invalid problem set
Problem | 19714 |
Created | 2015-05-03 |
Name | 019 - 123 |
Source | Yi Ch'ang-ho's Selected Life and Death Go Problems |
Rating | |
Difficulty | 9.4 kyu |
Average Solve Time | 31 secs |
User Attempts |
516 / 1425 |
Solve Ratio Rating | 6 kyu |
| rating history |
(;SZ[19]AW[pn]AW[qo]AW[op]AW[pp]AW[rp]AW[lq]AW[nq]AW[rq]AB[qp]AB[pq]AB[qq]AB[rr]C[Black to live]GE[life and death]DI[5k]DP[33]SO[marwin]CO[6]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[6.50]
(;B[ro];W[rn];B[sq];W[so]
(;B[qs]C[RIGHT])
(;B[or];W[nr]
(;B[ps]C[RIGHT])
(;B[qs]C[RIGHT])
(;B[pr];W[qs]))
(;B[sr];W[or];B[pr];W[ps])
(;B[rs];W[sr]))
(;B[sq];W[ro]
(;B[qs]C[black livesRIGHT])
(;B[sr];W[or]
(;B[pr];W[ps];B[qs];W[os])
(;B[qs];W[pr])
(;B[ps];W[pr]))
(;B[or]
(;W[sr]C[CHOICE];B[ss];W[sp];B[qs];W[sr])
(;W[nr]
(;B[qs]C[])
(;B[ps]C[])
(;B[qr];W[ps];B[os];W[sr])
(;B[pr];W[qs]
(;B[sr];W[rs])
(;B[rs];W[sr]))
(;B[rs];W[sr])
(;B[sr];W[qs];B[rs];W[os];B[ps];W[pr];B[qr];W[oq];B[ps];W[or])
(;B[ss];W[qs])))
(;B[ps];W[or]
(;B[pr];W[sr];B[ss];W[qs])
(;B[qs];W[pr]))
(;B[os];W[or];B[pr];W[qs])
(;B[pr];W[qs];B[nr];W[mr];B[ns];W[or]))
(;B[qs];W[sr]
(;B[pr];W[or];B[ss]C[ko])
(;B[or];W[nr]
(;B[pr];W[os];B[ss]C[ko])
(;B[ss];W[rs]C[]))
(;B[ss]C[ko]))
(;B[or];W[sr]
(;B[qs];W[nr];B[ss]C[ko];W[rs]C[])
(;B[qr];W[ps];B[nr];W[mr]))
(;B[sr];W[or]
(;B[pr];W[ps])
(;B[qs];W[pr])
(;B[ps];W[pr])))
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