(;AB[qf]AB[qg]AB[qh]AB[pi]AB[oh]AB[pe]AB[pd]AB[pc]AW[qc]AW[qd]AW[qe]AW[rf]AW[rg]AW[rh]AW[qi]AW[qj]AW[og]TR[og]C[Whie attacks with the triangle stone. Defend in the best way you can.]AP[goproblems]
(;B[ng];W[of]C[Yes. Can you kill white stones now? :o)RIGHT]LB[ne:a])
(;B[of];W[ng];B[pg]C[Black´s shape is very bad.])
(;B[pf]C[Black could do something before.])
(;B[pg];W[of];B[pf]C[Bad shape for black!])
(;B[ph]C[Very bad shape that gives white more forcing moves.]TR[oe]TR[of]TR[nf]))