(;GM[1]FF[4]SZ[19]
GN[Position after move 333]
PC[http://senseis.xmp.net/?RetrogradeAnalysisProblem1/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RetrogradeAnalysisProblem1/Attempts

Position after move 333]
PL[B]

AB[ba][ca][ma][na][oa][pa][ab][cb][gb][lb][nb][pb][cc][gc][kc][lc][nc][pc][ad][bd][fd][hd][ld][nd][pd][qd][sd][be][ce][de][ee][fe][je][ke][pe][re][gf][lf][mf][qf][rf][sf][cg][dg][eg][gg][mg][ng][rg][eh][gh][nh][ai][di][ei][fi][ji][mi][oi][ri][aj][bj][cj][hj][mj][nj][qj][rj][ck][dk][ek][ik][lk][mk][rk][sk][el][fl][jl][kl][ll][ml][nl][sl][cm][dm][fm][gm][hm][im][km][mm][om][rm][sm][en][fn][gn][hn][in][ln][nn][on][pn][qn][go][ho][ro][so][cp][hp][ip][mp][np][op][pp][rp][sp][bq][cq][dq][gq][hq][iq][kq][pq][cr][ir][jr][kr][mr][or][pr][qr][rr][sr][bs][ds][js][ks][ls][ms][os][rs]
AW[db][fb][kb][mb][ob][qb][rb][dc][fc][mc][oc][qc][sc][cd][dd][ed][gd][md][od][rd][le][me][ne][oe][bf][cf][df][ef][ff][if][kf][nf][of][pf][bg][fg][kg][lg][og][pg][qg][sg][ah][bh][dh][fh][lh][mh][ph][rh][bi][ci][gi][hi][ii][ki][li][pi][qi][si][dj][ej][fj][gj][jj][lj][oj][pj][ak][bk][fk][gk][jk][kk][nk][pk][qk][bl][cl][dl][gl][hl][il][ol][pl][ql][rl][bm][jm][pm][bn][dn][jn][kn][mn][co][eo][fo][io][jo][lo][mo][no][oo][po][qo][bp][dp][ep][fp][gp][jp][kp][lp][qp][eq][fq][jq][lq][mq][nq][oq][qq][rq][sq][ar][dr][er][fr][gr][hr][lr][nr][es][hs][is][ns][qs]


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