Peyrer, Konstantin

AUT AUT·Born 2003·FIDE #1640879·1,236 Games

FIDE OTB · #1640879 · 1,236 Games

Classical2492947 g Games

Rapid2488155 g Games

Blitz2487202 g Games

Play against Peyrer's Twin

PRO

Uses their openings, level & style

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

Ready to play

1236 games analyzed

Statistics

Total

1236

Wins

551

Draws

353

Losses

328

45%29%27%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 93.1% average

Solid conversion: 81%

Very consistent (91%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 ♔ (66% in 151 games)

Vulnerable to 1.c4 ♚ (only 39%)

Deep Analysis

Stockfish 18 · Classical games · 418 analyzed

Accuracy by phase

Opening

96.1%

Middlegame

92.8%

Endgame

94.7%

Clutch Factor

+5%

Winning (+2)Winning (+2)

94%162g

EqualEqual position

94%171g

Losing (−2)Losing (−2)

89%85g

Accuracy under pressure

Problematic Pieces — which cause most errors?

26%

90 err

20%

69 err

15%

52 err

14%

51 err

14%

51 err

11%

39 err

Critical Moment

Move 41 avg

1-15

21%

16-25

21%

26-35

26%

36-45

32%

46+

32% 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

110

Hotspot zone

f5 / g5

Critical squares

14 err

13 err

11 err

f5/g5 account for most of the errors. Force decisions in those zones.

Openings

1,236 GamesBased on 1,236 player games

Weaknesses

— exploit these— exploit these lines

aswhite44.4%Losses

Nimzo-Indian: Rubinstein — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3

27 Games · last played 3 months agoPlay this line

asblack52.6%Losses

Italian: Two Knights — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6

19 Games · last played 8 months agoPlay this line

Strengths

— avoid these— avoid these lines

aswhite60.0%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e620 Games · last played 3 years ago

20 Games · last played 3 years ago

aswhite60.0%Wins

Reti: Double Fianchetto — 1.Nf3 Nf6 2.g3 d510 Games · last played 8 months ago

10 Games · last played 8 months ago

asblack52.7%Wins

Ruy Lopez: Morphy — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a655 Games · last played 2 weeks ago

55 Games · last played 2 weeks ago

asblack55.6%Wins

Reti vs King's Indian — 1.Nf3 Nf6 2.c4 g618 Games · last played 4 months ago

18 Games · last played 4 months ago

Critical Blunders

10 errors · Stockfish

#39Nc6??Tacticsvs Harshavardhan G BBlitz · 2025

#56Rxf7??Endgamevs GaehwilerBlitz · 2025

#41Nf6+??Endgamevs GrebnevBlitz · 2025

#22Qf4??Tacticsvs Galaviz MedinaBlitz · 2025

#20Bf4??Tacticsvs SindarovBlitz · 2025

#17Rf7??Tacticsvs YuBlitz · 2025

#47Re4??Endgamevs AhmadBlitz · 2025

#32Nd2??Tacticsvs KozakRapid · 2025

#39Rc1??Endgamevs GiriBlitz · 2025

#23Bb2??Tacticsvs MusovicBlitz · 2025

Recent Games

1,236 Games

Draw

Baselmans, Luuk(2377)

Dutch Open 2026 · 26 Jul 2026

½-½

Loss

De Winter, Arthur(2446)

Dutch Open 2026 · 25 Jul 2026

1-0

Win

Dordevic, Tom(2319)

Dutch Open 2026 · 24 Jul 2026

1-0

Draw

De Boer,Eelke(2406)

Dutch Open 2026 · 23 Jul 2026

½-½

Win

Han, Qixiang(2311)

Dutch Open 2026 · 22 Jul 2026

1-0

Win

Den Hartog, Marijn(2209)

Dutch Open 2026 · 21 Jul 2026

0-1

Endgame Statistics

PRO366 endgames (55.1%)

Strongest

83%

Bishop Pair Advantage

Weakest

10%

Double Rook

Reaches Endgame

55.1%

366 / 664

B vs N Pref

57.1% · 50%

21 / 6

PiecesTypeWin %Games

Rook + Minor

38.1%189

Rook + Equal Minors

23.4%94

Rook+Bishop vs Rook+Knight

47.3%91

Rook vs Rook

28.4%74

Rook + Bishop Pair

56.7%67

Rook vs Minor (Exchange)

37.7%61

Rook + Minor38.1%189

Rook + Equal Minors23.4%94

Rook+Bishop vs Rook+Knight47.3%91

Rook vs Rook28.4%74

Rook + Bishop Pair56.7%67

Rook vs Minor (Exchange)37.7%61

Weakest: Double Rook 10%Show all 23 types

Unlock Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

603 Games

48%30%22%

Move	Games	%
1.d4	211	62%
1.e4	154	65%
1.Nf3	151	66%
1.c4	69	58%
1.g3	7	43%
1.e3	5	40%
1.a3Strong	2	100%
1.f4	2	50%
1.b3	2	50%

MoveGamesPerformance%

1.d4

211

62%

1.e4

154

65%

1.Nf3

151

66%

1.c4

58%

1.g3

43%

1.e3

40%

1.a3Strong

100%

1.f4

50%

1.b3

50%