-p TODO
+p.boxed
+ | Win by giving three checks (or a single checkmate).
+
+p.
+ Orthodox rules apply, but giving three checks win the game.
+ Since it is easier than checkmate, most games would end in this way.
+
+h3 Source
+
+p
+ | Old variant, playable at several locations including
+ a(href="https://lichess.org/variant/threeCheck") lichess
+ | .