Chess Board Builder & FEN Position Studio
Place pieces on board, input or export FEN strings, and analyze or play any custom chess position with Stockfish 16.
Build and edit custom chess positions with our free Chess Board Builder. Setup any position, input/export FEN strings, and analyze with Stockfish 16.
Key Features
- Intuitive drag-and-drop piece palette (White and Black pieces)
- Instant FEN import and export with clipboard copy
- Clear board, initial setup, and random position shortcuts
- One-click 'Analyze with Stockfish' or 'Play Against AI' from custom setup
Rules & Strategy Guide
The board builder allows coaches, students, and tournament players to set up positions from books, games, or puzzles to analyze with an engine.
- Both White and Black must have exactly one King for the position to be legal for play.
- Pawns cannot be placed on the 1st or 8th ranks.
Frequently Asked Questions
What is a FEN string in chess?
FEN (Forsyth-Edwards Notation) is the universal standard for describing a specific board position, recording piece placement, active color, castling availability, en passant targets, halfmove clock, and fullmove number in a single line of text.
Explore other chess modes on xGames:
Tournaments |
Play vs AI |
Blitz Chess |
Bullet Chess |
Rapid Chess |
Tactics Puzzles |
Endgame Studio |
Chess960