(;GM[1]FF[4]SZ[19]
GN[White to play and kill]
PC[http://senseis.xmp.net/?OshiTsubushi]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OshiTsubushi

White to play and kill]
PL[W]

AB[ca][bb][cb][bc]
AW[ba][ab][eb][cc][dc][bd][ce]
CR[ba][ab]

;W[aa]C[W1]MN[1]
;B[ac]C[B2]MN[2]

;CR[ba][ab]
)
