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Weiss

The name is an homage to VICE which I used as a base for this project.

Weiss appears in most rating lists, and can be seen competing at TCEC and Chess.com.

UCI settings

  • Hash

    The size of the hash table in MB.

  • Threads

    The number of threads to use for searching.

  • SyzygyPath

    Path to syzygy tablebase files. Uses Pyrrhic library.

  • MultiPV

    Output the N best lines when searching. Leave at 1 for best performance.

  • UCI_Chess960

    An option handled by your GUI. If true, Weiss will play Chess960.

  • NoobBook

    Allow Weiss to query and play moves suggested by noobpwnftw's online opening database.

  • NoobBookMode

    Sets the query mode to use (see dbcn docs):

    • best - chooses randomly from the moves with scores close to the best. Stops if all moves' scores are below a threshold.
    • all - chooses the move with the highest score (first in the returned list). Only stops if there are no moves with scores.
  • NoobBookLimit

    Limit the use of NoobBook to the first x moves of the game. Only relevant with NoobBook set to true.

  • OnlineSyzygy

    Allow Weiss to query online 7 piece Syzygy tablebases hosted by lichess.