2007 Chess Variants Tournament, Round 6

'Fast' (10 days + 1 day/move, max 30 days)
This game is being played under Extinction Chess rules. Click the 'info' tab for more information.
1. e4 c5
Clock started on 10/17/2007
2. Nc3 Nc6 3. Nce2 d6 4. Ng3 h5 5. Bb5 h4 6. N3e2 a6 7. Bxc6 bxc6 8. h3 g5 9. Nc3 Bg7 10. a3 Rb8 11. Nge2 Qa5 12. Ng1 Rh6 13. Nf3 g4 14. Ng1 Rg6 15. hxg4 Bxg4 16. f3 Be6 17. Qe2 Bd4 18. Nd1 c4 19. c3 Ba7 20. Nh3 Bxh3 21. Qxc4 Bd7 22. g4 d5 23. Qa2 dxe4 24. Rxh4 Rh6 25. Rxh6 Nxh6 26. d4 Ng8 27. Bf4 e5 28. Bg3 Rb7 29. Nf2 Bxd4 30. Nxe4 Be6 31. Nd6 Bxa2
Black win

 

Invented by R. Wayne Schmittberger and added here with his permission. You win by eliminating any one type of your opponent's pieces. Both bishops, for example.

1. Game rules

The game starts from the standard chess setup, and all the pieces move as in standard chess.

The game ends once one of the players eliminates any type of the opponent's pieces. Thus, a player who loses either his King, his Queen, his two Rooks, his two Bishops, his two Knights, or his eight Pawns, loses the game (barring a promotion).

Check and checkmate do not apply. Pawns may promote to any other type of piece, including Kings. When a Pawn promotes to some type of piece, this piece is also counted among the pieces of the type; e.g., when a Pawn promotes to a Queen, and the other Queen is captured, then the Queens are not considered to be extinct, i.e., the game continues. If a player promotes his last Pawn, he loses (as his Pawns are now extinct), unless he wins by extinction on that very move.

Since there is no check, castling under or through check is allowed.

 

2. Hints, tips, tricks

If you take your opponent's last piece of one kind, you immediately win, even if your piece could be recaptured on the very next move. So, what would be a usual queen exchange in standard chess, is a win here.

It is worth repeating: there is no check. If you attack the opponent's king, but he can capture your queen (or your last knight, or...), he will do that and win the game.

Especially in closed positions, it can be a good idea to sacrifice a rook for a minor piece if the opportunity arises. The opponent's remaining minor piece can then be hunted, while your second rook is not too likely to be troubled.

As there is no check, many tactical patterns from standard chess do not apply here. Beware! For example, in this game White expected to win the queen, but lost his own instead. Also, there is no absolute pin here.

More suggestions welcome

 

3. Example games

Commented Game published in the journal

Example game where both players have several pawns, but only ONE piece of each type (King, Queen, Rook, Bishop, and Knight). A different strategy must be used, since capture of any piece (except for pawns) ends the game.

Dense tactical struggle - notice many non-chess-like moves (like lack of recapture or piece being given up) related to different threats both players make

Straight for the bishop - after black gives up one of his bishops, white goes straight for the other one (note: if 10... Bxb7 then 11.Ba6)

More welcome


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