(;GM[1]FF[4]SZ[19]
GN[Problem]
PC[http://senseis.xmp.net/?Hovercraft]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Hovercraft

Problem]
PL[B]

AB[bb][cb][db][ac][bc][cc][ad][cd][be][bf]
AW[ab][eb][dc][fc][dd][ae][ce][af][cf][ag][bg][cg]
LB[ca:a]

;B[bd]C[B1]MN[1]
;W[da]C[W2]MN[2]

;LB[ca:a]
)
