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flag problem... (2) Well Constructed (1) Needs Fixing (1) Invalid Duplicate
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Problem 5552
Created 2004-11-16
Name tesuji
Source Get strong at Tesuji, 482.
Rating
Difficulty 2 dan
Average Solve Time 74 secs
User Attempts
334 / 2045
Solve Ratio Rating 1 dan
rating history
After playing go for almost 2 years and still being very week, I decided to solve some problems only in my mind, after memorizing the position. This is one of the first problems I memorized and I solved it after 3 days of thinking. I recommend this method, it helped me a bit.
(;SZ[19]AW[cn]AW[dn]AW[fn]AW[go]AW[bp]AW[bq]AW[fq]AW[br]AW[dr]AW[fr]AW[gr]AW[gs]AB[bo]AB[co]AB[cp]AB[dp]AB[ep]AB[fp]AB[gq]AB[hq]AB[cr]AB[hr]C[Black to catch the 4 white stones.]TR[fq]TR[fr]TR[gr]TR[gs]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[6.50]
(;B[es]
(;W[er]C[]
(;B[cq];W[cs];B[ds]C[White dies.RIGHT])
(;B[ds];W[cq])
(;B[cs];W[cq]))
(;W[ds]C[]
(;B[er]
(;W[eq]C[CHOICE]
(;B[cs]
(;W[dq]C[CHOICE];B[cq]C[White dies.RIGHT])
(;W[cq]C[CHOICE];B[dq]C[White dies.RIGHT]))
(;B[dq];W[fs]))
(;W[dq]C[CHOICE];B[cq]C[White dies.RIGHT])
(;W[cq]
(;B[dq]C[RIGHT])
(;B[eq]C[RIGHT])))
(;B[eq];W[er]
(;B[cs];W[cq])
(;B[cq];W[cs]))
(;B[cs];W[cq]
(;B[er]
(;W[dq]C[CHOICE];B[eq]C[White lives but looses the 4 stones. RIGHT])
(;W[eq]C[];B[dq]C[White dies. RIGHT]))
(;B[dq];W[er])))
(;W[dq]C[]
(;B[cq];W[cs];B[ds]C[. White dies.RIGHT])
(;B[cs];W[cq])
(;B[ds];W[cq])
(;B[er];W[eq];B[cq];W[cs])
(;B[eq];W[er]
(;B[cq];W[cs];B[ds]C[White dies. RIGHT])
(;B[cs];W[cq])))
(;W[cq]C[CHOICE]
(;B[er];W[eq]
(;B[dq]
(;W[cs]C[CHOICE];B[hs]C[White lives but looses the 4 stones. RIGHT])
(;W[fs]C[];B[hs]C[White dies.RIGHT])
(;W[ds]C[];B[cs]C[White dies.RIGHT]))
(;B[ds];W[dq])
(;B[cs];W[dq]))
(;B[eq];W[er])
(;B[dq]
(;W[er]C[CHOICE])
(;W[cs]C[CHOICE]))
(;B[cs];W[er]))
(;W[cs]C[CHOICE]
(;B[er];W[eq];B[dq];W[cq];B[hs]C[White lives but looses the 4 stones.RIGHT])
(;B[ds];W[cq]
(;B[er];W[eq])
(;B[eq];W[er]))
(;B[dq];W[er]
(;B[ds];W[cq])
(;B[cq];W[ds]))))
(;B[er];W[eq]
(;B[dq];W[es]
(;B[cs];W[cq])
(;B[cq];W[cs]))
(;B[ds];W[es]
(;B[cs];W[cq])
(;B[cq];W[cs])
(;B[dq];W[cs]))
(;B[cq];W[cs]
(;B[es];W[dq])
(;B[dq];W[es]))
(;B[cs];W[cq]
(;B[es];W[bs])
(;B[dq];W[es]))
(;B[es];W[dq]
(;B[cq];W[cs])
(;B[cs];W[cq])))
(;B[eq];W[er]
(;B[cs];W[cq])
(;B[cq];W[cs]))
(;B[dq];W[er]
(;B[cq];W[cs])
(;B[cs];W[cq]))
(;B[ds];W[es];B[cs];W[cq])
(;B[cq];W[cs]
(;B[er];W[eq];B[es];W[ds])
(;B[es];W[ds];B[er];W[eq]))
(;B[cs];W[cq]
(;B[ds];W[es])
(;B[er];W[eq]
(;B[dq];W[es])
(;B[es];W[dq]))
(;B[dq];W[er])
(;B[es];W[er])))
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