Problem	20621
Created	2015-10-23
Source
Rating

Difficulty	5.7 dan
Average Solve Time	155 secs
User Attempts	76 / 230
Solve Ratio Rating	5 kyu
	rating history

can white catch black's marked stones in a ladder? play N if you think not. otherwise, ladder away.

(;AB[rs]AB[sr]AB[sq]AB[sp]AB[qr]AB[nh]AB[lj]AB[kj]AB[jj]AB[ij]AB[hj]AB[jh]AB[ih]AB[hh]AB[jl]AB[co]AB[bn]AB[ck]AB[dm]AW[rr]AW[rq]AW[so]AW[ps]AW[os]AW[ii]AW[ji]AW[ki]AW[ik]AW[jk]AW[kk]AW[in]AW[io]AW[cm]AW[am]AW[al]AW[dp]AW[dq]AW[mf]AW[me]AW[gg]AW[gf]TR[rq]TR[rr]LB[dd:N]C[FORCE]AP[goproblems] (;B[rp];W[qq];B[pq];W[qp];B[qo];W[ml]AW[pp]AW[po]AW[oo]AW[on]AW[nn]AW[nm]AW[mm]AB[op]AB[no]AB[mn]AB[lm]AB[nl]AB[om]AB[pn];B[mk];W[ll];B[kl];W[lk];B[il];W[fm]AW[hk]AW[hl]AW[gl]AW[gm]AB[gk]AB[fl]AB[hm]AB[gn];B[em];W[en]AW[fn]AB[fo];B[eo];W[cn]AW[dn]AB[do];B[bm];W[cl];B[bl];W[dl];B[el];W[fi]AW[dk]AW[ek]AW[ej]AW[fj]AB[dj]AB[ei]AB[fk]AB[gj];B[fh];W[hi]AW[gi]AB[gh];B[li];W[kh];B[kg];W[mh]AW[lh]AB[lg];B[mg];W[qm]AW[mi]AW[ni]AW[nj]AW[oj]AW[ok]AW[pk]AW[pl]AW[ql]AB[mj]AB[nk]AB[ol]AB[pm]AB[oi]AB[pj]AB[qk]AB[rl];B[qn];W[rm] (;B[rn];W[sm] (;B[sl];W[sn];B[ro]C[RIGHT]) (;B[sn];W[ro])) (;B[sm];W[rn];B[ro];W[ss])) (;B[qq];W[rp]) (;B[dd]))