Nalwald

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Home * Engines * Nalwald

Nalwald logo ^[1]

Nalwald,
an UCI compatible open source chess engine by Jost Triller, written in the Nim programming language ^[2], first released in April 2021 ^[3]. Nalwald is a bitboard engine and generates sliding piece attacks Kindergarten like, by looking up four pre-calculated line attack arrays, 32-Kbyte each, indexed by square and inner six bit line occupancy ^[4].

Contents

1 Features
2 See also
3 Forum Posts
4 External Links
- 4.1 Chess Engine
- 4.2 Misc
5 References

Features

Board Representation

Search

Evaluation

Piece-Square Tables indexed by King Squares
Mobility
- Rook on Open File
Pawn Structure
King Safety
- Pawn Shelter
- Attacking King Zone
Evaluation Tuning using Gradient Descent

See also

Googleplex Starthinker

Forum Posts

Nalwald: Chess engine written in Nim by Jost Triller, Reddit, April 25, 2021
Re: New engine releases & news 2021 (Nalwald 1.8.1) by Tony Mokonen, CCC, May 08, 2021
Re: New engine releases & news 2021 (Nalwald 1.9) by Jost Triller, CCC, June 16, 2021

External Links

Chess Engine

Misc

Nalwald | PaxCalradica Wiki | Fandom

References

↑ Nalwald logo based on logo.png · master · Tsoj Tsoj / Nalwald · GitLab
↑ Nim programming language from Wikipedia
↑ Nalwald: Chess engine written in Nim by Jost Triller, Reddit, April 25, 2021
↑ bitboard.nim · master · Tsoj Tsoj / Nalwald · GitLab
↑ README.md · master · Tsoj Tsoj / Nalwald · GitLab

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