Prepare against the player you are actually facing
Enter your opponent's FIDE ID. Chess Genie finds their tournament games, merges what chess-results and Lichess broadcasts each hold, and builds the opening tree they really play — with the moves that cost them most already marked.
What the preparation shows you
- Their games, not a database average: Found by FIDE ID across chess-results and Lichess broadcasts, then merged. Relayed events often hold moves chess-results never received, and those copies arrive with clocks and engine evaluations attached.
- Where they actually go wrong: Each branch carries the average evaluation their own moves gave away, and the worst moment anywhere below it. That number is about their play, so it means something long before the sample gets large.
- Play the lines before the round: Step through their tree on a board as the colour you will have. Leave their games and the board says so, so you always know when you are off their book.
Where to go next
- Build an opening repertoire: Turn what you find into prepared lines you own, then drill them before the round.
- Practise an opening: Play the opening you expect against replies taken from real games at your level.
Questions players ask
What do I need to look someone up?
Their FIDE ID, which is on their FIDE profile or on the tournament's pairing page. A free account covers a few lookups a day, and opening a player somebody has already looked up costs nothing.
Will it find every opponent?
No. Most amateur events publish pairings but never the moves, so the number of games found is usually well below the number of tournaments played. Players who appear in broadcast events have the deepest coverage.
How is this different from an opening explorer?
An explorer averages thousands of players. This is one person's own games, so it shows the lines that particular opponent chooses and the positions they have handled badly before.