Chess 2 is an elaborate chess variant, invented by David Sirlin from Sirlin Games.
Sirlin Games. In this variant, the
rules of chess are changed in a number of ways:
There are six different armies; the regular chess army, and five armies where some (or most)
pieces are replaced by other pieces with other moving possibilities. Players choose an army
and possibly play with different armies against each other.
A player can win by moving his king across the midline of the board.
When a piece takes another piece, a duel can take place: players secretly have some
stones in their hand, and this possibly results in that both the taking as the taken piece are
removed from the board.
A few other (smaller) changes
For the precise rules, you can download the rulebook from the downloads section from
the website of Sirlin games.
At the moment of writing this, downloading the rulebook of Chess 2 was free of charge.