Orthodox rules apply, but giving three checks win the game.
Since it is easier than checkmate, most games would end in this way.
+p.
+ In the diagram position, 2.Bb5+ c6 3.Bxc6+ is an excellent
+ sacrifice because now only one check will give white victory.
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR:
+ figcaption.
+ After the moves 1.e4 d6??
+
h3 Source
p