(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?SnapbackProblem41/Solution]AP[GoWiki:2009]
DT[2009-06-19]
C[Diagram from http://senseis.xmp.net/?SnapbackProblem41/Solution

]
PL[B]

AB[en][fn][do][go][dp][ep][fp][cq][dq][gq][br][gr][bs][fs]
AW[em][fm][cn][dn][hn][co][ho][cp][gp][hp][bq][fq][hq][ar][cr][fr][hr][cs]

;B[gs]C[B1]MN[1]
;W[hs]C[W2]MN[2]
;B[es]C[B3]MN[3]
;W[er]C[W4]MN[4]
;B[dr]C[B5]MN[5]

;
)
