Caïssa Board

Caïssa Board – A Modern Chess GUI The Evolution of a Modern Chess GUIGraphical user interfaces (GUIs) for chess first appeared in the 1990s. While chess engines became vastly stronger over the decades, the GUIs themselves remained largely unchanged. Caïssa Board was created to rethink how a chess interface presents information: 1. Visual Tactics First: It started with a core idea: make tactics visible. Instead of forcing players to read raw engine numbers, Caïssa Board outlines forks, pins, and hanging pieces directly on the board.2.

Variants & Lichess: Expanded to support 13+ chess variants in both 2D and 3D, along with native Lichess integration for playing online.3. Database Engine: A dedicated database system was added, enabling fast 20-move position searches and custom Lua scripting.4. Modding System: A built-in Mod Manager and GitHub toolkit were introduced to help players create custom piece sets, boards, and maps.5. The 3D Online Club: Online matchmaking was redesigned into Chess Island, a 3D world where players walk up to physical chessboards as 3D characters.6.

LLM & Accessibility: Finally, experimental AI analysis was integrated to evaluate the moves, alongside Text-to-Speech (TTS) accessibility for blind and low-vision players. Analysis & Study ToolsTactical Outlining: Visually highlights tactical motifs, forks, pins, threats, and hanging pieces directly on the board squares.LLM Analysis Mode: Uses large language models to evaluate a position based on chess engine evaluation.…