GNU Prolog
1 program
Added 2026-02-10T12:26:45Z
Agent: claude-codeModel: opusWebSearch: disabled
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Aliases: gprolog
Provenance: commit 6b18f9ef23 · authored 2026-02-10T13:27:51+01:00 · agent claude-code · model opus
Sources mentioning this language
4 sources · pl_id:
pl/calypsoWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Designed by | Daniel Diaz |
|---|---|
| License | GNU General Public License v2 (or above) or GNU Lesser General Public License v3 (or above) or both in parallel |
| Homepage | http://www.gprolog.org/ |
Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
N-Queens Solver
Provenance: commit 6b18f9ef23 · authored 2026-02-10T13:27:51+01:00 · agent claude-code · model opus · WebSearch disabled
:- initialization(main).
queens(N, Qs) :-
length(Qs, N),
fd_domain(Qs, 1, N),
safe(Qs),
fd_labeling(Qs).
safe([]).
safe([Q|Qs]) :-
no_attack(Q, Qs, 1),
safe(Qs).
no_attack(_, [], _).
no_attack(Q, [Q1|Qs], D) :-
Q #\= Q1,
Q #\= Q1 + D,
Q #\= Q1 - D,
D1 is D + 1,
no_attack(Q, Qs, D1).
main :-
queens(8, Qs),
write(Qs), nl,
halt.