must always stay under check. Antiking captures his own kind.
p.
- A new piece is introduced: the antiking, noted by the letter 'A' in diagrams
- and PGNs. This piece must always remain under (orthodox) check: it is
+ A new piece is introduced: the antiking, noted by the letter 'A'.
+ This piece must always remain under (orthodox) check: it is
considered in (anti-)check when not attacked by any enemy piece. In such a
situation, the antiking must move immediately to an attacked square.
p.
The antiking is a royal figure, and thus cannot be captured.
- It captures only the pieces of his color (to help checkmating the opponent's
- antiking, but this also complicates standard checkmate).
+ It captures only the pieces of his color.
+ Antikings don't give check, and kings do not attack antikings.
figure.diagram-container
.diagram
| fen:rnbqkbnr/pppppppp/3A4/8/8/3a4/PPPPPPPP/RNBQKBNR c5,d5,e5:
figcaption Marked squares are not allowed antiking moves.
-ul
- li.
- Although antiking captures his color, it doesn't check his king - it
- doesn't check the opponent's king either.
- li.
- Since it would allow a basic tactic (keep antiking touching opponent's
- king), kings do not attack antikings.
-
h3 End of the game
-p There are two ways to win:
+p There are three ways to win:
ol
- li Checkmate opponent king
- li Anti-checkmate opponent antiking
-p.
- ...Or do both at the same time, as on the following diagram after 3.Qxf7#
- (the black antiking was on g3).
+ li Checkmate the opponent king
+ li "Anti-checkmate" the opponent antiking
+ li Give a double check, as on the following diagram
figure.diagram-container
.diagram