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

The checking extension (1)]
PL[W]

AB[pc][dd][qe]
LB[oe:a]

;W[kc]C[W1]MN[1]
;B[ic]C[B2]MN[2]
;W[nc]C[W3]MN[3]

;LB[oe:a]
)
