Understanding the infamous carpenter square is not entirely impossible. Use the navigate option to help you in the following variations.
(
;
FF[4]
GM[1]
SZ[19]
AP[Jago:Version 4.27]
AB[ad][bd][cd][dd][dc][db][da]
AW[ae][be][ce][de][ee][ed][ec][eb][ea][bb]
GN[200]
C[If I were a carpenter ... (1)]
(
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W[cb]
;
B[ab]
(
;
W[ca]
C[RIGHT 1000 year Ko( in this case direct ko, but first black can tenuki)]
)
(
;
W[ba]
C[Seki]
)
(
;
W[bc]
;
B[ac]
(
;
W[ca]
C[RIGHT 1000 year Ko( in this case direct ko, but first black can tenuki)]
)
(
;
W[ba]
C[Seki]
)
)
)
(
;
W[ab]
;
B[cb]
(
;
W[bc]
;
B[ba]
;
W[aa]
C[Also a 1000 year Ko, but with one extra approach move.]
)
(
;
W[ba]
;
B[bc]
C[Seki]
)
)
(
;
W[ba]
;
B[bc]
(
;
W[cb]
;
B[ab]
;
W[aa]
C[Also a 1000 year Ko, but with one extra approach move.]
)
(
;
W[ab]
;
B[cb]
C[Seki]
)
)
(
;
W[bc]
;
B[ba]
(
;
W[ac]
C[RIGHT 1000 year Ko( in this case direct ko, but first black can tenuki)]
)
(
;
W[cb]
;
B[ca]
(
;
W[ac]
C[RIGHT 1000 year Ko( in this case direct ko, but first black can tenuki)]
)
(
;
W[ab]
C[Seki]
)
)
(
;
W[ab]
C[Seki]
)
)
)
