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Jaguaribe's here is non-trivial and original with obviously several alternatives being described at once, the way he tapers into Antimatter Chess. Bizarro, in Bizarro versus
F.i.d.e., is F.i.d.e.'s opposite double. Against the conventional forces,
Pawns are strong Rooks to move, but Bishops Ferz and Rooks Wazirs and Queens mediaeval Courier Men, and Knights
strong Grandmasters (all-leaping Nightriders). Since moves are simultaneous in double blind, there exist capture by accident, and more like Alice than Kriegspiel two boards, being real. ''World change'' is in that Bizarro's become F.i.d.e.'s, and vice versa, for the next move. AS means Arabic Spears.