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

Difference game Black first]
PL[B]

AB[kh][lh][mh][nh][oh][ph][di][gi][ki][ni][pi][dj][ej][gj][hj][pj][dk][hk][pk][dl][hl][pl][dm][em][fm][gm][hm][pm]
AW[ch][dh][eh][fh][gh][hh][ci][ei][hi][li][mi][oi][cj][kj][lj][nj][oj][ck][kk][cl][kl][ol][cm][km][lm][mm][nm][om]

;B[ok]C[B1]MN[1]
;W[nk]C[W2]MN[2]
;B[fi]C[B3]MN[3]

;
)
