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.