Licenses & credits
Blockerino
© 2025–2026 Nerdlin. All rights reserved.
Fonts
All fonts are used unmodified under the SIL Open Font License 1.1 (openfontlicense.org).
Press Start 2P: Copyright 2012 The Press Start 2P Project Authors ([email protected]).
Silkscreen: Copyright 2001 The Silkscreen Project Authors (github.com/googlefonts/silkscreen).
Pixelify Sans: Copyright 2021 The Pixelify Sans Project Authors (github.com/eifetx/Pixelify-Sans).
Space Mono: Copyright 2016 Google Inc.
Open-source libraries
Blockerino is built with React Native, Expo, React, Jotai, Supabase JS, Reanimated, Gesture Handler, the Discord Embedded App SDK and other open-source libraries, mostly under the MIT license (some under BSD, ISC or Apache-2.0). The complete list with versions and licenses is in THIRD_PARTY_NOTICES.md in the project repository (github.com/Nerdlin/blockerino).
chess.js
Copyright (c) 2025, Jeff Hlywa ([email protected]) All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Stockfish
The master chess bots and the game review use Stockfish 10 (stockfish.js 10.0.2), copyright the Stockfish authors, licensed under the GNU General Public License version 3. It runs unmodified as a separate program that Blockerino talks to over the UCI protocol. The full license text ships with the app (assets/licenses/stockfish-COPYING.txt) and is at gnu.org/licenses/gpl-3.0. Source code: github.com/nmrugg/stockfish.js (tag v10.0.2) and github.com/official-stockfish/Stockfish (sf_10).
Chess puzzles
Puzzles are taken from the Lichess puzzle database (database.lichess.org), released into the public domain under CC0.
Music and sound effects
The music and sound effects of Blockerino were produced with AI tools. No recordings from third-party sound libraries are included.
Services
Accounts and data run on Supabase. Sign-in uses Discord and Google. Builds, updates and push delivery use Expo and Firebase Cloud Messaging. Linked chess.com ratings come from the public chess.com API. These are independent services; Blockerino is not affiliated with or endorsed by them.