(;GM[1]FF[4]SZ[19]
GN[Problem 3]
PC[http://senseis.xmp.net/?DoubleSnapback]AP[GoWiki:2009]
DT[2011-11-30]
C[Diagram from http://senseis.xmp.net/?DoubleSnapback

Problem 3]
PL[B]

AB[ao][bo][co][do][ep][fp][fq][cr][dr][fr][hr]
AW[ap][bp][cp][dp][dq][eq][br][er]


;
)
