Kolev, Atanas

BUL BUL·Born 1967·FIDE #2900130·759 Games

FIDE OTB · #2900130 · 759 Games

Classical2529759 g Games

Rapid—0 g Games

Blitz—0 g Games

Play against Kolev's Twin

PRO

Uses their openings, level & style

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

Ready to play

759 games analyzed

Statistics

Total

759

Wins

337

Draws

298

Losses

125

44%39%16%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 91.9% average

Plays 5.3% better with black

Very consistent (88%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 ♔ (72% in 142 games)

Vulnerable to 1.c4 ♚ (only 45%)

Deep Analysis

Stockfish 18 · Classical games · 8 analyzed

Accuracy by phase

Opening

97.0%

Middlegame

92.0%

Endgame

95.4%

Clutch Factor

-4%

Winning (+2)Winning (+2)

85%0g

EqualEqual position

95%3g

Losing (−2)Losing (−2)

89%5g

Accuracy under pressure

Problematic Pieces — which cause most errors?

31%

4 err

23%

3 err

15%

2 err

15%

2 err

1 err

Critical Moment

Move 30 avg

1-15

16-25

26-35

36-45

46+

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

f3 / a1

Critical squares

2 err

1 err

f3/a1 account for most of the errors. Force decisions in those zones.

Openings

759 GamesBased on 759 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

aswhite65.0%Wins

French: Tarrasch — 1.e4 e6 2.d4 d5 3.Nd220 Games · last played 18 years ago

20 Games · last played 18 years ago

aswhite61.5%Wins

Reti vs King's Indian — 1.Nf3 Nf6 2.c4 g613 Games · last played 23 years ago

13 Games · last played 23 years ago

asblack55.6%Wins

Nimzo-Indian: Rubinstein — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e318 Games · last played 14 years ago

18 Games · last played 14 years ago

asblack50.8%Wins

Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d665 Games · last played 16 years ago

65 Games · last played 16 years ago

Critical Blunders

2 errors · Stockfish

#51Ra6??Endgamevs KramnikOTB · 1998

#23Ncxe4??Tacticsvs PolgarOTB

Recent Games

759 Games

Win

Zhang, Xiaopeng(2265)

27th North American Open · 28 Dec 2017

1-0

Draw

Aldama Degurnay, Dionisio(2403)

27th North American Open · 27 Dec 2017

½-½

Draw

Li,Zhaozhi(2412)

27th North American Open · 27 Dec 2017

½-½

Loss

Gorovets, Andrey(2524)

National Open 2017 · 18 Jun 2017

0-1

Draw

Raptis, Nick(2296)

National Open 2017 · 17 Jun 2017

½-½

Win

Feng, Maggie(2298)

National Open 2017 · 17 Jun 2017

1-0

Endgame Statistics

PRO4 endgames (50%)

Strongest

Weakest

Reaches Endgame

50%

4 / 8

B vs N Pref

0% · 0%

0 / 0

PiecesTypeWin %Games

Rook + Minor

0%4

Rook vs Rook

0%3

Opposite Bishops + Major Pieces

0%1

Rook vs Minor (Exchange)

0%1

Other Endgame

0%1

Queen vs Pieces

0%1

Rook + Minor0%4

Rook vs Rook0%3

Opposite Bishops + Major Pieces0%1

Rook vs Minor (Exchange)0%1

Other Endgame0%1

Queen vs Pieces0%1

Weakest: 0%Show all 8 types

Unlock Endgame Statistics

8 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

365 Games

48%40%12%

Move	Games	%
1.d4	145	65%
1.e4Strong	142	72%
1.Nf3	71	67%
1.c4	7	50%

MoveGamesPerformance%

1.d4

145

65%

1.e4Strong

142

72%

1.Nf3

67%

1.c4

50%