GM

Efimenko, Zahar

UKR UKR·Born 1985·FIDE #14107201·2,268 Games

Classical25482,123 Games
Rapid260776 Games
Blitz254669 Games

Statistics

2268

Total

870

Wins

1051

Draws

347

Losses

38%46%15%

Play Style

What you need to know before facing them

Elite accuracy: 94.0% average
Very consistent (90%)
Very precise: only 0.1 blunders/game
Dominates 1.d4 ♔ (73% in 46 games)

Deep Analysis

Stockfish 18 · Classical games · 242 analyzed

Accuracy by phase
Opening96.1%
Middlegame93.8%
Endgame95.8%

Clutch Factor

Performance under pressure

+6%
Winning (+2 or more)95%
56 Games
Equal position96%
136 Games
Losing (-2 or more)89%
50 Games

Problematic Pieces

Which pieces cause most errors?

♙
22%
37 errors
♕
19%
31 errors
♗
17%
28 errors
♖
17%
29 errors
♞
16%
26 errors
♔
10%
16 errors

Critical Moment

When does the first serious error occur?

Move 39average
1-15
16-25
26-35
36-45
46+
60% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

4
11
8
4
5
4
5
5
4
5
abcdefgh
Many
Few
Critical squares
e511 err
f58 err
b45 err
c15 err
e45 err
e5/f5 concentrate most errors. Force decisions in those zones.

Recent Games

L
Baum, Jonasz2446

Bundesliga 2025-26 · 26 Apr 2026

1-0
D
Druska, Juraj2457

Bundesliga 2025-26 · 25 Apr 2026

½-½
D
Predojevic, Borki2565

Bundesliga 2025-26 · 24 Apr 2026

½-½
D
Janik, Igor2517

German Bundesliga 2025-26 · 22 Mar 2026

½-½
D
Lampert, Jonas2536

1. BL Pauli · 21 Mar 2026

½-½
D
Kryvoruchko, Yuriy2616

1. BL Bremen · 1 Mar 2026

½-½

Openings

Based on player games

Weaknesses

EXPLOIT!
White

No significant weaknesses detected as White

Black

No significant weaknesses detected as Black

Strengths

AVOID
White
Sicilian: Dragon
65.2%
23 Games·Wins

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6

French: Classical
57.9%
19 Games·Wins

1.e4 e6 2.d4 d5 3.Nc3 Nf6

Black
Sicilian: e6 Systems
62.5%
16 Games·Wins

1.e4 c5 2.Nf3 e6

King's Indian: Main Line
53.3%
15 Games·Wins

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors
▶
#60Kg3??
Endgame
vs Maghsoodloo
OTB·2024
▶
#27Nxe4+??
Tactics
vs Schneider
OTB·2024
▶
#64Nd8??
Endgame
vs Samunenkov
Blitz·2021
▶
#54Kf6??
Endgame
vs Klekowski
Blitz·2021
▶
#34Qc7??
Tactics
vs Kosakowski
Blitz·2021
▶
#34Kh1??
Tactics
vs Gukesh D
Blitz·2021
▶
#59Rc5??
Endgame
vs Gumularz
Blitz·2021
▶
#30Qh3??
Tactics
vs Dubov
Rapid·2021
▶
#24gxf5??
Tactics
vs Bogner
OTB·2021
▶
#67Kc6??
Endgame
vs Bluebaum
OTB·2020
Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO
·
2026
2025
2024
2023
2022
2021
PRO
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Starting Position
1156 Games
43%45%12%
1.e4
66%
852
1.Nf3
63%
249
1.d4
73%
46
1.c4
67%
9
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