GM

Hellers, Ferdinand

SWE SWE·Born 1969·FIDE #1700022·961 Games

Classical2581897 Games
Rapid233248 Games
Blitz236416 Games

Statistics

961

Total

364

Wins

408

Draws

189

Losses

38%42%20%

Play Style

What you need to know before facing them

Elite accuracy: 92.0% average
Very consistent (88%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 ♔ (65% in 447 games)
Vulnerable to 1.d4 ♔ (only 39%)

Deep Analysis

Stockfish 18 · Classical games · 119 analyzed

Accuracy by phase
Opening96.5%
Middlegame92.6%
Endgame94.2%

Clutch Factor

Performance under pressure

+6%
Winning (+2 or more)94%
39 Games
Equal position94%
41 Games
Losing (-2 or more)88%
39 Games

Problematic Pieces

Which pieces cause most errors?

♖
21%
27 errors
♙
19%
25 errors
♕
19%
25 errors
♞
18%
23 errors
♗
15%
19 errors
♔
8%
11 errors

Critical Moment

When does the first serious error occur?

Move 26average
1-15
16-25
26-35
36-45
46+
71% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

5
4
8
4
7
5
4
4
4
4
abcdefgh
Many
Few
Critical squares
f58 err
e47 err
f45 err
f65 err
c34 err
f5/e4 concentrate most errors. Force decisions in those zones.

Recent Games

W
Kucuksari, Kaan2452

Rond 9: Hellers, Ferdinan... · 8 Mar 2026

1-0
W
Kucuksari, Kaan2441

TCh-SWE Elitserien · 8 Mar 2026

1-0
L
Miezis, Normunds2356

V GM Sveshnikov Evgeny ra... · 22 Feb 2026

1-0
D
Lobron, Eric2546

V GM Sveshnikov Evgeny ra... · 22 Feb 2026

½-½
W
Lanka, Zigurds2286

GM Sveshnikov Evgeny blit... · 20 Feb 2026

1-0
L
Lobron, Eric2546

GM Sveshnikov Evgeny blit... · 20 Feb 2026

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!
White
Caro-Kann: Classical
50.0%
8 GamesLow sample·Loses

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5

Black

No significant weaknesses detected as Black

Strengths

AVOID
White
Sicilian: Dragon
58.3%
12 Games·Wins

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

Black
Sicilian: Najdorf
47.6%
42 Games·Wins

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6

Nimzo-Indian
50.0%
10 Games·Wins

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors
▶
#45Qh6??
Endgame
vs Smeets
Rapid·2025
▶
#27Kf1??
Tactics
vs Giri
Rapid·2025
▶
#75h4??
Endgame
vs Soderstrom
OTB·2024
▶
#41Kf3??
Endgame
vs Ernst
OTB·2024
▶
#18Ng4??
Tactics
vs Seo
OTB·2024
▶
#12Nxf4??
Tactics
vs Bengtsson
OTB·2024
▶
#27Rc6??
Tactics
vs Berggren
OTB·2024
▶
#29Rc1??
Tactics
vs Adler
OTB·2024
▶
#40Ke2??
Tactics
vs Fridman
OTB·2024
▶
#59Rd8??
Endgame
vs Pechac
Rapid·2024
Endgame Statistics

22 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
492 Games
44%39%17%
1.e4
65%
447
1.d4
39%
22
1.Nf3
48%
21
1.c4
75%
2
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