Path A
Search by name
If they have a chess.com or Lichess account linked to their FIDE, ICF, or USCF profile, search jumps straight to their games. Coverage is still growing; otherwise, continue with public games.
Search a player How Chessco works
Your next opponent's public games can become a plan
Start from a player name or a few public games. Review account leads, build an evidence-backed preparation report, and move useful positions into practice before the round.
- Scout
- Prepare
- Practice
Start from what you have
A name is enough to begin. Public games make the search more specific
Path B
Search from public games
Paste a few PGNs when you do not know the account. Scout compares opening patterns within one selected platform and returns a ranked shortlist.
Search from games Games indexed
400,471,142
rated online games plus broadcast tournaments
Accounts ready to search
385,358
opening moves stored and searchable
Federation records indexed
762,413
official roster records, searchable by name
Searchable coverage
99.3%
target online accounts that are graph-ready today
Corpus totals checked Aug 23, 2026; searchable coverage snapshot Aug 23, 2026. Corpus totals refresh hourly as the index changes.
Scout. Prepare. Practice.
One path from a name to focused practice
Three steps take you from a player name to positions you can practice before the round.
Scout
Search federation records, then review known handles and clearly labeled account leads.
Prepare
Build an opening tree from available games and rank evidence-backed preparation signals by color, frequency, and freshness.
Practice
Turn the plan into positions you can rehearse against Maia, with a friend, or through a human practice challenge.
Inside Scout
How public games become account leads
Scout combines opening-pattern evidence with public profile facts, then presents a shortlist for human review.
Search anchors
The rare moves in the games you paste become search anchors. Everyone plays 1.e4; only a few answer it the way your opponent does, so uncommon choices narrow the field fast.
Style fingerprint
Each candidate account has a style record of the opening positions it reaches, how often, and how recently. Scout compares that record with the public games you provide.
Profile check
Finally Chessco checks the public profile: name, country, title, and rating. Contradictions demote a candidate; matching facts move it up the list.
Versioned holdout evidence
What has Scout measured so far?
In the current production-fidelity holdout, known accounts were searched using games excluded from their indexed evidence. With 10 supplied games, these were the measured Top-10 style-lead rates:
Chess.com, 10 PGNs
42.9%
known account appeared among the first ten style leads
Lichess, 10 PGNs
47.4%
known account appeared among the first ten style leads
Scout gives you leads, not proof. You make the final call.
Evidence g030-production-fidelity-holdout-20260719, captured Jul 19, 2026. Benchmark rates change only when a new versioned holdout is promoted.
See benchmark methodologyReady to prep your next opponent?
Start from a name or a handful of their games.