Watch the moves. Call the blunder.
A short sequence of moves plays out. Somewhere in it, someone blunders. Your job is to call it the moment it happens — the same alertness you need in your own games, when your opponent's mistake goes by in a second.
What it trains
- Following a game move by move without losing the thread
- Noticing the moment a piece becomes loose
- Real-time alertness to your opponent's mistakes
How it works
- 01
A position appears. Step through the moves one at a time.
- 02
Call it as soon as you see the blunder.
- 03
See whether you caught the right move and why it was a mistake.
Why it stops blunders
Club players miss free material because they're not watching for it. Calling blunders as they happen trains you to evaluate every move your opponent makes — not just your own.
FAQ
- What if I stop too early?
- Then it counts as a miss and you'll see where the real blunder was. Patience is part of the skill.
- Are these real games?
- Yes. The sequences come from real games.
- Is it free?
- You can try it without an account. Free accounts get daily drills; Pro is unlimited.
Five minutes. One habit. No signup.