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Greg Strong wrote on Wed, Mar 4, 2020 12:50 AM UTC:

@Aurelian:

ChessV decides what games an engine supports based on the variants it announces support for.  Unfortunately, the XBoard protocol only specifies how a small number of variants are to be named and they are often not the official name of the game.  For example, Joe Joyce's Great Shatranj is identified only as "great".  So for many games, ChessV doesn't know if an engine supports a game because there is no official string used to identify the game.

That said, you can tell ChessV how a variant should be identified by specifying the XBoardName string variable.  So, if you have configured FairyMax to play Frog Chess and called it "frog", you would also edit the ChessV include file that defines Frog Chess adding the following line:

XBoardName = "frog";

This line goes right inside the Game definition, where Invented and InventedBy are specified.  If you do this, it should offer Fairy-Max as an opponent for Frog Chess.


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