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+p.boxed.
+ Pieces of the same kind mutually attacked are immobilized.
+
+p.
+ Two pieces of the same kind which both attack the other are paralysed.
+ They cannot move and they don't give check.
+ This rule also applies to kings, which would then stay in the same position
+ until the end of the game.
+
+figure.diagram-container
+ .diagram
+ | fen:bN2kq1r/p1pp4/2n2Qpr/4RpNp/1pPb1P1P/P2K2P1/1P1R1B2/7B:
+ figcaption e5 rook is safe and give check. 1...Kd8 is possible.
+
+p.
+ The diagram look like a checkmate because both black knight and bishop are
+ immobilized, but since the queens are paralysed the king can escape to d8.
+
+h3 Source
+
+p
+ | This variant appears on a number of web pages, like
+ a(href="https://echekk.fr/spip.php?page=article&id_article=1") this one
+ | or the
+ a(href="https://en.wikipedia.org/wiki/Madrasi_chess") Wikipedia page
+ | .
+
+p Inventor: Abdul J. Karwathar (1979)