(;GM[1]FF[4]SZ[19]
GN[If black captures four stones, White lives]
PC[http://senseis.xmp.net/?BQM578/Attempt]AP[GoWiki:2009]
DT[2013-04-18]
C[Diagram from http://senseis.xmp.net/?BQM578/Attempt

If black captures four stones, White lives]
PL[W]

AB[aa][ba][ca][da][ga][cb][db][gb][ec][fc][gc][ad][ed][be][ce][de]
AW[ab][bb][ac][bc][cc][dc]

;W[eb]C[W1]MN[1]

;
)
