(;GM[1]FF[4]SZ[19]
GN[Problem 3]
PC[http://senseis.xmp.net/?DoubleSnapback]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?DoubleSnapback

Problem 3]
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]


;
)
