Grachev, Boris

RUS RUS·Born 1986·FIDE #4129199·3,091 Games

FIDE OTB · #4129199 · 3,091 Games

Classical25862,158 g Games

Rapid2592371 g Games

Blitz2485574 g Games

Play against Grachev's Twin

PRO

Uses their openings, level & style

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

Ready to play

3091 games analyzed

Statistics

Total

3091

Wins

1330

Draws

1298

Losses

463

43%42%15%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 95.0% average

Solid conversion: 82%

Very consistent (92%)

Very precise: only 0.0 blunders/game

Dominates 1.c4 ♔ (74% in 161 games)

Deep Analysis

Stockfish 18 · Classical games · 253 analyzed

Accuracy by phase

Opening

96.5%

Middlegame

94.1%

Endgame

95.3%

Clutch Factor

+6%

Winning (+2)Winning (+2)

95%109g

EqualEqual position

96%117g

Losing (−2)Losing (−2)

89%29g

Accuracy under pressure

Problematic Pieces — which cause most errors?

23%

31 err

22%

30 err

19%

26 err

13%

18 err

11%

15 err

11%

15 err

Critical Moment

Move 47 avg

1-15

29%

16-25

29%

26-35

14%

36-45

29%

46+

29% of blunders after move 16-25 — keep the tension until then.of blunders occur in moves 16-25. Keep the tension until that moment.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

e5 / d5

Critical squares

9 err

7 err

5 err

4 err

e5/d5 account for most of the errors. Force decisions in those zones.

Openings

3,091 GamesBased on 3,091 player games

Weaknesses

— exploit these— exploit these lines

aswhite50.0%Losses

Sicilian: Open — 1.e4 c5 2.Nf3 d6 3.d4

8 Games · Low sample · last played 4 years agoPlay this line

No significant weaknesses detected as black

Strengths

— avoid these— avoid these lines

aswhite63.6%Wins

English: Agincourt — 1.c4 Nf6 2.Nc3 e611 Games · last played 9 years ago

11 Games · last played 9 years ago

aswhite59.5%Wins

Queen's Gambit Declined — 1.d4 d5 2.c4 e642 Games · last played last year

42 Games · last played last year

asblack54.5%Wins

Ruy Lopez: Morphy — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a611 Games · last played 7 years ago

11 Games · last played 7 years ago

asblack45.0%Wins

Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d680 Games · last played 4 years ago

80 Games · last played 4 years ago

Critical Blunders

10 errors · Stockfish

#56Kb6??Endgamevs SindarovBlitz · 2024

#66Kxe5??Endgamevs MamedyarovBlitz · 2024

#59Nf5??Endgamevs BocharovOTB · 2023

#43Qxb6??Endgamevs ChumaevskiyOTB · 2023

#47Kb6??Endgamevs KhripachenkoBlitz · 2022

#47c4??Endgamevs AfanasievBlitz · 2022

#57Kf2??Endgamevs TsydypovOTB · 2022

#41Bxg2??Endgamevs ZakhartsovOTB · 2022

#47Nb6??Endgamevs NikolovRapid · 2022

#36Kd4??Tacticsvs BocharovRapid · 2022

Recent Games

3,091 Games

Win

Zarubitski, Viachaslau(2398)

TCh-RUS Premier 2025 · 5 May 2025

0-1

Draw

Zakharov, Alexey O.(2166)

TCh-RUS Premier 2025 · 4 May 2025

½-½

Draw

Kulaev, Maxim(2355)

TCh-RUS Premier 2025 · 2 May 2025

½-½

Win

Gilfanov, Marat I(2379)

TCh-RUS Premier 2025 · 30 Apr 2025

1-0

Win

Volkov, Maksim(2388)

TCh-RUS Premier 2025 · 29 Apr 2025

0-1

Draw

Ponkratov, Pavel(2547)

TCh-RUS Premier 2025 · 27 Apr 2025

½-½

Endgame Statistics

PRO358 endgames (59.1%)

Strongest

73%

Queen vs Fortress

Weakest

Opposite-Color Bishops

Reaches Endgame

59.1%

358 / 606

B vs N Pref

12.5% · 11.1%

8 / 9

PiecesTypeWin %Games

Rook + Minor

40.8%179

Rook vs Rook

34.3%105

Rook + Equal Minors

42.5%87

Rook+Bishop vs Rook+Knight

43.6%78

Queen vs Pieces

26.6%64

Rook vs Minor (Exchange)

32.5%40

Rook + Minor40.8%179

Rook vs Rook34.3%105

Rook + Equal Minors42.5%87

Rook+Bishop vs Rook+Knight43.6%78

Queen vs Pieces26.6%64

Rook vs Minor (Exchange)32.5%40

Weakest: Opposite-Color Bishops 9%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

1565 Games

47%41%12%

Move	Games	%
1.d4	1063	67%
1.Nf3Strong	252	70%
1.c4Strong	161	74%
1.e4	87	54%
1.g3Strong	1	100%
1.b3Weak	1	0%

MoveGamesPerformance%

1.d4

1063

67%

1.Nf3Strong

252

70%

1.c4Strong

161

74%

1.e4

54%

1.g3Strong

100%

1.b3Weak