Reality Check — real positions from real games
Real games. Real decisions.
Not engine-perfect.
Every other trainer punishes you for missing Stockfish's top move. Reality Check trains you on positions from real master games and grades the way humans actually decide — for ideas, creativity and consistency.
Why Reality Check
Built on what actually makes you better
Real positions, real games
Every drill comes from an actual master or over-the-board game — not an artificial construction.
Graded like a human
We reward the right idea, not just Stockfish's #1 move. Creativity and consistency count.
One number across it all
Your RC Rating fuses every mode into a single score that actually goes up.
The modes that set us apart
Train the way the game is really played
Simulator
Play a whole GM game — and see how you measured up.
Replay a grandmaster's game move by move. At every turn you make your own decision, and we grade it against what the master actually played — ending with an Excel-style accuracy report of you vs the GM. Physical DGT board supported.
Try the Simulator →Masters
The original reality check.
Drop into a real position from a master game and find your move. We grade you the way a strong human is judged — for the idea, not for matching Stockfish's top choice.
Play a master position →Decision Lab
Back the human or the machine.
Three positions a day where a grandmaster disagreed with Stockfish. Bet on the GM or the engine, then find out who was right. NYT-Connections for chess — a daily habit you'll want to share.
Join the waitlist →Masters' Blunders
Beat today's GM blunder.
Masters' Blunders — find the move a super-GM missed, in games from this week's top tournaments.
Find today's blunder →What's inside
Eleven ways to get better
Improve
Puzzles123,000+ rated puzzles from real games.Strategy TestHow well do you judge a position?ChallengesCurated sets that target one skill at a time.TRacerA rating check against the clock.Blunder CheckFind the blunder. Fresh sets monthly.Stop training for the engine's move.
Start training for yours.
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