Problem	17172
Created	2013-02-21
Name	go game guru - hard problem week 7
Source	http://gogameguru.com/weekly-go-problems-week-7/
Rating

Difficulty	4.1 dan
Average Solve Time	44 secs
User Attempts	386 / 1049
Solve Ratio Rating	6 kyu
	rating history

Black to play

(;SZ[19]C[Black to play.http://gogameguru.com/]AW[bm]AW[cn]AW[en]AW[go]AW[ho]AW[hp]AW[cq]AW[eq]AW[fq]AW[gq]AW[cr]AW[er]AW[hr]AW[ir]AW[jr]AW[cs]AW[ds]AW[js]AB[ck]AB[bo]AB[cp]AB[dp]AB[ep]AB[fp]AB[gp]AB[dq]AB[hq]AB[iq]AB[jq]AB[kq]AB[dr]AB[kr]AB[bs]AB[ks]GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]SO[http://gogameguru.com/] (;B[gr];W[gs] (;B[es];W[fs];B[bq] (;W[fr]C[CHOICE];B[br]C[RIGHT]) (;W[br];B[ar];W[as];B[bn];W[cm];B[bs];W[es];B[hs]C[white shouldn't fight this ko.];W[as];B[is];W[aq];B[bp] (;W[an];B[ap];W[fo];B[hr];W[do];B[fr];W[eo];B[ar]C[RIGHT]) (;W[ap];B[ao];W[am];B[hr];W[fo];B[fr];W[do];B[ar];W[aq];B[ap];W[eo];B[ar]C[Now it'sRIGHT]))) (;B[bq];W[es];B[br]C[Alive, but not the best solution.RIGHT])) (;B[bq];W[br] (;B[ar];W[es] (;B[gs];W[gr] (;B[fs];W[hs]) (;B[hs];W[fs])) (;B[gr];W[gs])) (;B[gr];W[aq] (;B[ap];W[bp] (;B[fs];W[es];B[bq];W[gs] (;B[hs];W[bp];B[ao];W[bq] (;B[co];W[as]) (;B[as];W[co];B[is];W[bn])) (;B[ar];W[fr];B[bn];W[cm] (;B[an];W[co]) (;B[co];W[an]))) (;B[fr];W[es];B[bq];W[gs];B[ar];W[fs];B[bn];W[cm] (;B[co];W[an]) (;B[an];W[co]))) (;B[hs];W[bp]) (;B[fs];W[es] (;B[bp];W[hs];B[ap];W[ar]) (;B[hs];W[bp])) (;B[bp];W[gs])) (;B[es];W[fs];B[gr];W[hs])) (;B[fs];W[gs];B[bq];W[br];B[ar];W[es]) (;B[fr];W[gr]))