(;AP[Sabaki:0.52.0]CA[UTF-8];AW[ed][fb][fc][fd][fe][gb][gd][hd][ib][ja][jc][jd][je][kc]AB[da][db][dd][df][eb][ec][ee][ef][ff][ge][gf][he][ie][if][jb][jf][kb][kd][ke][la][lc][lf][ma][mc][md]C[Black to play and kill the white group. (no ko)](;B[fa];W[hc](;B[ia];W[ha])(;B[id];W[ha])(;B[ic];W[id])(;B[ga];W[ha])(;B[ha];W[id]))(;B[ga];W[ha])(;B[ha];W[ia](;B[fa];W[hb])(;B[hc];W[hb])(;B[ic];W[id])(;B[id];W[ic](;B[fa];W[hb])(;B[ga];W[hb])(;B[hb];W[hc])(;B[hc];W[hb])))(;B[ia];W[ha])(;B[hb];W[hc])(;B[gc];W[hc])(;B[hc](;W[fa](;B[ha];W[ic](;B[ia]C[RIGHT])(;B[id];W[hb];B[ia]C[RIGHT])(;B[hb];W[id];B[ia]C[RIGHT]))(;B[ia];W[ha])(;B[ic];W[id](;B[hb];W[ha]C[ko])(;B[ha](;W[hb];B[ia]C[RIGHT])(;W[ia];B[hb]C[RIGHT])))(;B[hb](;W[ha](;B[ic];W[id];B[ia]C[Close, but only a ko.])(;B[id]C[RIGHT]))(;W[ic];B[id]C[RIGHT])(;W[id];B[ha]C[RIGHT]))(;B[id];W[ic](;B[ha];W[hb];B[ia]C[RIGHT])(;B[hb];W[ia](;B[ha]C[RIGHT])(;B[ka]C[RIGHT]))))(;W[hb];B[id];W[ic]C[RIGHT]))(;B[ic];W[hc](;B[id];W[ha])(;B[ha];W[id]))(;B[id](;W[hc](;B[fa];W[ha])(;B[ga];W[ic](;B[fa];W[ha])(;B[ha];W[fa])(;B[ia];W[ha]))(;B[hc];W[ha])(;B[ha];W[ia](;B[fa];W[hb])(;B[ga];W[hb])(;B[ic]C[Black captured 4 stones, but white is alive and can tenuki.])(;B[ka];W[ic]))(;B[ia];W[ha])(;B[ic];W[ha]))(;W[ic]C[This move is bad for white. This variation leaves the potential for black to still kill. Can you found how?](;B[hc]C[Right. This move by black will kill white.](;W[hb](;B[fa]C[white is dead.])(;B[ga];W[fa]C[oops. black almost killed white.])(;B[ha];W[ia]C[oops. black almost killed white.])(;B[ia]C[white is dead.]))(;W[fa];B[hb]C[white is dead.]))(;B[ha];W[ia](;B[fa];W[hb])(;B[ga];W[hb])(;B[hb];W[hc])(;B[gc];W[hb])(;B[hc];W[hb])))))