Kaczmarczyk, Dennis

GER GER·Born 1991·FIDE #24608297·397 Games

FIDE OTB · #24608297 · 397 Games

Classical2450397 g Games

Rapid—0 g Games

Blitz—0 g Games

Play against Kaczmarczyk's Twin

PRO

Uses their openings, level & style

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

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397 games analyzed

Statistics

Total

397

Wins

177

Draws

122

Losses

45%31%25%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 95.0% average

Solid conversion: 100%

Very consistent (91%)

Very precise: only 0.0 blunders/game

Dominates 1.c4 ♚ (68% in 11 games)

Vulnerable to 1.Nf3 ♔ (only 41%)

Deep Analysis

Stockfish 18 · Classical games · 37 analyzed

Accuracy by phase

Opening

96.0%

Middlegame

94.9%

Endgame

96.7%

Clutch Factor

+7%

Winning (+2)Winning (+2)

96%17g

EqualEqual position

96%14g

Losing (−2)Losing (−2)

89%6g

Accuracy under pressure

Problematic Pieces — which cause most errors?

47%

7 err

20%

3 err

13%

2 err

13%

2 err

1 err

0 err

Critical Moment

Move 46 avg

1-15

16-25

26-35

36-45

100%

46+

100% of blunders after move 46 — keep the tension until then.of blunders occur in moves 46+. Keep the tension until that moment.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

b3 / d5

Critical squares

2 err

1 err

b3/d5 account for most of the errors. Force decisions in those zones.

Openings

397 GamesBased on 397 player games

Weaknesses

— exploit these— exploit these lines

No significant weaknesses detected as white

asblack55.6%Losses

King's Indian — 1.d4 Nf6 2.c4 g6

9 Games · Low sample · last played 7 years agoPlay this line

Strengths

— avoid these— avoid these lines

aswhite75.0%Wins

Queen's Gambit Declined — 1.d4 d5 2.c4 e616 Games · last played 2 years ago

16 Games · last played 2 years ago

aswhite61.5%Wins

King's Indian — 1.d4 Nf6 2.c4 g613 Games · last played 7 years ago

13 Games · last played 7 years ago

asblack50.0%Wins

French: Winawer — 1.e4 e6 2.d4 d5 3.Nc3 Bb412 Games · last played 10 months ago

12 Games · last played 10 months ago

asblack45.5%Wins

Queen's Gambit Declined — 1.d4 d5 2.c4 e611 Games · last played 2 years ago

11 Games · last played 2 years ago

Critical Blunders

1 errors · Stockfish

#46Rh5??Endgamevs BognerOTB · 2026

Recent Games

397 Games

Win

Valles, Manuel(2308)

TCh-SUI 2026 · 21 Jun 2026

1-0

Loss

Bogner, Sebastian(2552)

TCh-SUI 2026 · 20 Jun 2026

0-1

Draw

Kurmann, Oliver(2382)

TCh-SUI 2026 · 31 May 2026

½-½

Draw

Knoedler, Dieter, Dr.(2264)

TCh-SUI 2026 · 19 Apr 2026

½-½

Win

Asllani, Dorian(2257)

Swiss National League A 2... · 17 Mar 2026

0-1

Win

Asllani, Dorian(2230)

TCh-SUI 2026 · 15 Mar 2026

0-1

Endgame Statistics

PRO21 endgames (58.3%)

Strongest

62%

Rook + Minor

Weakest

40%

Rook+Bishop vs Rook+Knight

Reaches Endgame

58.3%

21 / 36

B vs N Pref

50% · 0%

2 / 0

PiecesTypeWin %Games

Rook + Minor

62.5%8

Rook+Bishop vs Rook+Knight

40%5

Queen vs Pieces

60%5

Rook vs Minor (Exchange)

60%5

Rook + Equal Minors

25%4

Rook + Bishop Pair

66.7%3

Rook + Minor62.5%8

Rook+Bishop vs Rook+Knight40%5

Queen vs Pieces60%5

Rook vs Minor (Exchange)60%5

Rook + Equal Minors25%4

Rook + Bishop Pair66.7%3

Weakest: Rook+Bishop vs Rook+Knight 40%Show all 18 types

Unlock Endgame Statistics

18 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

213 Games

46%30%24%

Move	Games	%
1.d4	143	65%
1.e4	29	53%
1.c4	29	57%
1.Nf3	11	41%
1.b3	1	50%

MoveGamesPerformance%

1.d4

143

65%

1.e4

53%

1.c4

57%

1.Nf3

41%

1.b3

50%