(;GM[1]FF[4]SZ[19]
GN[Possible solution.]
PC[http://senseis.xmp.net/?BQM288]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM288

Possible solution.]
PL[W]

AB[co][dp][fq]

;W[cq]C[W1]MN[1]
;B[er]C[B2]MN[2]

;
)
