(;GM[1]FF[4]SZ[19]
GN[White lives]
PC[http://senseis.xmp.net/?SnapbackProblem13/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SnapbackProblem13/Solution

White lives]
PL[B]

AB[ga][gb][gc][bd][cd][dd][ed][fd][gd]
AW[ba][fa][bb][cb][db][fb][cc][fc]
CR[fa][fb][fc]
LB[ea:a][ec:b]

;B[dc]C[B1]MN[1]
;W[ab]C[W2]MN[2]
;B[eb]C[B3]MN[3]
;W[da]C[W4]MN[4]

;CR[fa][fb][fc]
LB[ea:a][ec:b]
)
