Scouting report: Ferdinand Hellers (GM, SWE)

939 over-the-board games in the Chess Stalker database (878 classical, 45 rapid, 16 blitz): 38% wins, 43% draws, 19% losses. FIDE rating 2581 standard, 2340 rapid, 2367 blitz. 118 games analyzed with Stockfish: 92% accuracy, 0.08 blunders per game.

  • Opening repertoire of Ferdinand Hellers as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Ferdinand Hellers's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1700022 — no account needed.

Chess Stalker

Ferdinand Hellers

GM

Swedenborn 1969FIDE ID 1700022

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2300
2400
2500
2600
2592 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2581
2367
2340
2605peak, Jan 2001
939games
354wins, 38%
402draws, 43%
183losses, 19%

Play style

before facing them
Elite accuracy: 91.9% average
Very consistent (88%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 as ♔ (65% in 438 games)
Vulnerable to 1.d4 ♔ (only 40%)

Play against Hellers's Twin

Their real openings, level & style

Based on 939 games

Openings

939 games

Weaknesses

where they slip as ♔ White
Caro-Kann: Classical1.e4 c6 2.d4 d5 3.♞c3 dxe4 4.♞xe4 ♝f5only 8 games, last played 3 years ago50.0%losses

Strengths

what holds up for them as ♔ White
Sicilian: Dragon1.e4 c5 2.♞f3 d6 3.d4 cxd4 4.♞xd4 ♞f6 5.♞c3 g612 games, last played 20 years ago58.3%wins

Deep analysis

Stockfish · Classical · 118 analyzed
Accuracy by phase
Opening
96.5%
Middlegame
92.6%
Endgame
94.1%
Clutch factor
+6%
Winning (+2)
94%
Equal
94%
Losing (−2)
88%
Problematic pieces
21%
27 err
19%
25 err
19%
25 err
18%
23 err
15%
19 err
8%
11 err
Critical moment
Move 26 avg
14%
1-15
14%
16-25
71%
26-35
0%
36-45
0%
46+
71% of blunders occur after move 26-35. Keep tension until then.
Error heatmap · Critical squares
8
7
Few
Many
f5
8
e4
7
f4
5
f6
5
c3
4
f5/e4 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors
#45
♛h6?? vs Smeets
Endgame · Rapid · 2025
#27
♚f1?? vs Giri
Middlegame · Rapid · 2025
#75
h4?? vs Soderstrom
Endgame · OTB · 2024
#41
♚f3?? vs Ernst
Endgame · OTB · 2024
#12
♞xf4?? vs Bengtsson
Opening · OTB · 2024
#27
♜c6?? vs Berggren
Endgame · OTB · 2024

Recent games

Kucuksari, Kaan(2441)

Swedish Team Championship Elitse... · 8 Mar 2026

1–0
Lobron, Eric(2546)

V GM Sveshnikov Evgeny rapid mem... · 22 Feb 2026

½–½
Miezis, Normunds(2356)

V GM Sveshnikov Evgeny rapid mem... · 22 Feb 2026

0–1
Mierins, Emils Janis(2223)

GM Sveshnikov Evgeny blitz memor... · 20 Feb 2026

½–½
Lobron, Eric(2546)

GM Sveshnikov Evgeny blitz memor... · 20 Feb 2026

0–1
Miezis, Normunds(2356)

GM Sveshnikov Evgeny blitz memor... · 20 Feb 2026

½–½

Endgame statistics

Repertoire

PRO
939 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
478 games43%W40%D17%L
Move
1. e4
4386m
45%40%15
65%
1. d4
207m
2040%40%
40%
1. ♞f3
183y
33%28%39%
47%
1. c4
2—
50%50%
75%

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