(;GM[1]FF[4]SZ[19]
GN[Retractor Problem 1]
PC[http://senseis.xmp.net/?RetrogradeAnalysisProblem7]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RetrogradeAnalysisProblem7

Retractor Problem 1]
PL[B]

AB[eb][fb][bc][cc][dc]
AW[ba][da][ab][bb][cb]
LB[db:a]


;LB[db:a]
)
