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

Gap-protecting tesuji]
PL[W]

AB[fb][fc][cd][dd][fd][be][cf][ff]
AW[eb][bc][cc][ec][bd]

;W[ba]C[W1]MN[1]
;B[db]C[B2]MN[2]
;W[dc]C[W3]MN[3]
;B[ea]C[B4]MN[4]
;W[da]C[W5]MN[5]
;B[ca]C[B6]MN[6]
;W[cb]C[W7]MN[7]

;
)
