IM
Feuerstack, Aljoscha
GER·Born 1988·FIDE #4681932·1,279 Games
GER Classical24601,234 Games
Rapid242721 Games
Blitz246124 Games
Statistics
1279
Total
584
Wins
346
Draws
348
Losses
46%27%27%
Play Style
What you need to know before facing them
Elite accuracy: 92.8% average
Solid conversion: 82%
Very consistent (86%)
Very precise: only 0.1 blunders/game
Dominates 1.d4 ♔ (67% in 43 games)
Deep Analysis
Stockfish 18 · Classical games · 206 analyzed
Accuracy by phase
Opening96.7%
Middlegame93.3%
Endgame94.9%
Clutch Factor
Performance under pressure
Winning (+2 or more)94%
89 Games
Equal position95%
71 Games
Losing (-2 or more)89%
46 Games
Problematic Pieces
Which pieces cause most errors?
♖
23%
45 errors
♞
18%
36 errors
♕
18%
36 errors
♗
17%
34 errors
♙
14%
27 errors
♔
10%
19 errors
Critical Moment
When does the first serious error occur?
Move 30average
1-15
16-25
26-35
36-45
46+
50% of blunders occur between move 16-25. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
8
8
6
9
5
6
9
7
6
5
abcdefgh
Many
Few
Critical squares
d59 err
e49 err
b58 err
c78 err
b37 err
d5/e4 concentrate most errors. Force decisions in those zones.
Recent Games
L
Idani, Pouya2599
Bundesliga 2025-26 · 26 Apr 2026
W
Sankalp Gupta2559
Bundesliga 2025-26 · 25 Apr 2026
L
Huschenbeth, Niclas2591
Bundesliga 2025-26 · 24 Apr 2026
D
Hracek, Zbynek2546
German Bundesliga 2025-26 · 22 Mar 2026
W
Maksimovic, Bojan2533
1. BL Pauli · 21 Mar 2026
W
Danzer, George2166
Titled Tue 17th Mar 2026 · 17 Mar 2026
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
London System
55.6%9 GamesLow sample·Loses
1.d4 d5 2.Bf4 Nf6
Strengths
AVOIDWhite
Sicilian: e6 Systems
62.5%32 Games·Wins
1.e4 c5 2.Nf3 e6
Caro-Kann: Panov-Botvinnik
61.5%13 Games·Wins
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4
Black
Caro-Kann: Panov-Botvinnik
54.5%11 Games·Wins
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4
Critical Blunders
Tactical errors analyzed with Stockfish
10 errors
▶
#24Qg3??
Tactics
vs Jiang
OTB·2025
▶
#30Be4??
Tactics
vs Blomqvist
OTB·2025
▶
#31Rc1??
Tactics
vs Van Foreest
OTB·2025
▶
#55Rd1??
Endgame
vs Ravi Krishna G
OTB·2025
▶
#39Nd5??
Tactics
vs Dautov
OTB·2025
▶
#19Qxc7??
Tactics
vs Yeritsyan
OTB·2024
▶
#33Be3??
Tactics
vs Knuedel
Rapid·2024
▶
#18Ndb3??
Tactics
vs Pechac
OTB·2024
▶
#28Qf3??
Tactics
vs Neiksans
OTB·2024
▶
#30Qg5??
Tactics
vs Lubbe
OTB·2024
Endgame Statistics
22 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2026
2025
2024
2023
2022
2021
PRO
8
76
5
4
3
2
1a
b
c
d
efgh631 Games
54%24%22%
1.e4
66%580
1.d4
66%44
1.Nf3
67%3
1.b3
67%3
1.c4
100%1