(;GM[1]FF[4]SZ[19]
GN[Possible too]
PC[http://senseis.xmp.net/?BeginnerExercise47/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise47/Solution

Possible too]
PL[W]

AB[da][bb][db][ac][cc][ad][bd][ae]
AW[ea][eb][dc][ec][cd][ed][be][de][af][bf][cf]

;W[ba]C[W1]MN[1]
;B[aa]C[B2]MN[2]
;W[ab]C[W3]MN[3]

;
)
