(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[bm][cn][dn][bo][eo][fp][gp][bq][hq][iq][br][cr][dr][jr]AB[bp][cp][dq][eq][er]LB[gn:B][ap:A]C[does white need another move in the corner? if so, play at A. otherwise, tenuki at B.]PL[W] (;W[gn]CR[gn] ;B[aq]CR[aq]C[okay, now how to handle this?] (;W[ar]CR[ar] ;B[ap]CR[ap] (;W[ds]CR[ds] (;B[es]CR[es] ;W[bs]CR[bs]C[RIGHT CHOICE ]) (;B[bs]CR[bs] ;W[es]CR[es] ;B[fs]CR[fs] ;W[fr]CR[fr]C[RIGHT CHOICE])) (;W[es]CR[es] ;B[ds]CR[ds] (;W[cs]CR[cs] ;B[fs]CR[fs] (;W[ds]CR[ds] ;B[fr]CR[fr]) (;W[fr]CR[fr] ;B[ds]CR[ds]C[ko])) (;W[fs]CR[fs] ;B[gr]CR[gr] (;W[fr]CR[fr] ;B[fq]CR[fq] ;W[cs]CR[cs] ;B[gs]CR[gs] ;W[ds]CR[ds] ;B[gq]CR[gq]) (;W[gs]CR[gs] ;B[hs]CR[hs] ;W[cs]CR[cs] ;B[fr]CR[fr] ;W[ds]CR[ds] ;B[hr]CR[hr]) (;W[cs]CR[cs] ;B[fr]CR[fr] (;W[gs]CR[gs] ;B[hs]CR[hs] ;W[ds]CR[ds] ;B[hr]CR[hr]) (;W[ds]CR[ds] ;B[gs]CR[gs]))))) (;W[es]CR[es] ;B[ds]CR[ds] (;W[fs]CR[fs] ;B[gr]CR[gr] (;W[fr]CR[fr] ;B[fq]CR[fq] ;W[cs]CR[cs] ;B[gs]CR[gs] ;W[ds]CR[ds] ;B[gq]CR[gq]) (;W[cs]CR[cs] ;B[fr]CR[fr]) (;W[gs]CR[gs] ;B[hs]CR[hs] ;W[cs]CR[cs] ;B[fr]CR[fr] ;W[ds]CR[ds] ;B[hr]CR[hr])) (;W[cs]CR[cs] ;B[fs]CR[fs] (;W[fr]CR[fr] ;B[ds]CR[ds]C[ko]) (;W[ds]CR[ds] ;B[fr]CR[fr]))) (;W[ds]CR[ds] ;B[es]CR[es] (;W[ar]CR[ar] ;B[ap]CR[ap] ;W[bs]CR[bs]C[RIGHT]) (;W[bs]CR[bs] ;B[ar]CR[ar])) (;W[bs]CR[bs] ;B[ar]CR[ar]) (;W[dp]CR[dp]C[NOTTHIS]) (;W[cq]CR[cq]C[NOTTHIS])) (;W[ap]CR[ap]C[incorrect. this move is unnecessary.]))