(;GM[1]FF[4]SZ[19]
GN[Correct sequence]
PC[http://senseis.xmp.net/?SnapbackProblem10/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SnapbackProblem10/Solution

Correct sequence]
PL[W]

AB[ea][fa][cb][eb][dc][dd][be][de][df][ef][dg][fg][ch][cj]
AW[ga][db][fb][hb][ec][fc][ee][fe][ff][eg][gg][eh][ei]

;W[ca]C[W1]MN[1]
;B[ba]C[B2]MN[2]
;W[da]C[W3]MN[3]
;B[bb]C[B4]MN[4]

;
)
