(;GM[1]FF[4]SZ[19]
GN[Ko]
PC[https://senseis.xmp.net/?BeginnerExercise106/Solution]AP[GoWiki:2009]
DT[2024-09-06]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise106/Solution

Ko]
PL[W]

AB[da][bb][db][ac][bc][cc]
AW[ea][eb][dc][ec][ad][bd][cd][dd]

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

;
)
