Problem	1261
Created	2002-01-13
Source	O Rissei vs Ryu Shikun, Kiseido 2002 Game 1
Rating

Difficulty	8 dan
Average Solve Time	80 secs
User Attempts	87 / 2269
Solve Ratio Rating	6 dan
	rating history

Things were looking a bit grim for Ryu at this stage of the first game of the Kisei title match. He thought he'd try this running battle, but it seems as if he missed a tactical response when he started this variation. What he really wanted to do was to hane at 1. But before he did, he read out a white counter that made it impossible, and with the path he was forced to choose he lost his attack on the white groups on the right side of the board. Interestingly, the 9-dans watching in the side room missed this white counter during the game due to a hasty analysis, and it wasn't until they heard Ryu Shikun muttering a certain shape (can't give it away here!) that they saw it. What was white's clever counter?

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[19]KM[5.50]TM[] PW[O Risei]PB[Ryu Shikun]AW[cb][nb][ob][dc][gc][pc][qc][rc][cd][dd][fd][ld][rd][ne][pe][df][of][pf][mg][ng][pg][nh][qh][rh][li][mi][ni][oj][pj][qj][rj][nk][ok][cl][kl][ll][pl][mm][nm][pm][jn][kn][ln][nn][pn][co][no][qo][dp][lp][op][pp][rp][fq][hq][ir]AB[bb][bc][cc][fc][lc][mc][nc][oc][bd][jd][od][pd][qd][me][oe][qe][re][bf][qf][kg][qg][rg][lh][mh][ph][ki][oi][pi][qi][ri][cj][mj][nj][kk][mk][qk][ml][nl][ql][lm][qm][mn][qn][ko][lo][mo][ro][ip][mp][np][qp][iq][nq][pq][qq][rq][jr]LB[ki:1]C[how to respond to 1? hint: around this area.]PL[W] (;W[kj]CR[kj] ;B[lk]CR[lk] (;W[jk]CR[jk] ;B[jl]CR[jl] (;W[ik]CR[ik] ;B[km]CR[km] (;W[im]CR[im] ;B[il]CR[il] (;W[hl]CR[hl] ;B[jj]CR[jj] (;W[lj]CR[lj] ;B[hk]CR[hk] (;W[ij]CR[ij] ;B[hm]CR[hm] (;W[kl]CR[kl] ;B[gl]CR[gl] (;W[jm]CR[jm] ;B[ll]CR[ll] ;W[ol]CR[ol]C[RIGHT invalidating black 1 -- he muttered 'Kosumi!']) (;W[ol]CR[ol] ;B[ll]CR[ll] ;W[jm]CR[jm]C[RIGHT invalidating black 1 -- he muttered 