(;GM[1]FF[4]SZ[4:3]
GN[]
PC[http://senseis.xmp.net/?3x4Problems/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?3x4Problems/Attempts

]
PL[B]

AB[ca][da]
AW[aa][cb][db][cc][dc]

;B[bb]C[B1]MN[1]
;W[ba]C[W2]MN[2]

;
)
