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+p.boxed
+ | Capture your own pieces to fusion their power.
+
+p
+ | Capturing a rook, knight, bishop or queen of your color with a piece
+ | from this list but of a different nature is allowed.
+ | The result adds up the pieces' abilities, as in
+ a(href="/#/variants/Absorption") Absorption
+ | variant.
+
+p This was suggested by Vincent Rothuis in 2020.