Problem 14782 goproblems.com


Author	Karen B	Created	2011-05-03
Difficulty	5 dan (history)	Source	"Get Strong at Life and Death." R. Bozulich. 1997. Kiseido. P57, N74.
AVG solve time	85 sec	Stars	3 (1 votes)
User attempts	118 / 418	Collections	Basic Shape
Genre	life and death	Your attempts	N/A
Similar problems
Created	2011-05-03
Source	"Get Strong at Life and Death." R. Bozulich. 1997. Kiseido. P57, N74.
Stars	3 (1 votes)
Collections	Basic Shape
Your attempts	N/A

(;AB[sb]AB[rc]AB[rd]AB[qd]AB[pd]AB[od]AB[nc]AB[mc]AB[kc]AW[nb]AW[oc]AW[pc]AW[qc]AW[rb]AW[ra]C[Black to play and make the best results: seki, ko, death, etc.FORCE]LB[sa:A]AP[goproblems] (;B[pb];W[pa] (;B[oa];W[qb];B[qa]C[Correct. The result is ko.RIGHT]) (;B[qb];W[ob]C[White lives.CHOICE]) (;B[ob];W[qb]C[White lives.CHOICE]) (;B[mb];W[na] (;B[ob];W[qb]C[White lives.CHOICE]) (;B[qb];W[ob]C[White lives.CHOICE]) (;B[oa];W[ob]C[White lives.CHOICE]) (;B[qa];W[qb]C[White lives.CHOICE]) (;B[sc];W[qb]C[White lives.CHOICE]) (;B[ma];W[qb]C[White lives.CHOICE]))) (;B[na];W[mb] (;B[ob];W[pb];B[pa]C[Correct. Black starts a ko.RIGHT]) (;B[oa];W[pb] (;B[pa];W[qa]C[White lives.CHOICE]) (;B[ma];W[lb] (;B[pa];W[qa]C[White lives.CHOICE]) (;B[sc];W[pa]C[White lives.CHOICE])) (;B[lb];W[ma] (;B[la];W[ob]C[White lives.CHOICE]) (;B[pa];W[qa]C[White lives.CHOICE])) (;B[sc];W[pa]C[White lives.CHOICE])) (;B[pa];W[ob] (;B[qb];W[pb] (;B[lb];W[qa]C[White lives.CHOICE]) (;B[qa];W[oa]LB[lb:a]LB[qa:b]C[White lives. a and b are miai.]) (;B[sc];W[qa]C[White lives.CHOICE])) (;B[oa];W[lb] (;B[sc];W[pb]) (;B[qb];W[pb]C[White lives.CHOICE]) (;B[qa];W[ma]C[White lives.CHOICE])) (;B[sc];W[oa] (;B[qb];W[pb];B[lb];W[ma];B[la];W[qa]C[White lives.CHOICE]) (;B[sa];W[qb]C[White lives.CHOICE])) (;B[lb];W[ma] (;B[oa];W[qa]C[White lives.CHOICE]) (;B[sc];W[oa]C[White lives.CHOICE]) (;B[qb];W[pb];B[sc];W[qa]C[White lives.CHOICE])) (;B[pb];W[oa]C[White lives.CHOICE]) (;B[qa];W[oa]C[White lives.CHOICE])) (;B[pb];W[ob];B[oa];W[pa]C[White lives.CHOICE]) (;B[qb];W[pb];B[pa];W[qa]C[White lives.CHOICE]) (;B[qa];W[pa] (;B[pb];W[qb]C[White lives.CHOICE]) (;B[oa];W[pb];B[sc];W[qb]C[White lives.CHOICE]))) (;B[mb];W[na]C[White lives in the comb formation.CHOICE]) (;B[ob];W[pb]C[White lives.CHOICE]) (;B[qb];W[pb]C[White lives.CHOICE]) (;B[qa];W[pa] (;B[mb];W[na]C[White lives.CHOICE]) (;B[pb];W[qb]C[White lives.CHOICE]) (;B[ob];W[pb]C[White lives.CHOICE])) (;B[ma];W[na] (;B[pa];W[pb];B[mb];W[qa]C[White lives.CHOICE]) (;B[pb];W[pa] (;B[ob];W[qb]C[White lives.CHOICE]) (;B[qb];W[ob]C[White lives.CHOICE]))) (;B[sc];W[pb] (;B[mb];W[na]C[White lives.CHOICE]) (;B[pa];W[oa]C[White lives.CHOICE]) (;B[oa];W[pa]C[White lives.CHOICE]) (;B[na];W[oa]C[White lives.CHOICE]) (;B[qa];W[pa]C[White lives.CHOICE]) (;B[ma];W[na]C[White lives.CHOICE])) (;B[pa];W[pb] (;B[oa];W[qa]C[White lives.CHOICE]) (;B[qa];W[oa]C[White lives.CHOICE]) (;B[na];W[ma] (;B[mb];W[oa] (;B[la];W[qa];B[na];W[ob]C[White lives.CHOICE]) (;B[qa];W[ka]C[White lives.CHOICE]) (;B[sc];W[ka]C[White lives.CHOICE])) (;B[ob];W[oa]C[White lives.CHOICE]) (;B[oa];W[mb];B[sc];W[qa]C[White lives.CHOICE]) (;B[qa];W[mb]C[White lives.CHOICE]) (;B[sc];W[mb] (;B[sa];W[oa]C[White lives.CHOICE]) (;B[qa];W[oa]C[White lives.CHOICE]))) (;B[sc];W[oa]C[White lives.CHOICE])) (;B[oa];W[pb] (;B[pa];W[qa]C[White lives.CHOICE]) (;B[qa];W[pa]C[White lives.CHOICE]) (;B[sc];W[na]LB[pa:a]LB[sa:b]C[White lives. a and b are miai.CHOICE]) (;B[na];W[mb] (;B[lb];W[ma] (;B[pa];W[qa]C[White lives.CHOICE]) (;B[qa];W[pa]C[White lives.CHOICE]) (;B[la];W[ob]C[White lives.CHOICE])) (;B[ma];W[lb]C[White lives.CHOICE] (;B[pa];W[qa]C[White lives.CHOICE]) (;B[sc];W[pa]C[White lives.CHOICE])) (;B[pa];W[qa]C[Whitle lives.CHOICE])) (;B[ob];W[na]C[White lives.CHOICE]) (;B[qb];W[mb];B[lb];W[na]C[White lives.CHOICE]) (;B[mb];W[na] (;B[ma];W[ob]C[White lives.CHOICE]) (;B[pa];W[qa]C[White lives.CHOICE]))))