Carlstedt, Jonathan

GER GER·Born 1990·FIDE #24614386·1,541 Games

Classical24361,415 Games

Rapid235832 Games

Blitz235794 Games

Play against Carlstedt, Jonathan's Twin

PRO

Uses their openings, level & style

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

Ready to play

1541 games analyzed

Statistics

Total

1541

Wins

712

Draws

413

Losses

415

46%27%27%

Play Style

What you need to know before facing them

Elite accuracy: 92.5% average

High resilience (59%): Dangerous even when losing

Solid conversion: 85%

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.Nf3 ♔ (68% in 30 games)

Deep Analysis

Stockfish 18 · Classical games · 209 analyzed

Accuracy by phase

Opening

95.5%

Middlegame

93.0%

Endgame

94.6%

Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?

+6%

Winning (+2 or more)

94%119g

Equal position

93%51g

Losing (-2 or more)

88%39g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

23%

45 errors

21%

42 errors

16%

32 errors

15%

29 errors

13%

25 errors

13%

26 errors

Critical Moment — When does the first serious error occur?

Move 40 average

25%

33%

25%

1-15

16-25

26-35

36-45

46+

33% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

d2 / g5

Critical squares

9 err

8 err

7 err

6 err

d2/g5 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

White54.5%Loses

London System — 1.d4 d5 2.Bf4 Nf6

11 GamesPlay this line

No significant weaknesses detected as Black

Strengths

— avoid these lines

White66.7%Wins

Slav Defense — 1.d4 d5 2.c4 c612 Games

Black68.8%Wins

Italian: Two Knights — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf616 Games

Black49.3%Wins

Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d669 Games

Critical Blunders

10 errors · Stockfish

#94Kg6??Endgamevs LickOTB · 2025

#23Rxf8+??Tacticsvs RichterOTB · 2025

#16gxf5??Tacticsvs SchoenOTB · 2024

#43Qa4??Endgamevs HelmsOTB · 2024

#32Qf5??Tacticsvs FabigOTB · 2024

#37Qd3??Tacticsvs GschnitzerOTB · 2024

#57Qxa4??Endgamevs ZengOTB · 2024

#29h5??Tacticsvs HoellmanOTB · 2024

#45Nd7??Endgamevs BronsteinRapid · 2023

#52Rb6??Endgamevs DordevicRapid · 2023