pencil-puzzles for Python
Generate, solve, rate and check pencil puzzles such as sudoku and nurikabe. Generated puzzles have exactly one solution and a difficulty from easy to expert, set by the hardest solving technique they need.
Requires CPython 3.10 or newer on Windows, macOS or Linux:
pip install pencil-puzzles
import pencil_puzzles as pp
g = pp.generate("sudoku", (9, 9), difficulty="medium", seed=42)
print(g.puzzle.givens)
print(g.rating.level, g.rating.techniques)
assert pp.solve(g.puzzle) == g.solution
assert pp.rate(g.puzzle) == g.rating
assert pp.check(g.puzzle, g.solution) == []
print(pp.hint(g.puzzle)) # the first step a solver would take
same = pp.Puzzle.from_id(g.puzzle.id)
The same arguments and package version always give the same puzzle. To save
or share a puzzle, use its ID. Every operation takes
limits=pp.Limits(work=..., attempts=...) and cancel=pp.CancellationToken();
running out of a limit raises an error. Cancellation can come from another
thread, and Ctrl-C raises KeyboardInterrupt.
All public names are listed in docs/design/python-api.md.
Building
pip install maturin
maturin build --release
pip install target/wheels/pencil_puzzles-*.whl
python -m unittest discover -s python/tests
Metadata
Release files for pencil-puzzles 0.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| pencil_puzzles-0.2.0.tar.gz | 271.7 kB | With provenance | Details for pencil_puzzles-0.2.0.tar.gz |
Built distributions (wheels)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| pencil_puzzles-0.2.0-cp310-abi3-win_amd64.whl | CPython 3.10 | abi3 | Windows x86-64 | Details for pencil_puzzles-0.2.0-cp310-abi3-win_amd64.whl |
| pencil_puzzles-0.2.0-cp310-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl | CPython 3.10 | abi3 | Linux glibc 2.17+ x86-64 | Details for pencil_puzzles-0.2.0-cp310-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
| pencil_puzzles-0.2.0-cp310-abi3-macosx_11_0_arm64.whl | CPython 3.10 | abi3 | macOS 11.0+ ARM64 | Details for pencil_puzzles-0.2.0-cp310-abi3-macosx_11_0_arm64.whl |
Total release size: 4.2 MB
Release files / pencil_puzzles-0.2.0.tar.gz
| Download URL | pencil_puzzles-0.2.0.tar.gz |
|---|---|
| Size | 271.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
3c36862d9f1643ce4d51a901c213317671701fb122f88a6756db26b89646aaeb
|
|
BLAKE2b-256 checksum How to use checksums |
fba95db1d02138680924e8d19e3a0ef24a98973b1704bb9fcbc6eee38f45fc5f
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / pencil_puzzles-0.2.0-cp310-abi3-win_amd64.whl
| Download URL | pencil_puzzles-0.2.0-cp310-abi3-win_amd64.whl |
|---|---|
| Size | 1.3 MB |
| Tags | CPython 3.10 Windows x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
11e78184d49a9f5cf712f3d971c61dd43c0e1d1d23c167518f2039d3408dfb79
|
|
BLAKE2b-256 checksum How to use checksums |
406b2238f9f4bfd864c3522896d25840bf607c50a713d542f6843077ac00fec0
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / pencil_puzzles-0.2.0-cp310-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
| Download URL | pencil_puzzles-0.2.0-cp310-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
|---|---|
| Size | 1.4 MB |
| Tags | CPython 3.10 Linux glibc 2.17+ x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
5c4778c10c05805a9ffc3ea37f29d64032e439dc4a3aeab299c915e7ef5bde4a
|
|
BLAKE2b-256 checksum How to use checksums |
442858f19e9d1ca97441218b1447cbcc0d135b5cff941b048d16dd6d2f336c57
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / pencil_puzzles-0.2.0-cp310-abi3-macosx_11_0_arm64.whl
| Download URL | pencil_puzzles-0.2.0-cp310-abi3-macosx_11_0_arm64.whl |
|---|---|
| Size | 1.2 MB |
| Tags | CPython 3.10 abi3 macOS 11.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
abdc8ba15c640ca56c4e656903e55d24b0fa2dbf134ddfd90bddc3620283cf39
|
|
BLAKE2b-256 checksum How to use checksums |
a38ef00e6139c4f0cc8a9e3d12cc343f5a30de49b99363004c7798dece788424
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logSecurity for pencil-puzzles 0.2.0
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 4 files in this release have been uploaded with provenance metadata.
Attestation for pencil_puzzles-0.2.0.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
To learn more about protecting yourself from malicious actors, visit our package security documentation.