Chesy 0.1.1

arm64 Android build.

chesy-0.1.1-arm64.apk — 9.4 MB
SHA-256 1c456930a3cb81ba83a3e1878da11b84077304bbb5859adac735b324517c7e17
versionCode 1001

Changes since 0.1.0:

• Language packs are fetched from an address that resolves. Every language other than English previously failed to download.

Installing:

1. Download the APK on the phone.
2. Android will ask permission to install from your browser or file manager; that prompt is normal for an app not coming from the Play Store.
3. On first launch Chesy downloads the chess engine's neural networks, 107 MB, once. Best done on Wi-Fi. Everything after that works offline.

The engine is real Stockfish 18 running on the phone. Games are analysed locally and never uploaded.

Signed with the project's release key, SHA-256 fingerprint:
af93a8b1b841bc4eb6bc4b38b7d39e8a1a0ab6ef3828cc6edd795ad5244ae90d

Chesy 0.1.0

First Android build. arm64 only (any phone from roughly the last eight years).

chesy-0.1.0-arm64.apk — 9.4 MB
SHA-256 426ae1bef69ddb68fb679d2fd5b4aee00a2957a2189a6469cb4f1f1577a9d67e

Installing:

1. Download the APK on the phone.
2. Android will ask permission to install from your browser or file manager; that prompt is normal for an app not coming from the Play Store.
3. On first launch Chesy downloads the chess engine's neural networks, 107 MB, once. Best done on Wi-Fi. Everything after that works offline.

The engine is real Stockfish 18 running on the phone. Games are analysed locally and never uploaded.

Signed with the project's release key, SHA-256 fingerprint:
af93a8b1b841bc4eb6bc4b38b7d39e8a1a0ab6ef3828cc6edd795ad5244ae90d

This file was replaced after publication to fix language pack downloads, which pointed at a hostname with no DNS record. If you downloaded before that, re-download to get the working build.

Engine networks (assets-v1)

Stockfish 18 NNUE networks, downloaded by Chesy on first run.

These are data files, not code. They are kept out of the app package because
together they are 107 MB of what would otherwise be a 109 MB engine binary;
shipping without them puts the APK at 9.4 MB and the engine searches
identically once they are supplied at runtime (bench 16 1 12 returns
1,364,733 nodes either way).

file	size	sha256
nn-c288c895ea92.nnue	108,919,594	c288c895ea924429ea9092e3f36b2b3c1f00f2a3a4c759ff7e57e79e3b43e4a7
nn-37f18f62d772.nnue	3,519,630	37f18f62d772f3107e1d6aaca3898c130c3c86f2ab63e6555fbbca20635a899d

The app verifies both checksums before installing either file. The filenames
and tag are referenced by app/src-tauri/assets-manifest.json and must not
change; publish a new tag instead.

Upstream: https://github.com/official-stockfish/Stockfish (GPLv3).