Scouting report: Marius Deuer (GM, GER)

918 over-the-board games in the Chess Stalker database (557 classical, 17 rapid, 344 blitz): 36% wins, 26% draws, 37% losses. FIDE rating 2494 standard, 2436 rapid, 2516 blitz. 454 games analyzed with Stockfish: 93% accuracy, 0.07 blunders per game.

  • Opening repertoire of Marius Deuer 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 Marius Deuer's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/16236432 — no account needed.

Marius Deuer

TitleGrandmasterFederationGermanyBorn2008FIDE ID16236432

Classical2494▲ 13
Rapid2436
Blitz2516
Games918
W · D · L36 / 26 / 37
Peak2507

Rating history

2200
2300
2400
2500
Peak2507
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Oct 2023Nov 2026
Classical2494Rapid2436Blitz2516no games played
Accuracy by phase
96.8%Opening93.4%Middlegame94.9%Endgame
Clutch factor
Insufficient data

Play style

Elite accuracy: 92.9% average
Very consistent (88%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 as ♔ (57% in 60 games)
Vulnerable to 1.Nf3 ♚ (only 37%)

Recent games

Bosiocic, Marin(2560)

2nd Bundesliga Sud 26-27 · 11 Oct 2026

½–½
Nothnagel, Marian Can(2444)

2nd Bundesliga Sud 26-27 · 10 Oct 2026

1–0
Kuandykuly, Danis(2394)

24th Spilimbergo Open · 15 Aug 2026

½–½
Nguyen, Piotr(2374)

24th Spilimbergo Open · 14 Aug 2026

0–1
Nemitz, Alfred(2371)

24th Spilimbergo Open · 11 Aug 2026

0–1

Play against Deuer's Twin

Their real openings, level & style

Based on 918 games

Openings

454 games as White · scores 53.6%

Weaknesses

where they slip as ♔ White
Benko Gambit1.d4 ♞f6 2.c4 c5 3.d5 b5only 9 games, last played 11 months ago66.7%losses
Nimzowitsch-Larsen1.b3 e5 2.♝b2 ♞c611 games, last played 4 years ago63.6%losses

Strengths

what holds up for them as ♔ White
Nimzo-Indian: Capablanca1.d4 ♞f6 2.c4 e6 3.♞c3 ♝b4 4.e3 O-O 5.♝d321 games, last played 3 months ago57.1%wins

By family

open a family to see its lines
PRO
918 games in scope
LineGamesScorevs 53.6%
7853.2%—
7653.9%—
6659.1%+5.5 pts
4565.6%+11.9 pts
2746.3%−7.3 pts
2252.3%—
2247.7%−5.9 pts
2152.4%—

Mistakes

Problematic pieces
Insufficient data
Critical moment
Insufficient data
Error heatmap · Critical squares
Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

Couldn't load this.

Endgame statistics

Repertoire

PRO
918 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
454 games41%W25%D34%L
Move
1. d4
2942w
37%33%30%
54%
1. e4
621y
52%38%
55%
1. b3
391y
51%46%
53%
1. ♞f3
2810m
46%25%29%
59%
1. c4
221y
43%1443%
48%
1. g3
53y
40%60%
40%
1. b4
15y
100%
0%
1. d3
14y
100%
100%
1. ♞c3
14y
100%
0%
1. f4
15y
100%
100%

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