clpz vs kanren

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clpz		kanren
	Project
5	Mentions	3
172	Stars	147
-	Growth	0.0%
4.4	Activity	0.0
2 months ago	Latest Commit	about 1 year ago
Prolog	Language	Python
-	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

clpz

Posts with mentions or reviews of clpz. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-01.

Logic programming is overrated, at least for logic puzzles (2013)
2 projects | news.ycombinator.com | 1 Jun 2023

As pointed out in the comments in the article, these kinds of logic puzzles are easier to solve using constraint programming than "regular" logic programming.
For example, see the solution to the Zebra Puzzle here: https://www.metalevel.at/prolog/puzzles which uses CLPZ[^1].
[^1]: https://github.com/triska/clpz
is it possible to have a reversable operation
2 projects | /r/rust | 22 Apr 2022

None of these are full-fledged programming languages, however. They're limited to problems that lie in the polynomial hierarchy (A class which contains P and NP). Logic programming is generally only used to solve hard problems for which no good algorithm is known. Prolog also sort of fits this niche and it has a bunch of solvers integrated into it. Notably CLPFD which uses https://github.com/triska/clpz for constraint logic programming. Rosette (https://docs.racket-lang.org/rosette-guide/index.html) is another solver-based language. Except it uses lisp syntax (it's embedded in the Racket language). It uses Z3 as a solver (linked above for SMT theories)
Ask HN: Do you use an optimization solver? Which one? Why? Do you like it?
12 projects | news.ycombinator.com | 20 Apr 2022
What is the difference between constraint solving and constraints programming?
2 projects | /r/compsci | 3 Nov 2021

Constraint programming I guess is when one uses a prolog library such as: https://github.com/triska/clpz

kanren

Posts with mentions or reviews of kanren. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning kanren yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing clpz and kanren you can also consider the following projects:

minizinc-python - Access to all MiniZinc functionality directly from Python

prolog-checkers - A Player vs AI game of checkers implemented in Prolog

HiGHS - Linear optimization software

SSI - A Prolog Compiler written in Prolog.

or-tools - Google's Operations Research tools:

ukanren-rs - Rust implementation of µKanren, a featherweight relational programming language.

osqp - The Operator Splitting QP Solver

csips - A pure-python integer programming solver

optaplanner-quickstarts - Mirror of https://github.com/apache/incubator-kie-optaplanner-quickstarts

OptaPlanner - Java Constraint Solver to solve vehicle routing, employee rostering, task assignment, maintenance scheduling, conference scheduling and other planning problems.

golomb-solver - Create Golomb rulers with constraint programming

meal-scheduler