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Wipes mastered marks + review queue + drill 5 answers. Imported games and other drills untouched.
🏁 Puzzle Race beta
— best
90 seconds. Solve as many tactic moves as you can. Pick your mode:
Pick your drill
Not quite — the opponent's threat got through.
Here's what was threatening:
Now — find the defence.
Why it loses:
Best was
What was threatening (5 ply):
Here's what would have happened:
🎯 What were they threatening?
Explore the position
—
Top engine line:
Check the consequences! Look at what they are threatening, pick the best move and check the opponent's best, forcing response.
🔍 Engine analysis
…
Stockfish · multipv 3
Your moves:
(drag any piece to explore)
to move.
0.0s
End session
🔍 Pre-commitment check
—
tier ·
You are . Is this a win, a draw, or lost?
Pick one. You'll see the right answer either way.
✗ You guessed ? — actually it's a ?. Try to play it out anyway.
You are . Goal:
.
📖 From your notes
Key moves:
🔍 Engine analysis
…
Stockfish · depth ~16
Your moves:
(drag any piece — either side — to explore)
From your game vs your opponent — find the move you missed
Last time
you played ?
(lost 0.0 pawns). Find a better move.
to move.
0.0s
End session
Why your move loses (engine reply):
Engine's recommended line:
🔍 Engine analysis
…
Stockfish · multipv 3
Your moves:
(drag any piece to explore)
Done!
0%
0 fixed
0 thoughtful
0 still wrong
Click the piece or square that just became weak.
Done!
0%
0 correct
0 fast (under 10s)
0 missed
Level 1
6–8 pieces · shown for 6 seconds
Watch the board for a few seconds, then it disappears. Put the pieces back where they were — tap a piece then tap a square, or drag it on. Do well over a few goes to unlock harder levels with more pieces.
Checks & captures you spotted
Drag a piece onto its check/capture square — or tap the piece then the square. Mark as many as you find.
What you missed
Loose pieces you tapped
Tap each piece that's hanging or can be won — yours and your opponent's. Tap again to un-mark.
What you missed
90
seconds
0
score
PB —
0
streak
White to move
Fix Race Mistakes
🏁
Race finished!
0
score
0
max streak
—
peak rating
0
puzzles solved
🔥 Patterns crushed
⚠️ Watch out for
Failed puzzles will appear in your review queue next time you do a cycle drill.
Level 2
0
/
13
correct
White to move
0
streak
🎯
Accuracy Race complete!
0
correct
0
attempted
0%
accuracy
0
best streak
—
time
Done!
0%
0 perfect
0 good
0 acceptable
0 missed
0 thoughtful (8s+)
Done!
0%
0 correct
0 thoughtful answers
0 fell for distractor
0 played the blunder
🏆 Trophy Cabinet
0 🥇
0 🥈