Problem 2177 goproblems.com


Author	adum	Created	2003-04-28
Difficulty	6 dan (history)	Source	Hong Jansik vs Yi Setol
AVG solve time	49 sec	Stars	3.43 (7 votes)
User attempts	326 / 2395	Collections	Stories, Ladder, Pro Game
Genre	life and death	Your attempts	N/A
Similar problems
Created	2003-04-28
Source	Hong Jansik vs Yi Setol
Stars	3.43 (7 votes)
Collections	Stories, Ladder, Pro Game
Your attempts	N/A

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[0.00] PW[White]PB[Black]AW[bb][db][cc][dd][ce][de][cf][dg][eg][eh][fh][rk][ml][rl][sl][km][mm][pm][qm][rm][mn][nn][on][sn][co][po][qo][so][mp][pp][qp][dq][qq][qr][rr][rs]AB[cb][dc][ec][nc][fd][pd][df][ef][cg][fg][dh][ei][rj][ok][qk][nl][pl][lm][nm][om][pn][qn][rn][lo][mo][no][oo][ro][rp][iq][nq][oq][pq][rq][sq][sr]LB[ml:2][lm:1]C[black wedged at 1, white responded at 2. how to catch either these five white stones (and save the black corner) or capture the stones in the ladder in the upper-left?] (;B[gh]CR[gh] ;W[fi]CR[fi]C[does this ladder really work?] ;B[fj]CR[fj] ;W[gi]CR[gi] ;B[hi]CR[hi] ;W[gj]CR[gj] ;B[gk]CR[gk] ;W[hj]CR[hj] ;B[ij]CR[ij] ;W[hk]CR[hk] ;B[hl]CR[hl] ;W[ik]CR[ik] ;B[jk]CR[jk] ;W[il]CR[il] (;B[im]CR[im] ;W[jl]CR[jl] (;B[kl]CR[kl] ;W[jm]CR[jm] (;B[jn]CR[jn] ;W[kn]CR[kn] (;B[ln]CR[ln] ;W[ko]CR[ko] ;B[mk]CR[mk]C[RIGHT black eats the five white stones and gets the huge corner]) (;B[ko]CR[ko] ;W[ln]CR[ln] ;B[mk]CR[mk] ;W[ll]CR[ll] (;B[kk]CR[kk] ;W[ss]CR[ss]) (;B[lk]CR[lk] ;W[kk]CR[kk]))) (;B[kn]CR[kn] ;W[jn]CR[jn] (;B[mk]CR[mk] ;W[ss]CR[ss]) (;B[jo]CR[jo] ;W[in]CR[in]))) (;B[jm]CR[jm] ;W[kl]CR[kl] (;B[kn]CR[kn] ;W[ll]CR[ll]) (;B[ll]CR[ll] ;W[ln]CR[ln] ;B[lk]CR[lk] ;W[kn]CR[kn])) (;B[kn]CR[kn] ;W[ll]CR[ll])) (;B[jl]CR[jl] ;W[im]CR[im])) (;B[ll]CR[ll] ;W[mk]CR[mk] ;B[gh]CR[gh] ;W[fi]CR[fi] ;B[fj]CR[fj] ;W[gi]CR[gi] ;B[hi]CR[hi] ;W[gj]CR[gj] ;B[gk]CR[gk] ;W[hj]CR[hj] ;B[ij]CR[ij] ;W[hk]CR[hk] ;B[hl]CR[hl] ;W[ik]CR[ik] ;B[jk]CR[jk] ;W[il]CR[il] ;B[im]CR[im] ;W[jl]CR[jl] ;B[kl]CR[kl] ;W[jm]CR[jm] ;B[jn]CR[jn] ;W[kn]CR[kn] (;B[ln]CR[ln] ;W[ko]CR[ko] (;B[jo]CR[jo] ;W[kp]CR[kp]C[white escapes]) (;B[kp]CR[kp] ;W[jo]CR[jo]C[no way jose])) (;B[ko]CR[ko] ;W[ln]CR[ln]C[c'mon...])) (;B[kl]CR[kl] ;W[di]CR[di] ;B[mk]CR[mk] ;W[ss]CR[ss]) (;B[lk]CR[lk] ;W[di]CR[di] (;B[mk]CR[mk] ;W[ss]CR[ss]) (;B[ll]CR[ll] ;W[ss]CR[ss])) (;B[jm]CR[jm] ;W[di]CR[di] (;B[mk]CR[mk] ;W[ss]CR[ss]) (;B[ll]CR[ll] ;W[mk]CR[mk])) (;B[jl]CR[jl] ;W[di]CR[di] ;B[mk]CR[mk] ;W[ss]CR[ss]) (;B[mk]CR[mk] ;W[ll]CR[ll] (;B[kl]CR[kl] ;W[jl]CR[jl] (;B[kk]CR[kk] ;W[ln]CR[ln]) (;B[ln]CR[ln] ;W[kk]CR[kk]) (;B[gh]CR[gh] ;W[fi]CR[fi] ;B[fj]CR[fj] ;W[gi]CR[gi] ;B[hi]CR[hi] ;W[gj]CR[gj] ;B[gk]CR[gk] ;W[hj]CR[hj] ;B[ij]CR[ij] ;W[hk]CR[hk] ;B[hl]CR[hl] ;W[ik]CR[ik])) (;B[ln]CR[ln] ;W[kl]CR[kl]) (;B[gh]CR[gh] ;W[fi]CR[fi] ;B[fj]CR[fj] ;W[gi]CR[gi] ;B[hi]CR[hi] ;W[gj]CR[gj] ;B[gk]CR[gk] ;W[hj]CR[hj] ;B[ij]CR[ij] ;W[hk]CR[hk] ;B[hl]CR[hl] ;W[ik]CR[ik] ;B[jk]CR[jk] ;W[il]CR[il] ;B[im]CR[im] ;W[jl]CR[jl] ;B[jm]CR[jm] ;W[kl]CR[kl]) (;B[lk]CR[lk] ;W[kl]CR[kl])) (;B[fi]CR[fi] ;W[gh]CR[gh]) (;B[gi]CR[gi] ;W[di]CR[di]))