Notation

A chess coaching application that analyzes every move and explains positions in plain English, helping players improve by identifying patterns and habits. It targets individual chess players of all levels, from beginners to advanced, on iPhone, iPad, and Mac. It differentiates by using on-device analysis with Stockfish and coaching frameworks, then having a language model articulate the pre-computed insights, avoiding hallucinations. It offers a one-time purchase with no subscription, ads, or tracking.

Key features

• Watches every move and game
• Explains positions in plain English
• Identifies recurring habits and patterns
• Uses Stockfish engine for evaluation
• Three coaching frameworks for analysis
• Language model articulates coaching brief
• Shadow feature plays like you
• Saves checkpoints of your play
• Calibrate to rivals (coming soon)
• Beginner-friendly explanations that grow
• Roster of named opponents
• Plays physical board with Chessnut
• Three engines under the hood
• Post-game review move by move
• Generative ambient music