(;AP[goproblems]AB[aq]AB[bq]AB[cr]AB[dr]AW[er]AW[eq]AW[eo]AW[cq]AW[cp]AW[bp]C[Black's move, you need to survive as a group in the corner](;B[bs];W[ds](;B[ar];W[es];B[cs]C[RIGHT])(;B[dq];W[ar])(;B[ap];W[ar])(;B[cs];W[ar])(;B[dp];W[ar]))(;B[ar];W[bs])(;B[br];W[ds](;B[as];W[cs])(;B[cs];W[as]))(;B[ds];W[bs](;B[as];W[ar])(;B[br];W[as]))(;B[ap];W[bs])(;B[dq];W[bs])(;B[es];W[bs]))