Opening practice
Chess opening practice that adapts to your mistakes
The fastest way to find a gap in your opening knowledge is to face the position and make a decision. Blundr turns your opening study into repeatable, focused practice.
See the board, not just the notation
Train from positions and move sequences so your knowledge transfers to the board. The opening becomes a set of recognizable situations, not a page of text.
Keep the practice focused
Choose an opening, work through its key branches, and use short sessions to keep the ideas active without overwhelming your study time.
Use mistakes as the queue
A missed move is useful information. Bring it back into review and spend attention where your repertoire is least reliable.
Connect study to play
Every public opening guide leads into a training path, so exploration can become practice while the idea is still fresh.
Turn understanding into recall
Blundr brings the positions you miss back into practice so you can build an opening repertoire that survives real games.
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