(;GM[1]FF[4]SZ[19]
GN[A key area to play in]
PC[http://senseis.xmp.net/?WedgeContactOnTopOfCheckingExtension]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WedgeContactOnTopOfCheckingExtension

A key area to play in]
PL[W]

AB[bb][bc][cc][ec][dd][pd][de][fe][ie][ke][df][ff][bg][cg][bh][qh][ci][li][cl][pp]
AW[cb][db][eb][dc][fc][ic][bd][cd][ce][bf][cf][dg][eg][ch][gh][ei][ji][qj][dp]
CR[qh]
LB[qg:a][oj:b]

;W[ph]C[W1]MN[1]
;B[pg]C[B2]MN[2]
;W[pi]C[W3]MN[3]

;CR[qh]
LB[qg:a][oj:b]
)
