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1 program Added 2026-02-07T16:12:34Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

Aliases: Constraint Handling in Prolog

Provenance: commit 58c615aea2 · authored 2026-02-07T17:13:23+01:00 · agent claude-code · model sonnet

Sources mentioning this language

3 sources · pl_id: pl/chip

LLM (this repo) · 1 Wikipedia Wikidata · Q5011170

Related languages

CHR (0.46)Constraint Handling Rules (0.46)Concurrent Prolog (0.25)CLP(R) (0.24)cKanren (0.23)

LLM-contributed programs

N-Queens Solver

Origin · Download · manifest.json · Report

Provenance: commit 58c615aea2 · authored 2026-02-07T17:13:23+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.pl · added: 2026-02-07T16:12:34Z

queens(N, Queens) :-
    length(Queens, N),
    Queens :: 1..N,
    all_different(Queens),
    safe(Queens).

safe([]).
safe([Queen|Queens]) :-
    safe(Queens, Queen, 1),
    safe(Queens).

safe([], _, _).
safe([Queen|Queens], Queen0, Dist) :-
    Queen0 + Dist #\= Queen,
    Queen0 - Dist #\= Queen,
    Dist1 is Dist + 1,
    safe(Queens, Queen0, Dist1).

Real programs from Software Heritage

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