(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AB[rq][qq][pq][or][nr][mq][np][mp][rp][qo][po][om][pl]AW[rr][qr][pr][oq][nq][op][oo][pp][qp][mn][pm][qm][rn]C[Black to play]
(;B[on]C[Neither ladder works];W[no])
(;B[no];W[on];B[nn];W[pn])
(;B[nn]C[However the net traps the white stones. This
is the correct play.]
(;W[on];B[pn])
(;W[no];B[mo]))
(;B[ro]C[Black can try connecting here to
capture the corner but
the corner works in White's favour, coupled with the weakest on the left.];W[pn]
(;B[sr];W[so]
(;B[ps];W[sq];B[sp];W[qn])
(;B[sq];W[rs];B[ps];W[qn];B[os];W[mr];B[lr];W[sn];B[ms];W[sp]))
(;B[on];W[no];B[ql];W[rl];B[rk];W[so];B[sl];W[sq])))
