This chess variant, in which a piece promotes or demotes on every move, is faster that FIDE chess, and has its specific tactics even for demoted moves. The board position is very dynamic and a quiet little piece can suddenly turns into a dangerous attacking one!
 
 
Rules:

1. The FIDE rules apply, except in the following:
2. The system of Promotions/Demotions respects the following ordering: P<N=B<R<Q.
3. On odd turns, the moved (non king) piece is promoted.
   1. Queens cannot be promoted, so they cannot move on odd turns.
   2. This rule does not apply to typical FIDE promotions.
4. On even turns, the moved (non king) piece is demoted.
   1. Pawns cannot be demoted, so they cannot move on even turns.
   2. A Bishop or Knight cannot move (and then demote to a Pawn) to the last rank.
5. There is no en-passant.
6. Castling affects the Rook.
7. A stalemated player looses the game.