(;C[Do you know ladder?]AB[qp]AB[pq]AB[oq]AB[np]AW[op]AW[pp]AW[rl]AW[ll]AP[goproblems] (;B[oo];W[po];B[pn];W[qo];B[ro];W[qn];B[qm];W[rn] (;B[rm]C[RIGHT]) (;B[sn];W[rm])) (;B[po];W[oo];B[on];W[no];B[mo];W[nn];B[nm];W[mn];B[ln];W[mm];B[ml];W[lm]) (;B[pn];W[oo];B[nn];W[no];B[mo];W[mp];B[on];W[nq];B[po];W[np];B[lp];W[lo];B[mn];W[lq];B[kp];W[kq];B[nr];W[mq];B[jp];W[jq];B[ip];W[iq];B[hq];W[hr] (;B[gr];W[gq];B[hp];W[fr];B[ir];W[gs];B[jr];W[kr]) (;B[gq];W[gr])))