Author: José de Jesús García Ruvalcaba
Date: 12:02:31 07/16/99
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On July 16, 1999 at 14:53:53, Robert Pope wrote: >On July 16, 1999 at 12:44:48, José de Jesús García Ruvalcaba wrote: > >> I have read that Thompson's tablebases store distance to conversion (as opposed >>to distance to mate). What is the definition of "conversion" in this context? >>José. > >That would be reaching a position where a different tablebase is needed to find >the next move to play. > >For example, an endgame might be played out with three conversions: >Starting with KRPkr. >The pawn eventually queens (into KQRkr) >but is immediately captured by the rook (into KRkr) >But since the Queen was guarded by the rook, RxR (into KRk) >And then white goes on to mate. > >The distance to conversion is the maximum time needed to force the next simpler >stage. Thank you very much! I knew that delivering mate and capturing pieces were conversions, but I was not sure if any pawn move was a conversion or only the pawn promotions. José.
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