(;AB[pq]AB[pk]AB[pf]AB[pd]AB[jp]AW[dp]AW[dd]AW[jd]AW[nc]AW[qo]LB[qo:1]C[Black to respond to white 1.]AP[goproblems]
(;B[op];W[rq]C[Incorrect, it is too weak, allowing white to happily slide under.])
(;B[qp];W[po]
(;B[np]C[Black launches a powerful attack on whites two stones.RIGHT])
(;B[op]C[RIGHT])))