Duell
Bored playing chess? Challenge yourself playing 'Duell'!
'Duell' is a challenging variant of chess, even more abstract than the original. Imagine a chess board, but replace the figures by dice. Instead of moving the dice, they are flipped around the board according to their value, obeying the rules of chess. And, you got it, they change their power as they change the number of pips!
This 'Duell' software project allows two players to challenge each other, or a single player to get challenged by the computer. Try it, but don't get yourself frustrated...