PGN Move-by-Move Analysis

Paste a PGN game below to dissect it move-by-move. The compiled browser engine solves each position synchronously, producing structured JSON-RPC summaries and translating tactical variables into human-understandable diagnostics.

🔴 Loading Prolog Constraint Solver...
Delay: 2.0s
Moves Index
Paste a PGN and click "Load Game" to generate index...
ℹī¸ Please load a PGN game and step through the moves to trigger natural language tactical reports.
  • ℹī¸ Select moves to analyze attacks created by our side.
  • ℹī¸ Select moves to analyze tactical threats posed by the opponent. 
JSON Tactical payload will appear here...
Tactical ranking of all legal moves in this position:
Show:
Rank Move Classifications Score
Please load a PGN game and step through the moves to trigger Top Moves analysis.
💡 Click on a row to preview the move's trajectory on the board.