Blitz · last 12 months · updated 12-11-26
chesspieler
Blitz rating
Your biggest leaks
Ranked by how many games they cost you. We don't care about your rating. We care about move 23.
- 01
Converting won games
You reached a winning position (85%+) in 1626 games and didn't win 679 of them. 55% of all your losses started from a won game.
58%of winning positions actually wonTrain this → - 02
Missing the opponent's threat
Hung pieces, 2–3 move combinations, forks and mates you didn't see. Your own missed tactics decide another 17%.
47%of lossesTrain this → - 03
Middlegame is where it goes wrong
5.1 blunders per 100 moves in the middlegame, 3.5 in the endgame, 1.3 in the opening.
4×more blunders than in the openingTrain this → - 04
Englund Gambit, playing White
Your weakest common opening line (whoever chose it), against 49% overall.
41%score over 86 gamesBreak it down →
Blunders are temporary. The PGN is forever.55% of your losses started from a won game.Your opponent saw it. Stockfish saw it. You did not.Why you lose
The biggest single error in each of your 1064 losses.
Winning positions
Games where you were 85%+ to win at some point. Then something happened.
Final result from a winning position
390 of the games you didn't win ended on time.
Pieces lost to mistakes and blunders
Clock and phase
Blunders per 100 moves.
By time left on your clock
By phase of the game
By thinking time (1 min+ on clock, after the opening)
Long thinks blunder more because hard positions take longer. This isn't a reason to play faster.
Tilt and sessions
Score counts wins plus half of draws. Overall: 49%. A session is games less than 45 minutes apart.
By result of the previous game
By game number in a session
By time of day
Openings
You heavily favour the Queen's Pawn as White, and most often face the Indian, whereas you lean into the Scandinavian and the French as Black. Click any opening to see what it says about your game.
Openings with 15+ games. Win chance after move 12 shows whether you leave the opening better or worse.
| Opening | As | Games | Score | Win chance, move 12 | Blunders / game |
|---|---|---|---|---|---|
| Queen's Pawn Opening | white | 482 | 52% | 55% | 1.25 |
| Scandinavian Defense | black | 292 | 45% | 50% | 1.26 |
| French Defense | black | 216 | 48% | 51% | 1.36 |
| Indian Game | white | 195 | 52% | 55% | 1.12 |
| Alekhine's Defense | black | 118 | 49% | 51% | 1.33 |
| Queen's Pawn Opening | black | 108 | 43% | 51% | 1.01 |
| Englund Gambit | white | 86 | 41% | 60% | 1.57 |
| London System | white | 74 | 66% | 51% | 0.97 |
| Queen's Gambit | black | 70 | 44% | 47% | 1.43 |
| Modern Defense | white | 44 | 44% | 59% | 1.32 |
| London System | black | 32 | 47% | 48% | 1.31 |
| Pirc Defense | black | 30 | 55% | 44% | 1.07 |
| Old Benoni Defense | white | 26 | 73% | 50% | 0.85 |
| English Defense | white | 25 | 56% | 53% | 1.32 |
| Indian Game | black | 22 | 41% | 51% | 0.82 |
| King's Fianchetto Opening | black | 21 | 62% | 62% | 0.95 |
| Colle System | black | 21 | 62% | 46% | 0.76 |
| English Opening | black | 19 | 29% | 47% | 1.47 |
| Caro Kann Defense | white | 19 | 47% | 51% | 1.26 |
| Pirc Defense | white | 18 | 44% | 52% | 1.11 |
| Van t Kruijs Opening | black | 17 | 50% | 50% | 1.00 |
| English Opening | white | 16 | 34% | 53% | 1.19 |
| Dutch Defense | white | 15 | 73% | 47% | 0.93 |
| Offbeat openings | white | 15 | 30% | 41% | 1.27 |
| Reti Opening | white | 15 | 50% | 57% | 1.73 |
The evidence
Recent examples of each main loss cause. your move Stockfish's move
Hung a piece (left it undefended)
Win chance 53% → 6% · clock 1:39
vs Hornpiece (1471) · 12-11-26 →
Win chance 69% → 34% · clock 1:22
vs DrTsoul (1456) · 19-10-26 →
Win chance 78% → 40% · clock 0:10
vs bedri1984 (1506) · 05-10-26 →
Missed a tactic / only move
Win chance 60% → 23% · clock 2:46
vs SquanchGames (1428) · 12-11-26 →
Win chance 56% → 33% · clock 2:40
vs Jerm2007 (1437) · 12-11-26 →
Win chance 82% → 21% · clock 1:51
vs McAttack1776 (1455) · 11-11-26 →
Big positional error (no simple tactic)
Win chance 62% → 38% · clock 1:45
vs ryan126836 (1474) · 18-10-26 →
Win chance 84% → 51% · clock 2:45
vs anadhlani (1512) · 05-10-26 →
Win chance 68% → 39% · clock 1:04
vs rberonesjr75 (1507) · 05-10-26 →
Walked into a fork
Win chance 92% → 16% · clock 1:42
vs Saliim19 (1483) · 18-10-26 →
Win chance 69% → 12% · clock 2:42
vs gagsb (1531) · 25-08-26 →
Win chance 50% → 8% · clock 2:56
vs darkodanicic (1545) · 25-08-26 →