'Kosumi!'])) (;W[gl]CR[gl] ;B[in]CR[in] (;W[jm]CR[jm] ;B[jo]CR[jo]) (;W[jo]CR[jo] ;B[jm]CR[jm])) (;W[jm]CR[jm] ;B[kl]CR[kl] (;W[gl]CR[gl] ;B[in]CR[in] ;W[jo]CR[jo] ;B[jp]CR[jp]) (;W[ol]CR[ol] ;B[gl]CR[gl])) (;W[ol]CR[ol] ;B[kl]CR[kl] (;W[gl]CR[gl] ;B[in]CR[in]) (;W[jm]CR[jm] ;B[gl]CR[gl])) (;W[in]CR[in] ;B[gl]CR[gl])) (;W[kl]CR[kl] ;B[ij]CR[ij]) (;W[jm]CR[jm] ;B[ij]CR[ij]) (;W[ll]CR[ll] ;B[ij]CR[ij]) (;W[ol]CR[ol] ;B[ij]CR[ij])) (;W[kl]CR[kl] ;B[lj]CR[lj]C[the stones on top die]) (;W[ol]CR[ol] ;B[lj]CR[lj])) (;W[kl]CR[kl] ;B[hl]CR[hl]) (;W[jm]CR[jm] ;B[hl]CR[hl]) (;W[hm]CR[hm] ;B[hl]CR[hl]) (;W[hk]CR[hk] ;B[hl]CR[hl])) (;W[il]CR[il] ;B[jm]CR[jm] (;W[im]CR[im] ;B[in]CR[in]) (;W[in]CR[in] ;B[im]CR[im] (;W[hm]CR[hm] ;B[hn]LB[kl:A]CR[hn]C[please throw in at A] ;W[kl]CR[kl]C[FORCETHIS] ;B[ll]CR[ll] ;W[ho]CR[ho] ;B[gn]CR[gn] (;W[io]CR[io] ;B[hl]CR[hl] ;W[gm]CR[gm] ;B[jj]CR[jj] ;W[lj]CR[lj] ;B[hk]CR[hk] ;W[ij]CR[ij] ;B[fm]CR[fm]C[ladder]) (;W[ol]CR[ol] ;B[io]CR[io]) (;W[lj]CR[lj] ;B[io]CR[io])) (;W[hn]CR[hn] ;B[hm]CR[hm]) (;W[gm]CR[gm] ;B[hn]CR[hn]))) (;W[jm]CR[jm] ;B[il]CR[il]) (;W[hl]CR[hl] ;B[in]CR[in]) (;W[hm]CR[hm] ;B[in]CR[in])) (;W[km]CR[km] ;B[jj]CR[jj] (;W[ik]CR[ik] ;B[lj]CR[lj]) (;W[lj]CR[lj] ;B[ik]CR[ik]))) (;W[jj]CR[jj] ;B[jl]CR[jl] (;W[km]CR[km] ;B[jk]CR[jk]) (;W[jk]CR[jk] ;B[km]CR[km] (;W[il]CR[il] ;B[jm]CR[jm] (;W[im]CR[im] ;B[in]CR[in]) (;W[in]CR[in] ;B[im]CR[im] (;W[hm]CR[hm] ;B[hl]CR[hl] (;W[ik]CR[ik] ;B[hn]CR[hn] (;W[gm]CR[gm] ;B[io]CR[io]) (;W[ll]CR[ll] ;B[gm]CR[gm])) (;W[kl]CR[kl] ;B[ik]CR[ik])) (;W[hl]CR[hl] ;B[hn]CR[hn]))) (;W[jm]CR[jm] ;B[il]CR[il]) (;W[im]CR[im] ;B[il]CR[il]))) (;W[jl]CR[jl] ;B[jj]CR[jj] (;W[lj]CR[lj] ;B[jk]CR[jk]) (;W[jk]CR[jk] ;B[lj]CR[lj]))) (;W[lk]CR[lk] ;B[lj]CR[lj]) (;W[lj]CR[lj] ;B[lk]CR[lk] (;W[kj]CR[kj] ;B[jl]CR[jl] (;W[jk]CR[jk] ;B[km]CR[km] (;W[ik]CR[ik] ;B[in]CR[in]) (;W[jm]CR[jm] ;B[il]CR[il]) (;W[il]CR[il] ;B[ik]CR[ik] (;W[jj]CR[jj] ;B[im]CR[im] (;W[jm]CR[jm] ;B[kl]CR[kl]) (;W[hl]CR[hl] ;B[jm]CR[jm])) (;W[jm]CR[jm] ;B[jj]CR[jj]))) (;W[km]CR[km] ;B[jj]CR[jj])) (;W[jk]CR[jk] ;B[kj]CR[kj]) (;W[jl]CR[jl] ;B[kj]CR[kj])) (;W[jj]CR[jj] ;B[kj]CR[kj]) (;W[jk]CR[jk] ;B[kj]CR[kj]) (;W[ol]CR[ol] ;B[kj]CR[kj]) (;W[lg]CR[lg] ;B[kh]CR[kh]C[this helps black's position]) (;W[oh]CR[oh]C[NOTTHIS] ;B[sh]CR[sh]) (;W[jh]CR[jh] ;B[kh]CR[kh]C[this helps black]))