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