About Rocket Chess

Rocket Chess An offline chess analysis app for Android. It runs Stockfish on the device. Package ID: com.uncosens.rocketchess. Status: M5 (release checks). All v1 features are in. A real 16 KB page device run and store signing are still open. License GPL-3.0. See LICENSE. Third-party parts are listed in THIRD_PARTY.md. Build Stockfish Needs Linux or WSL, git, make, curl, and Android NDK r28 or newer. Source: Stockfish sf_19, commit edb0d9db6731067ec50ce619ff372b463bc4dd5d. Command: make net then make build ARCH=armv8 COMP=ndk. The NNUE net is embedded in the binary. Output: build/stockfish/stockfish-arm64-v8a, plus build.log and build-info.txt (hash, NDK version, ELF type). Tested setup: WSL2 Ubuntu 26.04.1 LTS, NDK r30 (30.0.16248370, android-ndk-r30-linux.zip SHA1 5107f898313790e449e87eee2183d9a20602dee9), clang 21.0.0, GNU Make 4.4.1. Last build (2026-10-17): ELF 64-bit aarch64 PIE, Android 29, 104,999,448 bytes (99,641,448 after llvm-strip), sha256 6bef3cb2e94e59d2041209f65e4cc15862f12535384c7dd4cc0d8491dece341e (unstripped). NNUE net (98,511,183 bytes) found byte-for-byte inside the binary. LOAD segments aligned to 16 KB (0x4000). Needs only libc.so, libm.so, libdl.so. The script also writes a stripped copy to app/src/main/jniLibs/arm64-v8a/libstockfish.so (sha256 e35bd90a…f0bb). This file is not in git. Patches, if any, go in stockfish-patches/*.patch. The NDK build…

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