@@ -18,6 +18,7 @@
(define-module (gnu packages lc0)
#:use-module (guix build utils)
+ #:use-module (guix build-system copy)
#:use-module (guix build-system meson)
#:use-module (guix build-system trivial)
#:use-module (guix download)
@@ -145,3 +146,57 @@ (define-public lc0-815383
"https://storage.lczero.org/files/networks/8af6098d6fb76e2bef6ef9ee87e61fadcb99f0b789013a72953a95ad10a9e933"
"09gm8lgaick60rn4x9h9w5sxdqivr4ign73viviadw1gj7wsbnsg"
"This is an official neural network of a “main run” of the Leela Chess Zero project. The network was finished being trained in September of 2023."))
+
+(define (make-lc0-maia rating)
+ (package
+ (name (string-append "lc0-maia-" rating))
+ (version "1.0")
+ (source (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url "https://github.com/CSSLab/maia-chess")
+ (commit (string-append "v" version))))
+ (file-name (git-file-name "maia" version))
+ (sha256
+ (base32
+ "0qjkp56pb5vvkr3j1vdsdzligvy7faza917z7vdfmf168pkvrxsr"))))
+ (build-system copy-build-system)
+ (arguments
+ `(#:install-plan '((,(string-append "model_files/" rating "/final_"
+ rating "-40.pb.gz") ,(string-append
+ "share/lc0/maia-"
+ rating ".pb.gz")))))
+ (synopsis "Human-like neural network for Leela Chess Zero")
+ (description
+ "Maia’s goal is to play the human move — not necessarily the best move.
+As a result, Maia has a more human-like style than previous engines, matching
+moves played by human players in online games over 50% of the time.")
+ (home-page "https://maiachess.com")
+ (license license:gpl3)))
+
+(define-public lc0-maia-1100
+ (make-lc0-maia "1100"))
+
+(define-public lc0-maia-1200
+ (make-lc0-maia "1200"))
+
+(define-public lc0-maia-1300
+ (make-lc0-maia "1300"))
+
+(define-public lc0-maia-1400
+ (make-lc0-maia "1400"))
+
+(define-public lc0-maia-1500
+ (make-lc0-maia "1500"))
+
+(define-public lc0-maia-1600
+ (make-lc0-maia "1600"))
+
+(define-public lc0-maia-1700
+ (make-lc0-maia "1700"))
+
+(define-public lc0-maia-1800
+ (make-lc0-maia "1800"))
+
+(define-public lc0-maia-1900
+ (make-lc0-maia "1900"))