Duda, Jan-Krzysztof

POL POL·Born 1998·FIDE #1170546·4,600 Games

Classical27393,762 Games

Rapid2685456 Games

Blitz2721542 Games

Statistics

4600

Total

2623

Wins

1098

Draws

879

Losses

57%24%19%

Play Style

What you need to know before facing them

Elite accuracy: 95.5% average

High resilience (59%): Dangerous even when losing

Solid conversion: 88%

Very consistent (94%)

Very precise: only 0.0 blunders/game

Dominates 1.f4 ♔ (95% in 10 games)

Deep Analysis

Stockfish 18 · Classical games · 77 analyzed

Accuracy by phase

Opening96.9%

Middlegame94.1%

Endgame95.8%

Clutch Factor

Performance under pressure

+1%

Winning (+2 or more)95%

18 Games

Equal position96%

46 Games

Losing (-2 or more)94%

13 Games

Problematic Pieces

Which pieces cause most errors?

♙

25%

8 errors

♖

25%

8 errors

♞

16%

5 errors

♗

12%

4 errors

♕

12%

4 errors

♔

3 errors

Critical Moment

When does the first serious error occur?

Move 38average

1-15

16-25

26-35

36-45

46+

100% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

abcdefgh

Many

Few

Critical squares

f33 err

c52 err

g22 err

g32 err

h22 err

f3/c5 concentrate most errors. Force decisions in those zones.

Recent Games

Kantans, Toms2560

German Team Cup 2026 · 31 May 2026

0-1

Schmidek, Emil2453

German Team Cup 2026 · 30 May 2026

0-1

Bluebaum, Matthias2694

2nd 3-0 Thu 28th May 2026 · 28 May 2026

1-0

Yoo, Christopher Woojin2607

2nd 3-0 Thu 28th May 2026 · 28 May 2026

1-0

Martinez Alcantara, Jose Eduardo2650

1st 3-0 Thu 28th May 2026 · 28 May 2026

0-1

Kravtsiv, Martyn2598

1st 3-0 Thu 28th May 2026 · 28 May 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

Sicilian: Alapin

63.6%

11 Games·Loses

1.e4 c5 2.c3 Nf6

Strengths

AVOID

White

Reti: Double Fianchetto

86.7%

15 Games·Wins

1.Nf3 Nf6 2.g3 g6

1.b3 e5 2.Bb2 Nc6

82.4%

17 Games·Wins

1.b3 e5 2.Bb2 Nc6

Black

Caro-Kann: Exchange

100.0%

16 Games·Wins

1.e4 c6 2.d4 d5 3.exd5

French: Exchange

80.0%

15 Games·Wins

1.e4 e6 2.d4 d5 3.exd5

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors

▶

#37cxd2??

Tactics

vs Lobanov

Blitz·2025

▶

#31Qe2??

Tactics

vs Gukesh D

Blitz·2025

▶

#27Bc3??

Tactics

vs Aditya Mittal

Blitz·2025

▶

#43Be4??

Endgame

vs Sanal

Blitz·2025

▶

#57Re8??

Endgame

vs Shimanov

Blitz·2025

▶

#27bxa6??

Tactics

vs Gukesh D

OTB·2025

▶

#91Kd1??

Endgame

vs Firouzja

OTB·2025

▶

#38Qc2??

Endgame

vs Carlsen

OTB·2025

▶

#27Nf5??

Tactics

vs Carlsen

OTB·2025

▶

#30Ba6??

Tactics

vs Aronian

Blitz·2025

Endgame Statistics

21 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

2026

2025

2024

2023

2022

2021

PRO

Starting Position

2340 Games

62%21%17%

Move	Games	%
1.e4 Strong	1084	72%
1.d4	731	70%
1.Nf3 Strong	204	73%
1.c4 Strong	148	75%
1.b3 Strong	64	83%
1.b4 Strong	38	86%
1.g3 Strong	18	83%
1.c3 Strong	13	85%
1.Nc3 Strong	10	90%
1.f4 Strong	10	95%
1.g4 Strong	6	75%
1.a3 Strong	4	100%
1.d3	2	50%
1.Na3 Strong	2	100%
1.h3	2	50%
1.h4	2	50%
1.Nh3 Weak	1	0%
1.e3 Strong	1	100%

1.e4

72%

1084

1.d4

70%

731

1.Nf3

73%

204

1.c4

75%

148

1.b3

83%

1.b4

86%

1.g3

83%

1.c3

85%

1.Nc3

90%

1.f4

95%

1.g4

75%

1.a3

100%

1.d3

50%

1.Na3

100%

1.h3

50%

1.h4

50%

1.Nh3

1.e3

100%

Duda, Jan-Krzysztof

Play against Duda, Jan-Krzysztof's Twin

Statistics

Play Style

Deep Analysis

Clutch Factor

Problematic Pieces

Critical Moment

Error Heatmap

Recent Games

Openings

Weaknesses

Sicilian: Alapin

Strengths

Reti: Double Fianchetto

1.b3 e5 2.Bb2 Nc6

Caro-Kann: Exchange

French: Exchange

Critical Blunders