2 | Any piece guarded by a friendly knight can also move like a knight.
5 In addition to its normal abilities, a piece guarded by a knight can move like him.
6 On the following diagram, 1.Nf4 would checkmate because it guard the g6 queen.
7 If it is black to play, then 1...Rxe2 is possible due to the c8 knight.
9 figure.diagram-container
11 | fen:7k/8/6Q1/1n6/8/2r5/4N3/K7:
14 A pawn on the sixth rank guarded by a knight could thus make a knight move to reach
15 the last rank and promote.
17 p These oddities excepted, orthodox rules apply.
22 | The original rule invented by Mannis Charosh (1972) is described for example
23 a(href="https://www.chessvariants.com/diffmove.dir/nrelay.html") on this page
24 | . However, I don't really like the invulnerability condition and the restrictions
25 | imposed in these rules, so I implemented this simpler version.