Problem 981 goproblems.com


Author	adum	Created	2001-08-08
Difficulty	1 dan (history)	Source	GZP middle 5
AVG solve time	50 sec	Stars	4 (8 votes)
User attempts	525 / 3352	Collections	GuanZiPu, Edge Surround Eye
Genre	tesuji	Your attempts	N/A
Similar problems
Created	2001-08-08
Source	GZP middle 5
Stars	4 (8 votes)
Collections	GuanZiPu, Edge Surround Eye
Your attempts	N/A

(;SZ[19]AW[gb]AW[kb]AW[fc]AW[jc]AW[kc]AW[nc]AW[dd]AW[jd]AW[ld]AW[md]AW[nd]AW[nf]AB[ib]AB[lb]AB[nb]AB[lc]AB[mc]AB[oc]AB[hd]AB[id]AB[kd]AB[pd]AB[je]AB[ke]AB[if]TR[kb]TR[jc]TR[kc]TR[jd]C[white to save the marked stones in the best way. ko is to be avoided.]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]RU[Japanese]KM[0.00]TM[]PL[W] (;W[ka] (;B[mb] (;W[ha];B[ia] (;W[ic];B[hc];W[hb]C[ seki (if black plays another move)RIGHT]) (;W[hc];B[ic]) (;W[hb];B[ic])) (;W[ic];B[hc] (;W[hb];B[ja]) (;W[ha];B[ja]) (;W[ia];B[ha];W[hb];B[ja])) (;W[hb] (;B[ic];W[ia];B[ja];W[jb];B[la]) (;B[ja] (;W[jb];B[ic];W[ia];B[la]) (;W[ic];B[hc]))) (;W[ia];B[ha] (;W[hb];B[ja] (;W[jb];B[ic]C[ko]) (;W[ic];B[hc])) (;W[ic];B[hc];W[hb];B[ja]) (;W[ja];B[hb]))) (;B[la];W[ma];B[mb];W[ob];B[na];W[oa])) (;W[mb];B[ma] (;W[ka];B[la] (;W[ha];B[ia];W[ic];B[hc];W[hb]C[gote seki, not best]) (;W[ia];B[ha];W[ic];B[hc];W[hb];B[ja]) (;W[ic];B[hc];W[ha];B[hb])) (;W[ja];B[la] (;W[ia];B[ha] (;W[hb];B[ic]) (;W[ic];B[hc];W[hb];B[ka])) (;W[ic];B[hc];W[ha];B[hb]) (;W[ha];B[jb] (;W[ia];B[ka]) (;W[ic];B[hc]))) (;W[ic];B[hc] (;W[ha];B[ka]) (;W[jb];B[ja])) (;W[ia];B[ha] (;W[hb];B[ja];W[ic];B[hc]) (;W[ic];B[hc];W[hb];B[ja])) (;W[ha];B[ia];W[ic];B[hc];W[hb];B[ka])) (;W[ic];B[hc] (;W[ka];B[ja] (;W[mb];B[ma]) (;W[la];B[mb] (;W[ob];B[jb]) (;W[hb];B[ma])) (;W[hb];B[la])) (;W[la];B[mb];W[hb];B[jb]) (;W[ja];B[jb]) (;W[hb];B[ka])) (;W[ia];B[ha] (;W[hb];B[ja];W[ic];B[hc]) (;W[ic];B[hc];W[hb];B[ja]) (;W[ja];B[hb])) (;W[ob];B[pb]C[this exchange doesn't help white]) (;W[la];B[mb] (;W[ha];B[jb] (;W[ic];B[hc]) (;W[ja];B[ic])) (;W[ic];B[hc];W[hb];B[jb]) (;W[ob];B[pb])) (;W[ja] (;B[jb] (;W[mb];B[ma];W[la];B[ka]C[2-step ko]) (;W[ka];B[ic];W[mb];B[ma]) (;W[la];B[mb];W[ob];B[ic])) (;B[la] (;W[ia];B[ha] (;W[hb];B[ic];W[ga];B[jb]) (;W[ic];B[hc];W[hb];B[ka])) (;W[ob];B[pb]) (;W[ma]))) (;W[hc];B[ic]) (;W[ha] (;B[ia];W[ic];B[hc] (;W[hb];B[ka]) (;W[la];B[mb];W[hb])) (;B[jb] (;W[ja];B[ic]) (;W[la];B[mb];W[ja];B[ic]) (;W[ic];B[hc]) (;W[ka];B[ic];W[mb];B[ma]))) (;W[jb];B[ic]) (;W[hb];B[jb];W[ka];B[ic]) (;W[ma];B[mb] (;W[ob];B[pb]) (;W[la];B[ob];W[ha];B[jb])))