TF

ENGINE-MOVE CHALLENGES

TiltFish

♞
Stockfish 18Adaptive opponent
—
1800 ELO
♙
YouWhite
—
1200 RATING

NEW GAME

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PREFERENCES

Game settings

CHALLENGE RULE

PREFERENCES

Top moves remain available in post-game analysis.

Games finished: 0 · Wins: 0 · Best low: —

TILTFISH ACCOUNT

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WELCOME TO TILTFISH

Strong moves tilt the matchup.

Play a move. TiltFish compares it with a short Stockfish search and gives it a quality band. Qualifying moves lower the engine's simulated strength.

  1. Select one of your pieces, then its destination.
  2. Watch the engine-strength meter change.
  3. Review the game afterward to practice mistakes.

ELO means Stockfish's native strength control. SIM means TiltFish is simulating weaker play below Stockfish's native limit.

CHECKMATE

Game over

The king has fallen. See what decided the game.
COACH

PRACTICE POSITION

Let’s understand the turning point.

Your move——
Better line——

Try the position again and find the move that keeps the advantage.