(;GM[1]FF[4]SZ[19]
GN[answer-force example]
PC[http://senseis.xmp.net/?ForceMathematics]AP[GoWiki:2009]
DT[2010-02-09]
C[Diagram from http://senseis.xmp.net/?ForceMathematics

answer-force example]
PL[B]

AB[ba][ca][da][ga][gb][ib][bc][gc][bd][cd][dd][ed][cf]
AW[fa][ab][bb][cb][fb][cc][dc][ec]

;B[fc]C[B1]MN[1]
;W[eb]C[W2]MN[2]

;
)
