(;AB[po]AB[qn]AB[qm]AB[pl]AB[ol]AB[qk]AB[oj]AW[pq]AW[qp]AW[pm]AW[om]AW[rl]AW[ql]AW[rk]AW[qi]TR[om]TR[pm]C[Capture the marked cutting stones.]AP[goproblems] (;B[nm];W[on]C[Good so far, but white doesn't see yet how you can capture him. Where is the tesuji that captures these troublesome cutting stones?CHOICE] (;B[mo] (;W[oo]C[White continues to resist strongly.CHOICE];B[op];W[np]C[Hint: Be careful on this next move!CHOICE] (;B[no]C[Well done! White is captured. White cannot capture P4 in a ladder because of O5.RIGHT]TR[oo]TR[on]TR[om]TR[pm]) (;B[pp];W[no]C[So close! White escapes ...]) (;B[oq];W[no]C[So close! White escapes.]) (;B[nq];W[oq]TR[nq]C[]MA[pp];B[pp];W[mq];B[no]TR[om]TR[on]TR[oo]TR[pm]MA[nq]C[Black captured the triangle stones, but the square move is a mistake, try to do tewari. Look back at wO4, if it goes bO5, wP3, bQ4, wN3, then it would be as if Black played O3 after that. Clearly a bad move.])) (;W[nn]C[For reference ...];B[mn]C[Black capures White easily...] (;W[oo];B[op]C[RIGHT]) (;W[nl];B[mm];W[ok];B[pk];W[pj];B[nk]C[RIGHT]) (;W[no];B[np]C[RIGHT])) (;W[no]C[For reference ....];B[np]C[];W[op];B[oo]C[Black captures White with a simple cross cut tesuji.RIGHT])) (;B[nn];W[oo]C[A loose ladder does not work here. White escapes.]) (;B[no];W[nn]C[The simplest net does not work here. White escapes. Please continue to playing if you wish to see how.];B[mn];W[mm] (;B[nl];W[mo];B[ln];W[oo]C[] (;B[op];W[np];B[pn];W[no]C[White escapes.]) (;B[np];W[op]C[White links up and escapes.])) (;B[oo];W[nl]C[White escapes.])) (;B[np];W[nn];B[mn];W[mm];B[nl];W[mo];B[ln];W[no]C[White escapes.]) (;B[oo];W[nn]C[Black does not have a ladder that will work against white. White escapes.]) (;B[mp];W[mo] (;B[no];W[oo];B[pp];W[qq];B[op];W[nn] (;B[mn];W[np]C[White escapes.]) (;B[np];W[mm]C[White escapes.])) (;B[oo];W[nn] (;B[mn];W[mm]C[White escapes.]) (;B[lo];W[ln]C[White escapes.])) (;B[nn];W[oo];B[pp];W[qq];B[no];W[op];B[oq];W[nq]C[White escapes.])) (;B[mn];W[no]C[White escapes.])) (;B[nl];W[nn]C[White escapes.]) (;B[mm];W[nn]C[White escapes.]) (;B[nn];W[nm];B[mm];W[nl] (;B[ml];W[nk];B[mj];W[ok];B[pk];W[pj]C[The loose ladder fails. White escapes.]) (;B[mk];W[nk];B[nj];W[ok];B[pk];W[pj]C[The loose ladder fails. White escapes.])))