Chess Intelligence

Understanding your Chess DNA

Understanding your Chess DNA Your Chess DNA is a multi-dimensional fingerprint of how you play. We compute it from every game we have analysed for you, weighted by recency and time control. The dimensions DNA scores live on a 0-100 scale. Higher is not always better — the dimensions describe style, not skill. A 95 on "Tactical Aggression" means you favor tactical play, not that you are stronger than someone with a 70. The major dimensions: - Tactical Aggression — how often you go for sharp lines vs solid play - Endgame Conversion — how reliably you convert winning endgames - Time Pressure Resilience — accuracy in the last quarter of your clock - Opening Preparation Depth — how deep your moves match opening theory - Positional Patience — willingness to maneuver in closed positions For the full taxonomy and the math behind each score, see our Chess DNA explainer page. Why it changes over time DNA is recomputed each time we analyse a new batch of your games. If you have been studying endgames or playing more rapid games, expect those dimensions to shift.

How Game Review annotates your moves

How Game Review annotates your moves When you import a game or play one on TacoChess, our analysis pipeline runs Stockfish over every move and tags it with a quality label. The labels - Brilliant (gold) — a move that is the best, hard to find, and either tactical or non-obvious. Most games have zero or one of these. - Best (green) — the engine's top choice - Good — a reasonable move that does not lose the position - Inaccuracy — small drop in evaluation - Mistake — meaningful drop, often turning equal into worse - Blunder (red) — a move that loses material or the game What "engine eval" means The number next to each move (+1.2, -0.4, #3) is Stockfish's evaluation in pawn units — positive means White is better, negative Black. #3 means mate in 3. Why labels are sometimes wrong Two reasons: 1. Time-control mismatch. A "blunder" in a 60-second bullet game may be the only practical option. We weight evaluations by time control where we can. 2. Engine depth limits. Our default analysis depth is 18 plies. For complex tactical sequences this sometimes misses lines a deeper search would find. Pro accounts can request "deep" re-analysis (depth 32) on any game.