--- /dev/null
+p.boxed
+ | Captures are mandatory. Win by checkmating.
+
+p.
+ Everything is the same as in orthodox rules, except that when possible,
+ captures are forced.
+ The goal is still to checkmate, and stalemate is a draw.
+
+p.
+ Some opening traps can be mentioned, like on the following diagram:
+ Qxd7+ will be forced, losing the queen.
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/pppp1pp1/7p/4P3/8/8/PPP1PPPP/RNBQKBNR:
+ figcaption After 1.d4?? e5 2.dxe5 h6.
+
+h3 More information
+
+p.
+ This idea was suggested recently (2020) by Vincent Rothuis.
+ It's simple so probably not new, but I never saw it before.