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

Forcing moves]
PL[W]

AB[dc][cf]

;W[de]C[W1]MN[1]
;B[ce]C[B2]MN[2]
;W[dd]C[W3]MN[3]
;B[cd]C[B4]MN[4]
;W[ec]C[W5]MN[5]
;B[db]C[B6]MN[6]

;
)
