Keys "s"=save "l"=load "b"=back once
Roberto Gravino, 1979. A popular way to play Circe Chess. This is evidently the standard variant of the progressive game. Unlike in ordinary Circe Chess, captured units return to their true squares of origin if unoccupied.
No giving check until the last move of a turn.
These are simple illustrations rather than strong opponents.
Bug reports? -- Thank you! Keep them coming!