AI Coach | Lumichess

Opening 29%

Your White repertoire scores at or above 50% everywhere. As Black, one line stands out: your worst line is the Caro-Kann, at 29% over 14 games. You leave known theory on move 6, about three moves before your opponents do.

Strongest openingQueen's Gambit61%win rate

Weakest openingCaro-Kann29%win rate

All openings6 lines · sorted by win rate

OpeningWinDrawLossWin rateAccBook

Queen's GambitWhite · 18 games61%11%28%61%816.8 ply

Italian GameWhite · 24 games58%17%25%58%847.5 ply

1…e5 ClassicalBlack · 11 games55%18%27%55%785.4 ply

London SystemWhite · 12 games50%17%33%50%765.9 ply

Sicilian NajdorfBlack · 16 games47%13%40%47%725.1 ply

Caro-KannBlack · 14 games29%14%57%29%613.2 ply

Tactics 39%

You spot pins and skewers reliably. Back-rank threats are the blind spot, and you catch only 39% of them, on both sides of the board: you miss your opponent’s and your own.

Missed motifs5 motifs · sorted by misses

MotifFound vs missedMissedFoundDetected

Back-rank14939%

Forks121860%

Discovered attacks6754%

Pins62279%

Skewers51169%

Move classification · 1,540 moves

★ Best 412 ! Excellent 336 ✓ Good 498 ?! Inaccuracy 187 ? Mistake 78 ?? Blunder 29

Best game: 94.1% vs pawn_storm Worst: 61.8% vs BlunderBuss

Endgame 46%

Your endgame knowledge is average for your rating. The problem is what happens around it. 46% of your blunders land in the endgame, your clock arrives already empty, and five won games slipped because a simple trade was available and skipped. Technique, not theory, is the gap.

0%endgame accuracyopening: 84%, and you fade late

0%of your blunders land here23 of 48 blunders

0%clock left entering itavg across your games

missed simplifications: 5 chances to trade into a won endgame. The Conversion Gauntlet drills exactly these positions.

Advantage conversion64%

Resourcefulness23%

You convert only 64% of winning positions, and eight thrown wins in 40 games make this your most expensive habit. Recovering when behind is steadier: you save 23% of losing positions, so a few easy half-points are still on the table.

Advantage conversionconversion by advantage size

64%converted

+1.531 games21 converted · 10 let slip68%

+2.030 games20 converted · 10 let slip67%

+3.028 games18 converted · 10 let slip64%

+4.026 games16 converted · 10 let slip62%

Resourcefulnesshow often you save a losing position

23%saved

−1.529 games10 saved · 19 lost34%

−2.027 games7 saved · 20 lost26%

−3.024 games4 saved · 20 lost17%

−4.022 games2 saved · 20 lost9%

Time management 42%

You budget time well until about move 30. Then 42% of your games enter the sub-30-second zone, where your accuracy falls 23 points, and where most of those thrown wins actually happen.

When you’re low on time, your accuracy crashes 42% of your games reach the under-30-seconds zone, and that’s where most thrown wins happen.

Plenty of timeover 30s on the clock

↓−23 pts

Low on timeunder 30s: the cliff

Why: you spend your clock too early

OpeningMiddlegameEndgame% of clock spent

You315217

You reach the endgame with only 17% of your clock left, so you’re rushing the hardest part of the game.