Speelman, Jon S

ENG ENG·Born 1956·FIDE #400033·2,849 Games

FIDE OTB · #400033 · 2,849 Games

Classical24952,654 g Games

Rapid254078 g Games

Blitz2449117 g Games

Play against Speelman's Twin

PRO

Uses their openings, level & style

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

Ready to play

2849 games analyzed

Statistics

Total

2849

Wins

985

Draws

1451

Losses

413

35%51%14%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 93.8% average

Solid conversion: 89%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.d4 ♔ (66% in 503 games)

Vulnerable to 1.Nf3 ♚ (only 47%)

Deep Analysis

Stockfish 18 · Classical games · 219 analyzed

Accuracy by phase

Opening

96.0%

Middlegame

93.8%

Endgame

94.7%

Clutch Factor

+4%

Winning (+2)Winning (+2)

95%48g

EqualEqual position

95%109g

Losing (−2)Losing (−2)

91%62g

Accuracy under pressure

Problematic Pieces — which cause most errors?

22%

51 err

22%

52 err

19%

45 err

19%

44 err

22 err

20 err

Critical Moment

Move 39 avg

1-15

18%

16-25

18%

26-35

36%

36-45

27%

46+

36% of blunders after move 36-45 — keep the tension until then.of blunders occur in moves 36-45. Keep the tension until that moment.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

c6 / e5

Critical squares

10 err

9 err

8 err

c6/e5 account for most of the errors. Force decisions in those zones.

Openings

2,849 GamesBased on 2,849 player games

Weaknesses

— exploit these— exploit these lines

No significant weaknesses detected as white

No significant weaknesses detected as black

Strengths

— avoid these— avoid these lines

No consistent strengths detected as white

asblack60.0%Wins

Sicilian: Rossolimo — 1.e4 c5 2.Nf3 Nc6 3.Bb510 Games · last played 9 years ago

10 Games · last played 9 years ago

Critical Blunders

10 errors · Stockfish

#31Rge5??Tacticsvs BatesOTB · 2025

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#51Rb7+??Endgamevs TurnerBlitz · 2025

#33d7??Tacticsvs BijeljicBlitz · 2025

#57Nxc4??Endgamevs DamodaranBlitz · 2025

#40Kh2??Tacticsvs PeinBlitz · 2025

#54Kxf7??Endgamevs ShawBlitz · 2025

#70Ke5??Endgamevs RoyalOTB · 2025

#31Rb2??Tacticsvs KozusekBlitz · 2023

#23h6??Tacticsvs GasanovBlitz · 2023

Recent Games

2,849 Games

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1-0

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0-1

Win

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0-1

Loss

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Win

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Endgame Statistics

PRO134 endgames (47.3%)

Strongest

67%

Bishop vs Knight

Weakest

Minor Piece Pairs

Reaches Endgame

47.3%

134 / 283

B vs N Pref

60% · 75%

5 / 4

PiecesTypeWin %Games

Rook + Minor

30.6%72

Rook+Bishop vs Rook+Knight

31.1%45

Rook vs Rook

18.8%32

Rook + Equal Minors

26.9%26

Queen vs Pieces

31.8%22

Rook vs Minor (Exchange)

47.6%21

Rook + Minor30.6%72

Rook+Bishop vs Rook+Knight31.1%45

Rook vs Rook18.8%32

Rook + Equal Minors26.9%26

Queen vs Pieces31.8%22

Rook vs Minor (Exchange)47.6%21

Weakest: Minor Piece Pairs 0%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

1384 Games

40%49%11%

Move	Games	%
1.Nf3	548	65%
1.d4	503	66%
1.e4	187	65%
1.c4	136	61%
1.g3	8	38%
1.b3Strong	2	100%

MoveGamesPerformance%

1.Nf3

548

65%

1.d4

503

66%

1.e4

187

65%

1.c4

136

61%

1.g3

38%

1.b3Strong

100%