(;GM[1]FF[4]SZ[19]
GN[Alternate variation]
PC[http://senseis.xmp.net/?SnapbackProblem40/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SnapbackProblem40/Solution

Alternate variation]
PL[B]

AB[ea][fb][cc][fc][hc][ed][gd][ge]
AW[cb][eb][ec][dd][fd][be][de][fe][ff]

;B[bb]C[B1]MN[1]
;W[db]C[W2]MN[2]
;B[ca]C[B3]MN[3]

;
)
