Problem 16153 goproblems.com


Author	stefliew	Created	2012-06-11
Difficulty	22 kyu (history)	Source	N/A
AVG solve time	37 sec	Stars	4.6 (25 votes)
User attempts	3207 / 7706	Collections	Connect
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2012-06-11
Source	N/A
Stars	4.6 (25 votes)
Collections	Connect
Your attempts	N/A

(;AB[ap]AB[aq]AB[ar]AB[as]AB[fp]AB[fq]AB[fr]AW[eq]AW[dq]AW[cq]AW[bq]AW[cp]AW[co]AW[cn]AW[bn]AW[an]C[Black to connect the marked stones unconditionally.FORCE]TR[ap]TR[aq]TR[ar]TR[as]AP[goproblems] (;B[cs];W[ds]C[FORCE] (;B[dr]C[CHOICE] (;W[er]C[FORCE] (;B[es];W[cr]C[FORCE] (;B[ds]C[Black is connected.RIGHT]) (;B[bs];W[ds]C[Ko.]) (;B[br];W[ds]C[Ko.]) (;B[fs];W[ds]C[Ko.])) (;B[cr];W[es]) (;B[br];W[es]) (;B[bs];W[es])) (;W[cr]C[FORCE] (;B[es];W[er]C[FORCE] (;B[ds]C[Black is connected.RIGHT]) (;B[bs];W[ds]C[Ko.]) (;B[br];W[ds]C[Ko.]) (;B[fs];W[ds]C[Ko.])) (;B[bs];W[er]) (;B[er];W[bs]) (;B[br];W[er]))) (;B[cr];W[dr]) (;B[er];W[dr]) (;B[es];W[dr]) (;B[br];W[dr]) (;B[bs];W[dr])) (;B[ds];W[cs]C[FORCE] (;B[cr];W[es]C[FORCE] (;B[bs];W[er]) (;B[er];W[dr]) (;B[dr];W[er]) (;B[br];W[er]) (;B[fs];W[er])) (;B[bs];W[cr]) (;B[br];W[cr]) (;B[dr];W[cr]) (;B[es];W[cr]) (;B[er];W[cr])) (;B[es];W[cs]C[FORCE] (;B[er];W[cr]) (;B[ds];W[cr]) (;B[dr];W[cr]) (;B[cr];W[dr]C[FORCE] (;B[ds];W[br]) (;B[br];W[ds]) (;B[bs];W[ds]) (;B[er];W[ds])) (;B[bs];W[cr]) (;B[br];W[cr])) (;B[bs] (;W[ds]C[FORCE] (;B[br];W[dr]) (;B[cr];W[dr]) (;B[cs];W[dr]) (;B[es];W[dr]) (;B[er];W[dr]) (;B[dr];W[er]C[FORCE] (;B[cr];W[es]) (;B[cs];W[es]) (;B[br];W[es]) (;B[es];W[fs]))) (;W[dr]C[FORCE] (;B[ds];W[es]C[FORCE] (;B[er];W[cs]) (;B[cs];W[er]) (;B[cr];W[er]) (;B[br];W[er])) (;B[cr];W[ds]) (;B[cs];W[ds]) (;B[br];W[ds]) (;B[es];W[ds]) (;B[er];W[ds]))) (;B[er];W[dr] (;B[ds];W[cs] (;B[es];W[cr]) (;B[cr];W[es]) (;B[br];W[es]) (;B[bs];W[es])) (;B[es];W[ds]) (;B[cs];W[ds]) (;B[cr];W[ds]) (;B[br];W[ds]) (;B[bs];W[ds])) (;B[dr];W[er]C[FORCE] (;B[es];W[cs]C[FORCE] (;B[cr];W[br]C[FORCE] (;B[bs];W[ds]) (;B[ds];W[fs]) (;B[fs];W[ds])) (;B[ds];W[cr]) (;B[bs];W[cr]) (;B[br];W[cr])) (;B[ds];W[es]) (;B[cs];W[es]) (;B[cr];W[es]) (;B[br];W[es]) (;B[bs];W[es])) (;B[cr];W[er] (;B[dr];W[es]) (;B[ds];W[es]) (;B[cs];W[es]) (;B[bs];W[es]) (;B[br];W[es]) (;B[es];W[ds] (;B[fs];W[dr]) (;B[cs];W[fs]) (;B[bs];W[fs]) (;B[br];W[fs]) (;B[dr];W[fs]))) (;B[br];W[er]C[FORCE] (;B[dr];W[es]) (;B[ds];W[es]) (;B[cr];W[es]) (;B[cs];W[es]) (;B[es];W[ds]C[FORCE] (;B[dr];W[fs]) (;B[cr];W[fs]) (;B[fs];W[dr]) (;B[cs];W[fs]) (;B[bs];W[fs])) (;B[bs];W[es])))