(;GM[1]FF[4]SZ[19:14]
GN[Difference game 1, White first]
PC[http://senseis.xmp.net/?PracticalEndgameTest5/DifferenceGames]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PracticalEndgameTest5/DifferenceGames

Difference game 1, White first]
PL[W]

AB[ba][cb][kb][bc][dc][jc][kc][dd][ed][fd][kd][fe][ge][je][if][jf][gi][hi][hj][kj][lj][gk][ik][jk][lk][el][fl][gl][il][ll][dm][hm][im][lm][cn][dn][kn][ln]
AW[ca][da][ka][la][db][eb][hb][ib][lb][ec][fc][gc][ic][lc][gd][id][ld][he][ke][le][gf][hf][ii][ji][fj][gj][jj][dk][ek][fk][kk][bl][dl][jl][kl][cm][km][bn]

;W[em]C[W1]MN[1]
;B[fm]C[B2]MN[2]
;W[fn]C[W3]MN[3]
;B[gn]C[B4]MN[4]
;W[en]C[W5]MN[5]
;B[jd]C[B6]MN[6]
;W[jb]C[W7]MN[7]

;
)
