-h3 Specifications
-
-ul
- li Chessboard: standard.
- li Material: additional antiking.
- li Non-capturing moves: standard.
- li Special moves: standard.
- li Captures: special case of antiking (see below).
- li End of game: Checkmate or anti-checkmate.
-
-h3 Basics
+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
+ considered in (anti-)check when not attacked by any enemy piece. In such a
+ situation, the antiking must move immediately to an attacked square.