(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?BeginnerExercise208/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise208/Solution

Solution]
PL[B]

AB[ac][ad][be][bf][cf][bg][dg][ah][bh][ch][dh][ai][bi]
AW[bb][bc][bd][cd][ce][df][ef][eg][eh][ci][di][ei][bj][ck]

;W[ae]C[W6]MN[6]
;B[af]C[B7]MN[7]

;
)
