(;GM[1]FF[4]SZ[19]
GN[Alternative B]
PC[http://senseis.xmp.net/?RTGProblem12/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem12/Attempts

Alternative B]
PL[B]

AB[ab][cb][eb][ac][cc]
AW[fb][hb][ec][fc][ad][bd][cd][dd]

;B[ca]C[B1]MN[1]
;W[bc]C[W2]MN[2]
;B[bb]C[B3]MN[3]
;W[db]C[W4]MN[4]

;
)
