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

White's reply at ''b'']
PL[W]

AB[dc][gc][dd][fd]
AW[eb][fc][gd]

;W[fe]C[W1]MN[1]
;B[fb]C[B2]MN[2]

;
)
