(;GM[1]FF[4]SZ[19]
GN[All black chains are unconditionally alive]
PC[http://senseis.xmp.net/?BensonsDefinitionOfUnconditionalLife/Version20100208]AP[GoWiki:2009]
DT[2010-02-07]
C[Diagram from http://senseis.xmp.net/?BensonsDefinitionOfUnconditionalLife/Version20100208

All black chains are unconditionally alive]
PL[B]

AB[pe][qe][if][jf][kf][lf][mf][nf][of][pf][rf][fg][gg][hg][ig][ng][rg][ch][dh][eh][ih][oh][ph][qh][rh][ci][fi][gi][hi][qi][cj][fj][ij][jj][kj][lj][mj][qj][ck][fk][gk][hk][mk][nk][ok][pk][qk][cl][il][ll][pl][cm][dm][em][im][jm][km][lm][mm][nm][pm][en][fn][gn][hn][in][on][pn]
AW[qg][ej][ek][jk][kk][el][fl][gl]


;
)
