(;GM[1]FF[4]SZ[19]
GN[Final position]
PC[http://senseis.xmp.net/?RetrogradeAnalysisProblem3/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RetrogradeAnalysisProblem3/Attempts

Final position]
PL[B]

AB[lo][mo][no][po][ro][kp][np][nq][kr][nr]
AW[mp][mq][oq][pq][qq][rq][sq][mr][or][sr][ms][ns][ps][ss]

;B[qr]C[B7]MN[7]

;
)
