TrueElo Chess Analyzer — practical win rates at your level

What TrueElo does

An engine tells you what a perfect player would get from a position. You are not that player, and neither is your opponent. We read the same position against hundreds of millions of rated Lichess games at your level and your clock, and tell you what players like you actually score from it.

That is your True Score. The engine’s own answer — the Theory Score — sits beside it, never instead of it, because the two disagreeing is the whole point: a position the engine calls lost can be one you win most of the time.

Set the position above, pick your level and your clock, and every move is ranked by what it wins in practice. Star the lines you want and drill them until you play them without thinking.

Common questions

What is True Score?

What the position is actually worth to you: how players at your level really do from it. The engine answers a different question — the Theory Score, what it is worth if both sides play near-perfectly. You get both, because they often disagree.

How is win rate calculated?

From real games on Lichess, free for anyone to use. We keep only the ones at your level and your clock, then weigh them against the engine’s read — so a lucky run cannot outrank an opening proven over thousands of games.

What rating should I use?

Your Lichess one. Pick your level and every number on the site moves to it. Coming from Chess.com, your Lichess rating is usually a few hundred points higher — pick the band that matches.

Is TrueElo free?

Yes. Everything on the site today is free: the analyzer, the opening statistics, and signing in with a free Lichess account, which is what tunes every number to your level. TrueElo is built to sustain itself from players it demonstrably improves, so a paid layer is coming — for ongoing analysis of your own games. The price is not settled, and no figure appears until it is.

What is a Sharp position?

One where the move you pick changes what you score. Spend clock here and find the True Move; elsewhere any sensible move does about as well. We mark them so you know which is which.

How do I build an opening repertoire?

Take the True Move at each turn, star the line, and it goes into your Drill schedule. Build from moves you can actually remember under a clock, not from theory you will not recall.

Why not just use raw win rates from Lichess Explorer?

Because a move that won 60% of fifty games is a worse bet than one that won 55% of five thousand, and Explorer shows you both the same way. We rank by the worst a move would still get, 90% confident, so a lucky run cannot jump the queue.

How is TrueElo different from Lichess Explorer?

Explorer hands you the numbers and leaves the reading to you. We do the reading: which move to play at your level, what the engine thinks of it, and whether this is a position where the choice even matters.

Where to go next

• Opening statistics — win rates for every opening, by level and time control.
• Gambit viability — which gambits still pay at which levels, and where they stop.
• Drill — replay your starred lines until you play them without thinking.
• About TrueElo — where the games come from, and how we read them.