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How Chessco works

From your pairing to a plan

Find the online accounts your opponent plays on, see the openings they choose, and practice those positions before the round.

  1. Scout
  2. Prepare
  3. Practice

Start from what you have

Three ways to find their accounts

Their name

Search by name

Search the federation player lists by name for free. Open a player, then search for their Chess.com and Lichess accounts for 1 credit.
Search a player

Their games

Search by their games (PGN)

Load their tournament games. Scout compares the openings with online accounts and lists the accounts that play them. Add their name as well: it helps when their online profile shows it. 1 credit per search.
Search from games

One of their accounts

Search from an account you know

Know an old or second account of theirs? Scout reads its games and lists other accounts that play the same openings. 1 credit per search.
Search from an account

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.
1

Scout

Find your opponent by name, by their games or from an account you know, and get a short list of accounts that may be theirs.

2

Prepare

See the openings an account plays with White and with Black, how often, and how recently. Once you sign in, the report also compares their games with your repertoire to look for verified weaknesses. Revealing one costs 1 credit.

3

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.

Tested October 16, 2026

What Scout's latest test measured

We took 150 Chess.com players whose accounts we already hold and searched with 10 of each player's newest online games only. Names, ratings and account details were removed.

The right account came first for 66 of 150 players, and was in the first three for 71.

That test used online games. Tournament games are harder: in smaller tests on new players, games alone usually missed the account, because many players open differently online or have played few online games. When the account's public profile shows the player's real name, the name and FIDE ID in your PGN usually find it. Many profiles show no name, and then only the games can.

  • Chess.com only. Lichess has not been tested this way yet.
  • Only accounts already in our index were tested, so your opponent's account may not be searchable yet.

Scout gives you leads, not proof. You make the final call.

See benchmark methodology

What it costs

  • Searching the federation player lists by name is free.
  • Each verified weakness you reveal in an opponent's prep report costs 1 credit.
  • Each account search costs 1 credit, whether it starts from a name, their games or an account you know.
  • New accounts get 10 free credits after confirming their email.