Gustafsson, Jan

GER GER·Born 1979·FIDE #4625498

2580Classical

2641Rapid

2519Blitz

Statistics

Total2,429

Wins1,108

Draws885

Losses436

46%36%18%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 93.2% average

Very consistent (87%)

Very precise: only 0.2 blunders/game

Play against Gustafsson's Twin

Uses their openings, level & style

Practice against a bot that uses their real openings and playing style

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2,429 games analyzed

Deep Analysis

Stockfish 18 · Classical · 209 analyzedStockfish 18 · Classical games · 209 analyzed

Accuracy by phase

Opening

96.7%

Middlegame

93.1%

Endgame

94.5%

Clutch Factor

+4%

Winning (+2)Winning (+2)

94%85g

EqualEqual position

95%62g

Losing (−2)Losing (−2)

90%62g

Accuracy under pressure

Problematic Pieces — which cause most errors?

27%

68 err

20%

52 err

16%

40 err

14%

36 err

12%

30 err

11%

28 err

Critical Moment

Move 39 avg

1-15

22%

16-25

22%

26-35

25%

36-45

28%

46+

28% of blunders occur after move 46 — keep tension until then.of blunders occur after move 46 — keep tension until then.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

e4 / e2

Critical squares

10 err

9 err

8 err

e4/e2 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Analyzing opening repertoire...

Critical Blunders

10 errors · Stockfish

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#44Kc1??Endgamevs BokhodirovOTB · 2026

#75Ra8??Endgamevs MahdaviOTB · 2026

#46Rxg5??Endgamevs LarchikovOTB · 2026

#21Bg5??Tacticsvs KapechunOTB · 2026

#22Be4??Tacticsvs BegunovOTB · 2026

#15f3??Tacticsvs AnandhOTB · 2026

#34cxd5??Tacticsvs GalchenkoOTB · 2026

#56Ke5??Endgamevs WenOTB · 2026