Stockfish UCI Multithreaded Chess Arena
High-performance UCI chess engine running inside a background Web Worker with evaluation streaming, PGN ingestion, and valid move highlighting.
Play against an isolated UCI Chess Engine running completely in a background Web Worker. The board maintains a strict 1:1 square aspect ratio across all viewports and dynamically adopts the active Carbon theme palette.
1. Analysis-Enabled Match with PGN Ingestion
This instance is configured with depth="6", analysis="true", and loads the historic 1851 Immortal Game (Anderssen vs. Kieseritzky) via PGN:
Interactive Match — Analysis Enabled (Depth 6)
Rigid aspect-ratio 1:1 chessboard with valid move target highlighting, theme-adaptive styling, and background Web Worker UCI analysis.
2. Minimalist Board (Visual Analysis Disabled)
When embedded for casual puzzle solving or minimalist UI embedding, the visual telemetry and evaluation bar can be toggled off via analysis="false":
Minimalist Match — Clean Board (Analysis Disabled)
Rigid aspect-ratio 1:1 chessboard with valid move target highlighting, theme-adaptive styling, and background Web Worker UCI analysis.
Architectural & Standards Compliance
- Rigid Dimensions: Strict
aspect-ratio: 1 / 1prevents any board distortion. - Theme Adaptability: Board squares and piece shadows bind directly to Carbon
--cds-*tokens. - Valid Move Guidance: Selecting any piece highlights valid forward squares and capture targets with high-contrast indicator rings.