(;GM[1]FF[4]SZ[19]
GN[Tricky but not intractable]
PC[http://senseis.xmp.net/?12PointFunProblem/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?12PointFunProblem/Attempts

Tricky but not intractable]
PL[W]

AB[db][eb][bc][cc][dd]
AW[ab][bb][cb][dc][ec]

;W[ed]C[W1]MN[1]
;B[fb]C[B2]MN[2]
;W[cd]C[W3]MN[3]
;B[bd]C[B4]MN[4]
;W[ce]C[W5]MN[5]
;B[be]C[B6]MN[6]
;W[cf]C[W7]MN[7]
;B[bf]C[B8]MN[8]

;
)
