Problem 4707 goproblems.com


Author	tails	Created	2004-06-27
Difficulty	3 dan (history)	Source	NHK Igo-no-jikan 2004.06.27
AVG solve time	59 sec	Stars	3.92 (12 votes)
User attempts	660 / 3104	Collections	Corner based
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2004-06-27
Source	NHK Igo-no-jikan 2004.06.27
Stars	3.92 (12 votes)
Collections	Corner based
Your attempts	N/A

(;AB[br]AB[bp]AB[cq]AB[dq]AB[er]AW[fr]AW[eq]AW[fq]AW[gq]AW[cp]AW[dp]AB[co]AB[cn]AW[bo]AW[ap]AW[bn]AW[cm]AW[dm]AW[eo]C[black to live.]AP[goproblems] (;B[ds] (;W[ar] (;B[bq];W[aq] (;B[bs];W[cr] (;B[as];W[ao];B[bm]C[RIGHT]) (;B[ao];W[an] (;B[as]C[RIGHT]) (;B[bm];W[do];B[as]C[RIGHT])) (;B[bm];W[do] (;B[as]C[RIGHT]) (;B[ao];W[an];B[as]C[RIGHT]))) (;B[cr];W[bs]) (;B[ao];W[an] (;B[bs];W[cr] (;B[as]C[RIGHT]) (;B[bm];W[do];B[as]C[RIGHT])) (;B[bm];W[do] (;B[bs];W[cr];B[as]C[RIGHT]) (;B[am];W[dn])) (;B[cr];W[bs])) (;B[bm];W[do] (;B[bs];W[cr] (;B[as]C[RIGHT]) (;B[ao];W[an];B[as]C[RIGHT]) (;B[an];W[dn])) (;B[ao];W[an];B[bs];W[cr];B[as]C[RIGHT]))) (;B[bs];W[cr];B[bq];W[aq] (;B[as];W[ao];B[bm]C[RIGHT]) (;B[ao];W[an] (;B[as]C[RIGHT]) (;B[bm];W[do];B[as]C[RIGHT])) (;B[bm];W[do] (;B[as]C[RIGHT]) (;B[ao];W[an];B[as]C[RIGHT]))) (;B[cr];W[bs] (;B[bq];W[aq]) (;B[aq];W[bq]) (;B[bm];W[bq]) (;B[cs];W[bq])) (;B[ao];W[bq]) (;B[bm];W[bq]) (;B[aq];W[bq] (;B[cr];W[bs]) (;B[bs];W[cr]))) (;W[fs] (;B[bs]C[];W[dr] (;B[aq] (;W[cr];B[cs];W[bq]C[Ko for life.]) (;W[bq];B[cr];W[es];B[ar];W[dr];B[bp]C[Double ko (thanks to Norym for this path!)RIGHT])) (;B[cr];W[es];B[aq];W[bq];B[ar];W[dr];B[bp]C[Double ko.RIGHT])) (;B[ar];W[bs]) (;B[cr];W[es]))) (;B[cs];W[bq] (;B[dr];W[ar];B[es];W[bs]C[ko.]) (;B[ar];W[dr] (;B[es];W[cr]) (;B[cr];W[es])) (;B[es];W[dr] (;B[cr];W[ar]) (;B[ar];W[cr]))) (;B[bq];W[dr]) (;B[aq];W[bq]C[] (;B[bp]C[ko.]) (;B[cr];W[ar] (;B[ds];W[bs]) (;B[bs];W[ds])) (;B[ar];W[dr] (;B[cr];W[es]) (;B[bp];W[cr])) (;B[ds];W[ar] (;B[cr];W[bs]) (;B[bs];W[cr])) (;B[dr];W[ar] (;B[cs];W[es]) (;B[es];W[cs])) (;B[cs];W[ar] (;B[dr];W[es]) (;B[es];W[dr])) (;B[bs];W[ar]) (;B[es];W[ar])) (;B[ar];W[dr] (;B[cr];W[es];B[aq];W[bq]C[ko.]) (;B[aq];W[cr]) (;B[cs];W[bq] (;B[es];W[cr]) (;B[cr];W[es]))) (;B[bs];W[bq] (;B[ds];W[cr];B[dr];W[ar]) (;B[dr];W[ar] (;B[es];W[cs]) (;B[cs];W[es])) (;B[cr];W[ds] (;B[es];W[ar]) (;B[ar];W[es])) (;B[ar];W[dr])) (;B[cr];W[ar] (;B[ds];W[bs] (;B[bq];W[aq]) (;B[aq];W[bq])) (;B[aq];W[bq] (;B[ds];W[bs]) (;B[bs];W[ds])) (;B[bq];W[aq] (;B[ds];W[bs]) (;B[bs];W[ds];B[as];W[es] (;B[ao];W[bm]) (;B[bm];W[bl] (;B[ao];W[am]) (;B[an];W[am]) (;B[am];W[al];B[ao];W[an]))) (;B[ao];W[an])) (;B[bs];W[ds] (;B[aq];W[bq]) (;B[bq];W[aq] (;B[as];W[bm] (;B[ao];W[es]) (;B[es];W[ao])) (;B[ao];W[an]) (;B[es];W[bm])) (;B[es];W[bq])) (;B[es];W[bq] (;B[bs];W[ds]) (;B[ds];W[bs]))) (;B[dr];W[ar] (;B[cs];W[bq];B[es];W[bs]C[ko.]) (;B[bq];W[aq] (;B[cs];W[es];B[as];W[ao];B[bm];W[bs]C[ko.]) (;B[es];W[cs];B[bs];W[bm]) (;B[bs];W[bm])) (;B[es];W[cs] (;B[bq];W[aq];B[bs];W[bm]) (;B[bs];W[bq]) (;B[aq];W[bq])) (;B[bs];W[bq] (;B[es];W[cs]) (;B[cs];W[es]))) (;B[es];W[dr] (;B[cr];W[ar] (;B[bs];W[ds] (;B[bq];W[fs]) (;B[cs];W[bq]) (;B[aq];W[bq])) (;B[bq];W[aq] (;B[bs];W[ds];B[cs];W[bm]) (;B[ds];W[bs])) (;B[aq];W[bq]) (;B[ds];W[bs] (;B[bq];W[aq]) (;B[aq];W[bq]))) (;B[cs];W[bq];B[cr];W[ar]) (;B[bq];W[ds]) (;B[ds];W[ar] (;B[cr];W[bs] (;B[bq];W[aq]) (;B[aq];W[bq])) (;B[bq];W[aq] (;B[bs];W[cr] (;B[as];W[cs]) (;B[cs];W[bm])) (;B[cr];W[bs])) (;B[bs];W[cr] (;B[bq];W[aq] (;B[as];W[cs]) (;B[cs];W[bm])) (;B[cs];W[bq])) (;B[aq];W[bq];B[cr];W[bs])) (;B[aq];W[cr]) (;B[ar];W[cr]) (;B[bs];W[cr];B[bq];W[fs])))