(;GM[1]FF[4]SZ[19]
GN[11-15]
PC[http://senseis.xmp.net/?RetrogradeAnalysisProblem11]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RetrogradeAnalysisProblem11

11-15]
PL[B]

AB[dc][dd][fd][fe]
AW[ec][fc][ed][gd][cf]

;B[de]C[B1]MN[1]
;W[ee]C[W2]MN[2]
;B[df]C[B3]MN[3]
;W[ef]C[W4]MN[4]
;B[dg]C[B5]MN[5]

;
)
