invalid problem set
Problem | 1306 |
Created | 2002-01-29 |
Source | |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 41 secs |
User Attempts |
457 / 3277 |
Solve Ratio Rating | 2 dan |
| rating history |
Warning: 1000 year Ko is prefered over 2 step Ko in this problem.
(
;
FF[4]
GM[1]
SZ[19]
AP[Jago:Version 4.28]
AB[bd][cd][dd][dc][db][ae][ea][ba]
AW[bg][be][ce][de][ee][ed][ec][eb][gb][bb]
C[If I were a carpenter ... (12)]
GN[temp]
(
;
W[bc]
(
;
B[ad]
(
;
W[da]
;
B[ca]
;
W[ac]
C[RIGHT 1000 year Ko The throw in at a is actually not so good, because without it white can trade b for c. In my faulty first version this was the only solution, so I'm leaving it correct.]
LB[da:a][aa:b][ca:c]
)
(
;
W[ac]
C[RIGHT 1000 year Ko]
)
(
;
W[cb]
;
B[ca]
;
W[ac]
C[RIGHT 1000 year Ko]
)
(
;
W[ca]
;
B[cb]
;
W[aa]
(
;
B[ac]
(
;
W[fa]
;
B[da]
;
W[af]
;
B[ba]
C[two step Ko]
)
(
;
W[af]
;
B[da]
;
W[fa]
;
B[ba]
C[2 step Ko]
)
)
(
;
B[da]
C[wrong defense]
;
W[ac]
;
B[ba]
(
;
W[af]
C[2 stage ko]
)
(
;
W[fa]
C[2 stage Ko]
)
)
)
(
;
W[ab]
;
B[cb]
;
W[da]
;
B[ac]
C[Seki]
)
)
(
;
B[cb]
C[wrong defence]
;
W[ac]
;
B[ad]
;
W[da]
;
B[ab]
;
W[aa]
C[RIGHT Ko]
)
)
(
;
W[cb]
;
B[ca]
(
;
W[ad]
;
B[ac]
;
W[ab]
;
B[bc]
C[Seki]
)
(
;
W[bc]
;
B[ad]
;
W[ac]
C[RIGHT 1000 year Ko]
)
)
(
;
W[ca]
;
B[cb]
;
W[aa]
;
B[bc]
;
W[ac]
;
B[ad]
(
;
W[af]
;
B[da]
;
W[fa]
;
B[ab]
C[double Ko]
)
(
;
W[fa]
;
B[da]
;
W[af]
;
B[ab]
C[double Ko]
)
)
)
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