chess2plyrs

0.3.0

Chess Game Creation and Tools

0packages depend

2Kdownloads / year

78.9%test coverage

13/13checks pass

Overview

About

Maintained by Luigi AnnicchiaricoFirst published 2025-06-021 releasesCRAN page ↗

A chess program which allows the user to create a game, add moves, check for legal moves and game result, plot the board, take back, read and write FEN (Forsyth–Edwards Notation). A basic chess engine based on minimax is implemented.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("chess2plyrs", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-chess2plyrs

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-chess2plyrs

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-chess2plyrs

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 3.8 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.29

78.9%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 180 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

CRAN downloads in the past year

Rank #22,439 · ~5/day · ~165/mo

Releases R versions

Daily download trend is not available in this view yet.

16030 days

52790 days

2K1 year

Compare downloads with other packages →

Also on154 r2u23 autocran

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.3.0

Imports (2)

statsggplot2

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 2,035 (81%)Rd 331 (13%)Vignettes 152 (6%)

Code characteristics

Cyclomatic complexity: 4.0 median / 15 max

Test coverage

Line coverage

79%

Expression

77.3%

Tests / Examples

78.9% / 52% ex

Functions

30 11 exported

Complexity

5.4 avg / 15 max

Call network

30 nodes / 48 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

30 functions

Function	Cyclo	Coverage
engine2 exp	3	0%
readfen exp	3	0%
takeback exp	1	0%
chess_score1	6	0%
engine1	3	0%
get_minimax_move2	5	0%

People & History

People (1)

Maintainer (1)

Luigi Annicchiarico

Maintainer, Author

Authors (1)

Luigi Annicchiarico

Maintainer, Author

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.3.0Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-06-02
Total releases: 1 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.3.0
Bundled data: 1.6 KB / 1 file
Download size: 75 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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