I've seen implements of blackhole reversi variants on other sites. Nowhere I've seen variant that i have been thinking: balck holes in every 4 corners of game board. I've not playtested this version, but I think it might work. Opinions?
(do skréše) Dež seš napnoté(á), jak probihá tornaj, do keryhos vlitl(a), možeš ho se svéma spološpilošama okecat rovnó v "Mloveni" o toďteho tornaja. (HelenaTanein) (okázat šecke vechetávke)