Created by potrace 1.16, written by Peter Selinger 2001-2019

Blitz · last 12 months · updated 28-09-26

chesspieler

Blitz rating1530-102 in 12 months
Games analysed2,445every move, Stockfish 19
Won · lost · drawn1141·1178·12649% score
Blunders per game1.2212-month average

Blitz rating

120013001400150016001700
OctDecFebAprJunAug

Your biggest leaks

Ranked by how many games they cost you. We don't care about your rating. We care about move 23.

  1. 01

    Converting won games

    You reached a winning position (85%+) in 1797 games and didn't win 743 of them. 55% of all your losses started from a won game.

    59%of winning positions actually wonTrain this →
  2. 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 18%.

    46%of lossesTrain this →
  3. 03

    Middlegame is where it goes wrong

    5.0 blunders per 100 moves in the middlegame, 3.5 in the endgame, 1.2 in the opening.

    4×more blunders than in the openingTrain this →
  4. 04

    Tilt after two losses

    Against 49% overall. Stop the session after two losses in a row.

    52%score after 2 straight losses
  5. 05

    Englund Gambit as white

    Your weakest common opening, against 49% overall.

    41%score over 93 games
A hand slamming a chess clockBlunders 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 1178 losses.

Lost on time in a playable position19%n=219
Missed a tactic / only move18%n=208
Hung a piece (left it undefended)17%n=200
Big positional error (no simple tactic)12%n=137
Walked into a fork8%n=90
Didn't see opponent's 2–3 move combination7%n=82
Lost material in a bad trade7%n=80
Allowed a mating attack6%n=75
Endgame technique error4%n=42
Outplayed gradually (no single big error)3%n=33
Walked into a pin1%n=12

Winning positions

Games where you were 85%+ to win at some point. Then something happened.

Final result from a winning position

Won59%n=1,054
Drew6%n=100
Lost36%n=643

424 of the games you didn't win ended on time.

Pieces lost to mistakes and blunders

Rooks284n=284
Knights230n=230
Bishops224n=224
Queens197n=197

Clock and phase

Blunders per 100 moves.

By time left on your clock

< 10s5.8n=10,565
10–30s5.0n=10,955
30–60s4.1n=9,032
1–2 min4.1n=17,092
2–5 min1.8n=41,219

By phase of the game

opening1.2n=29,017
middlegame5.0n=35,964
endgame3.5n=23,882

By thinking time (1 min+ on clock, after the opening)

< 2s2.2n=9,180
2–5s3.3n=8,080
5–15s4.6n=9,448
15–30s7.2n=2,288
30s +12.9n=309

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

After a win49%n=877
After a loss50%n=516
After 2 losses in a row52%n=183
After 3+ losses in a row36%n=122

By game number in a session

Game 150%n=659
Game 253%n=355
Game 345%n=251
Games 4–547%n=336
Games 6–1055%n=410
Game 11+44%n=434

By time of day

03–06h46%n=245
06–09h50%n=143
09–12h49%n=209
12–15h50%n=379
15–18h51%n=652
18–21h48%n=666
21–24h48%n=126

Openings

Openings with 15+ games. Win chance after move 12 shows whether you leave the opening better or worse.

OpeningAsGamesScoreWin chance, move 12Blunders / game
Queens Pawn Openingwhite54853%55%1.21
French Defenseblack29747%51%1.37
Scandinavian Defenseblack28945%50%1.27
Indian Gamewhite21051%55%1.10
Alekhines Defenseblack11849%50%1.33
Queens Pawn Openingblack11644%51%1.02
Englund Gambitwhite9341%58%1.53
London Systemwhite9066%50%1.01
Queens Gambitblack8246%47%1.32
Modern Defensewhite4645%59%1.24
London Systemblack3350%49%1.21
Pirc Defenseblack3055%44%1.07
Indian Gameblack2938%49%0.76
Old Benoni Defensewhite2974%53%0.86
English Defensewhite2857%52%1.25
English Openingblack2333%49%1.43
Colle Systemblack2264%46%0.91
Kings Fianchetto Openingblack2060%61%1.00
Dutch Defensewhite2075%51%0.75
Caro Kann Defensewhite2045%51%1.30
Van t Kruijs Openingblack1950%50%1.00
Pirc Defensewhite1850%55%1.11
English Openingwhite1634%53%1.19
Undefinedwhite1530%41%1.27
Reti Openingwhite1550%57%1.73

The evidence

Recent examples of each main loss cause. your move Stockfish's move

Missed a tactic / only move

1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Missed a tactic · 2:34 left
12… Nxf6? Best was gxf6.
Win chance 32% → 12% · clock 2:34
vs bondpojken (1557) · 17-09-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Missed a tactic · 0:04 left
31. Qh4? Best was Qxd2.
Win chance 94% → 33% · clock 0:04
vs NeverLuckyAtChess (1523) · 07-09-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Missed a tactic · 0:09 left
18. Be8+? Best was Qf7+.
Win chance 100% → 19% · clock 0:09
vs jacek12 (1533) · 27-08-26 →

Hung a piece (left it undefended)

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Hung a piece · 1:01 left
22. Qe2+? Best was Nhg5.
Win chance 51% → 9% · clock 1:01
vs dlvmurat (1550) · 20-09-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Hung a piece · 2:19 left
14. Bxe7? Best was Bxe4.
Win chance 68% → 20% · clock 2:19
vs kursatilci (1530) · 20-09-26 →
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Hung a piece · 2:15 left
17… Kc7? Best was Bxf3.
Win chance 91% → 8% · clock 2:15
vs katindigz (1527) · 03-09-26 →

Big positional error (no simple tactic)

1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Positional error · 1:43 left
11… f5? Best was Nb4.
Win chance 79% → 33% · clock 1:43
vs Aan_punk (1599) · 24-08-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Positional error · 1:01 left
20. Nh5? Best was Rf1.
Win chance 87% → 42% · clock 1:01
vs winsindo (1597) · 24-08-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Positional error · 1:36 left
19. Bb5? Best was Ne4.
Win chance 71% → 45% · clock 1:36
vs sontoloyo1922 (1542) · 24-08-26 →

Walked into a fork

1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Walked into a fork · 2:42 left
5… Qd4? Best was Nc6.
Win chance 69% → 12% · clock 2:42
vs gagsb (1531) · 25-08-26 →
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Walked into a fork · 2:56 left
4… Bb4? Best was exd5.
Win chance 50% → 8% · clock 2:56
vs darkodanicic (1545) · 25-08-26 →
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Walked into a fork · 1:06 left
32. Rge3? Best was Rxb2.
Win chance 47% → 11% · clock 1:06
vs hm420000 (1616) · 25-08-26 →