AB[ff]AB[de]AB[cd]AW[db]AW[eb]AW[fc]AW[fd]AW[fe]AB[ge]AW[gf]AW[hf]AW[ie]AW[ic]AW[fg]AW[eg]AW[dg]AW[df]AW[ba]AW[bb]AW[bc]AW[be]AW[bd]AW[ce]C[Black to play.](;B[fb];W[gb](;B[fa](;W[ga](;B[gc];W[ea](;B[fb];W[fa](;B[gd];W[fb](;B[hb]C[Black captures everything.RIGHT])(;B[hc];W[hb])(;B[ha];W[hb]))(;B[hb];W[gd])(;B[hc];W[hb])(;B[da];W[dd]))(;B[gd];W[fb](;B[hb];W[hc])(;B[hc];W[hb]))(;B[hb];W[gd])(;B[da];W[fb]))(;B[gd];W[gc])(;B[da];W[ea])(;B[ea];W[da]))(;W[gc];B[da]C[Optimal play for both players.RIGHT]))(;B[gc];W[fa];B[gd];W[fb])(;B[gd];W[gc])(;B[da];W[fa])(;B[ea];W[fa])(;B[ga];W[fa]))(;B[gd];W[gb](;B[gc];W[fb])(;B[fb];W[gc]))(;B[gc];W[gb](;B[gd];W[fb])(;B[fb];W[fa];B[gd];W[fb]))(;B[gb];W[fb])(;B[da];W[fb])(;B[ea];W[fb])(;B[fa];W[fb])(;B[hb];W[fb]))