(;GM[1]FF[4]SZ[3]
GN[4-7]
PC[http://senseis.xmp.net/?ShortestAToBProofGames3x3/Solution]AP[GoWiki:2009]
DT[2015-03-24]
C[Diagram from http://senseis.xmp.net/?ShortestAToBProofGames3x3/Solution

4-7]
PL[W]

AB[bc][cc]
AW[ba][ca][bb]

;W[ac]C[W4]MN[4]
;B[ab]C[B5]MN[5]
;B[cb]C[B7]MN[7]

;
)
