Problem 5925 goproblems.com


Author	santa c	Created	2005-02-09
Difficulty	7 dan (history)	Source	Remaking 4650
AVG solve time	35 sec	Stars	3.75 (4 votes)
User attempts	638 / 3388	Collections	Basic Shape, Corner based
Genre	life and death ⓒ	Your attempts	N/A
Similar problems
Created	2005-02-09
Source	Remaking 4650
Stars	3.75 (4 votes)
Collections	Basic Shape, Corner based
Your attempts	N/A

(;AB[bp]AB[cp]AB[dp]AB[cr]AB[ar]AW[bo]AW[co]AW[do]AW[ep]AW[eq]AW[dr]AW[fo]AW[hp]AW[bm]C[Can White regain the corner?]AP[goproblems] (;W[bq] (;B[cq] (;W[bs] (;B[cs] (;W[br]C[Well done! (bA4 doesn't make it seki because W can force bA3 by surrounding)RIGHT]) (;W[ap];B[br]C[:(]) (;W[aq];B[ap]C[:(])) (;B[br];W[cs]C[RIGHT])) (;W[aq];B[br]C[:(]) (;W[cs];B[bs]C[:(]) (;W[ap];B[br]C[:(]) (;W[br];B[bs]C[:(])) (;B[br];W[cq]C[RIGHT])) (;W[bs];B[dq] (;W[ds];B[er] (;W[fr];B[cs] (;W[es];B[br]C[:(]) (;W[br];B[es]C[:(])) (;W[cs];B[fr] (;W[br];B[bq];W[ap];B[es];W[cq]MA[cr]C[:(]) (;W[ap];B[br]C[:(]) (;W[gr];B[br]C[:(])) (;W[br];B[es] (;W[cs];B[bq];W[cq]MA[cr]C[:(]) (;W[fr];B[cs]C[:(]))) (;W[er];B[cs] (;W[br];B[bq]C[:(]) (;W[ap];B[bq]C[:(]) (;W[bq];B[br];W[ap];B[cq]C[:(])) (;W[es];B[cs] (;W[br];B[bq]C[:(]) (;W[bq];B[br];W[ap];B[cq]C[:(]) (;W[ap];B[bq]C[:(])) (;W[bq];B[br]C[:(]LB[ap:1]LB[cq:2]LB[cs:3]LB[er:4]LB[es:5]LB[fr:6]) (;W[br];B[er] (;W[bq];B[ds]C[:(]) (;W[ds];B[es] (;W[cs];B[bq];W[cq]MA[cr]C[:(]) (;W[bq];B[cs]C[:(])) (;W[fr];B[ds]C[:(]) (;W[cs];B[ds]C[:(])) (;W[cs];B[er] (;W[ds];B[fr] (;W[br];B[bq] (;W[ap];B[es];W[cq]MA[cr]C[:(]) (;W[gr];B[es];W[cq]MA[cr]C[:(])) (;W[ap];B[br]C[:(]) (;W[bq];B[br]C[:(])) (;W[br];B[ds]C[:(]) (;W[fr];B[ds]C[:(])) (;W[ap];B[bq]C[:(] (;W[cs];B[er];W[es];B[fr]C[:(]) (;W[er];B[cs]C[:(]) (;W[ds];B[cs]C[:(]) (;W[es];B[cs]C[:(]))) (;W[br];B[bs]C[:(]) (;W[cs];B[bs] (;W[cq];B[bq];W[br]C[:(]MA[cr]) (;W[bq];B[cq]C[:(]) (;W[dq];B[cq]C[:(]) (;W[aq];B[ap]C[:(]) (;W[ap];B[bq]C[:(])) (;W[ds];B[bs] (;W[cq];B[bq]C[:(]) (;W[bq];B[cq]C[:(]) (;W[aq];B[ap]C[:(])) (;W[dq];B[bs]C[:(]) (;W[cq];B[bq] (;W[dq];B[bs]C[:(]) (;W[bs];B[dq] (;W[cs];B[er];W[es];B[fr]C[:(]) (;W[ds];B[cs]C[:(]) (;W[es];B[cs]C[:(]) (;W[er];B[cs]C[:(]))) (;W[aq];B[ap] (;W[bq];B[br]C[:(]) (;W[cq];B[dq]C[:(]) (;W[br];B[bq]C[:(]) (;W[dq];B[cq]C[:(]) (;W[bs];B[cs] (;W[br];B[bq]C[:(]) (;W[bq];B[cq]C[:(]) (;W[cq];B[dq]C[:(])) (;W[cs];B[br] (;W[bs];B[dq] (;W[bq];B[er];W[es];B[fr]C[:(]) (;W[er];B[bq]C[:(]) (;W[es];B[bq]C[:(]) (;W[ds];B[bq]C[:(])) (;W[bq];B[bs]C[:(]) (;W[cq];B[dq]C[:(]) (;W[dq];B[bs]C[:(]))) (;W[ap];B[bq] (;W[dq];B[bs]C[:(]) (;W[bs];B[dq] (;W[cs];B[er];W[es];B[fr]C[:(]) (;W[er];B[cs]C[:(]) (;W[ds];B[cs]C[:(]) (;W[es];B[cs]C[:(]))))