(;GM[1]FF[4]SZ[19]
GN[A personal icon - the symbol for the set of integers, in contrasting colours.]
PC[http://senseis.xmp.net/?KarlKnechtel]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KarlKnechtel

A personal icon - the symbol for the set of integers, in contrasting colours.]
PL[B]

AB[dd][ed][fd][gd][hd][id][jd][kd][ld][md][nd][od][pd][pe][of][ng][mh][li][kj]
AW[ij][hk][gl][fm][en][do][dp][ep][fp][gp][hp][ip][jp][kp][lp][mp][np][op][pp]

;B[jk]C[B1]MN[1]
;W[ji]C[W2]MN[2]
;B[il]C[B3]MN[3]
;W[kh]C[W4]MN[4]
;B[hm]C[B5]MN[5]
;W[lg]C[W6]MN[6]
;B[gn]C[B7]MN[7]
;W[mf]C[W8]MN[8]
;B[fo]C[B9]MN[9]
;W[ne]C[W10]MN[10]

;
)
