(;GM[1]FF[4]SZ[19]
GN[Problem 1]
PC[http://senseis.xmp.net/?DoubleSnapback/attempts1]AP[GoWiki:2009]
DT[2011-11-30]
C[Diagram from http://senseis.xmp.net/?DoubleSnapback/attempts1

Problem 1]
PL[B]

AB[bp][dp][ep][fp][bq][cq][fq][gq][hq][br][cr][hr][bs][hs]
AW[bo][co][do][eo][fo][go][ap][cp][gp][hp][ip][dq][iq][dr][fr][gr][ir][cs][ds][is]
LB[eq:a][gs:b]

;B[er]C[B1]MN[1]
;W[es]C[W2]MN[2]
;B[fs]C[B3]MN[3]

;LB[eq:a][gs:b]
)
