Chessperiment — AI-Powered Chess Variant Creator & Abstract Strategy Game Engine | Chessperiment

v2.0 Beta Live<br>Build the Game.<br>Break the Rules.<br>The ultimate visual logic sandbox for inventing, testing, and sharing chess variants. No coding required.<br>Start DesigningGuest Access

Rule #1<br>L-Jump + Explosion

Visual Logic Editor<br>Connect blocks to define piece movement, capture rules, and conditional triggers — no coding. Think Scratch, but for chess rules. Supports leapers, riders, and complex fairy piece behaviour. Not presets — actual customizability.

Custom Pieces & Boards<br>Design pieces with unique sprites, define any movement pattern, and build boards of any shape — rectangular, hexagonal, or custom-cut topologies. Every rule is yours to define.

Stockfish Analysis<br>Your custom game is evaluated by the Stockfish engine — even when the rules are completely non-standard.

Instant Multiplayer<br>Generate a room link and share it. Your opponent joins in their browser, no install needed. Playtest a new variant in minutes.

Help cover hosting<br>Buy Me a Coffee<br>Chessperiment costs about €15/month to keep online. If it helped you build, test, or play something fun, you can chip in.

Voluntary support via Buy Me a Coffee. External checkout.<br>Support Chessperiment