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

What?]
PL[W]

AB[fb][gb][dc][gc][dd][ed][fd]
AW[eb][hb][fc][hc][gd][fe]
CR[fc]

;W[ga]C[W1]MN[1]
;B[ec]C[B2]MN[2]
;W[fa]C[W3]MN[3]
;W[hd]C[W5]MN[5]

;CR[fc]
)
