Chess Stalker
B
GM

Bogner, Sebastian

SUI SUI·Born 1991

FIDE OTB · #4692055 · 1,374 Games

Classical25451,327 g
Rapid25468 g
Blitz250539 g

Play against Bogner's Twin

PRO

Uses their openings, level & style

Statistics

Total

1374

Wins

602

Draws

472

Losses

299
44%34%22%

Play Style

before facing them
Elite accuracy: 94.6% average
Solid conversion: 90%
Very consistent (93%)
Very precise: only 0.0 blunders/game
Dominates 1.Nf3 ♔ (74% in 146 games)
Vulnerable to 1.c4 ♚ (only 44%)

Deep Analysis

Stockfish 18 · Classical games · 100 analyzed
Accuracy by phase
Opening
97.2%
Middlegame
94.8%
Endgame
94.9%
Clutch Factor
+4%
Winning (+2)
95%
Equal
96%
Losing (−2)
92%
Problematic Pieces
37%
29 err
21%
16 err
14%
11 err
13%
10 err
10%
8 err
5%
4 err
Critical Moment
Move 25 avg
0%
1-15
100%
16-25
0%
26-35
0%
36-45
0%
46+
100% of blunders after move 16-25 — keep the tension until then.
Error Heatmap
6
Few
Many
h4
6 err
b5
4 err
b6
4 err
d5
4 err
h6
4 err
h4/b5 account for most of the errors. Force decisions in those zones.

Openings

1,374 Games

Weaknesses

— exploit these

No significant weaknesses detected as white

asblack64.3%Losses
King's Indian: Main Line — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O
14 Games · last played 12 months agoPlay this line
asblack62.5%Losses
King's Indian: Classical — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5
8 Games · Low sample · last played 12 months agoPlay this line

Strengths

— avoid these
aswhite76.9%Wins
Slav: Semi-Slav — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3
13 Games · last played 12 months ago
aswhite66.7%Wins
Nimzo-Indian: Classical — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2
12 Games · last played 2 years ago
asblack60.0%Wins
Reti vs King's Indian — 1.Nf3 Nf6 2.c4 g6
10 Games · last played 3 years ago
asblack53.8%Wins
Sicilian: Taimanov — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6
13 Games · last played 2 years ago

Critical Blunders

10 errors
Rb5??vs SaraciOTB · 2026
Qxd5??vs TezcanOTB · 2026
f4??vs KamerOTB · 2026
Qf7+??vs StremaviciusOTB · 2025
Rd7??vs KeymerOTB · 2025
Rd7??vs KeymerOTB · 2025
Bxh4??vs GrandeliusOTB · 2025
Re7??vs MiguelOTB · 2024
Rh4??vs StormeOTB · 2024
b5??vs StijveOTB · 2024

Recent Games

Win
Mosesov, Danyil(2466)

TCh-SUI 2026 · 21 Jun 2026

1-0
Win
Kaczmarczyk, Dennis(2451)

TCh-SUI 2026 · 20 Jun 2026

0-1
Loss
Saraci, Nderim(2468)

Prishtina Int Open 2026 · 18 Jun 2026

0-1
Win
Tezcan, Alper(2224)

Prishtina Int Open 2026 · 17 Jun 2026

1-0
Loss
Kamer, Kayra(2319)

Prishtina Int Open 2026 · 16 Jun 2026

1-0
Win
Rama, Rame(1989)

Prishtina Int Open 2026 · 15 Jun 2026

0-1

Endgame Statistics

PRO

Repertoire

8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Move arrowsmost-played moves
Starting Position
Stockfish
717 Games
47%35%18%
MoveGamesPerformance%
1.d4
331
63%
1.e4
223
60%
1.Nf3Strong
146
74%
1.c4
15
70%
1.g3
1
50%
1.a3Strong
1
100%

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