Heroes 5.5 RC15 Beta 17 update - Chess Mode introduced (Fortress VS. Necropolis)
Chess mode has very different rules than the old duel mode. The old duel mode was already replaced by the ARMG duel template (see H55-Duel-L25 demo map), which has similar balancing as user-made competitive duel maps. The TOE duel mode can never provide such balancing, especially since it has critical issues inherited from original game (War machines and tactics skill don't work).
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