(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[gp][jp][lp][pp][cq][eq][gq][jq][kq][fr][gr][hr][ir]AB[bo][go][io][cp][ep][fp][hp][kp][dq][fq][hq][iq][lq][nq][jr][kr]LB[lp:1]C[white ataris at 1. how should black respond?] (;B[mq]CR[mq]C[RIGHT simple and best. if white takes the stone, it's gote, and black is in no immediate danger along the bottom]) (;B[mp]CR[mp] ;W[lr]CR[lr] (;B[lo]CR[lo] ;W[ks]CR[ks]C[oops, white lives]) (;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[jo]CR[jo] ;W[mq]CR[mq]) (;B[ls]CR[ls] ;W[mq]CR[mq])) (;B[ko]CR[ko] ;W[lr]CR[lr] (;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[ls]CR[ls] ;W[mq]CR[mq]) (;B[jo]CR[jo] ;W[mq]CR[mq])) (;B[lr]CR[lr]C[not too bad, but N3 helps the O3 stone more and makes better shape]) (;B[jo]CR[jo] ;W[ko]CR[ko] (;B[mq]CR[mq]C[this is gote now]) (;B[lr]CR[lr]C[gote]) (;B[ip]CR[ip] ;W[kp]CR[kp] (;B[mq]CR[mq]C[gote]) (;B[mp]CR[mp] ;W[kn]CR[kn]C[black needs another move to fix M2. white has decent shape and can perhaps attack at F5.]) (;B[kn]CR[kn] ;W[lr]CR[lr] (;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[mr]CR[mr] ;W[mq]CR[mq])))) (;B[mr]CR[mr]C[this is good for eyeshape, but after White takes L4, it's easier for White to stop Black jumping into the center than if Black had played N3 originally.]) (;B[nr]CR[nr] ;W[lr]CR[lr] ;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[er]CR[er] ;W[lr]CR[lr]C[bad choice. white now lives]) (;B[np]CR[np] ;W[lr]CR[lr] ;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[pq]CR[pq] ;W[lr]CR[lr]C[white living is big]) (;B[pr]CR[pr] ;W[lr]CR[lr]C[white living is big]) (;B[lo]CR[lo] ;W[ko]CR[ko] (;B[mp]CR[mp] ;W[lr]CR[lr] (;B[mq]CR[mq] ;W[ks]CR[ks]) (;B[mr]CR[mr] ;W[mq]CR[mq])) (;B[mq]CR[mq]C[your original move did not help you])))