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    Trap Lab: stop the trap, then spring it

    Why we teach traps this way Show
    • Stopping a trap builds a habitBefore every move, ask: what does my opponent threaten? That one question saves more games than any trick.
    • Any safe move countsReal games rarely have one right answer. We accept every move that doesn't lose, so you learn to judge, not memorise.
    • Springing it shows whyPlaying the trap from the other side makes the weakness (f7, an open file, a missing escape square) easy to see next time.

    Choose a trap

    Common under 1400 · 25

    Famous traps and gambits (rarer under 1400) · 20

    White sacrifices a knight on f7 in the Two Knights Defence to drag the black king into the open. Black walks into it by recapturing on d5 with the knight. (0/10)

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    Trap Lab FAQs

    Frequently Asked Questions

    They help by building habits, not by winning with tricks. Each trap shows one habit that strong players have: check what your opponent threatens before you move, look after the weak f7 and f2 squares, and don't grab material that opens lines to your own king. Learning to stop a trap trains those habits; learning to spring it shows why they matter.

    In a 'stop it' round, any move that isn't a mistake. We scored every legal move in each position with Stockfish ahead of time. On Normal, a move counts if it is within about one pawn of the best move and doesn't leave you clearly worse. Easy allows a little more, Strict a little less. After a right answer you'll see the other good moves too.

    Anyone who knows how the pieces move: adult improvers, club players and children from about 7. The traps are the ones players under 1400 meet most.

    No. It's free, with no sign-up. Your progress is saved in this browser only.

    Every legal move scored by Stockfish 18 (depth 20, or depth 18 for the famous traps and gambits; close calls re-checked deeper). Board pieces: cburnett (BSD licence).