Can I see all my chess games in one place?
Yes. ChessSum is designed to combine imported game history from several Chess.com and Lichess accounts in a single workspace. This includes several usernames on just one platform. It is useful when your main account, older account and practice account each hold only part of your history.
A practical example
Suppose your main account has 120 included games, your second account has 80 and your Lichess account has 90. If these are distinct games and all three imports are complete, that selection contains 290 games. This is an illustration, not a claim about a real member's account.
A match between two selected accounts is the same game, not two games. ChessSum counts it once as self-play and does not add both a win and a loss to your combined result. Consequently, self-play can make games differ from the sum of wins, losses and draws.
Connect the accounts you actually use
Open My workspace → Accounts. Choose the source platform and add each username. Check spelling and source identity: identical usernames on Chess.com and Lichess do not necessarily belong to the same person. Keep followed opponents separate from your own accounts so your personal view represents your play.
Check coverage before comparing totals
- Look for the last successful synchronization and whether the historical import is complete.
- Select the same date range and timezone when comparing against another view.
- Check time-control filters. A blitz-only view will not include rapid games.
- Remember that unsupported variants, aborted games and unknown results do not contribute to the included standard-chess totals.
Do I need to share a password?
No chess-site password is needed to import public games by username. Confirming ownership is a separate step. Importing another player's public record does not make that player a registered ChessSum member or give you ownership of their account.
From a combined history to useful feedback
After importing, you can inspect results across accounts and choose games for analysis. Analysis is subject to your account's available allowance. Recommendations are guidance to review and practice, not a guarantee of better results.