GM
Kosteniuk, Alexandra
SUI·Born 1984·FIDE #4128125·6,768 Games
SUI Classical24965,403 Games
Rapid2452629 Games
Blitz2401814 Games
Statistics
6768
Total
3311
Wins
1572
Draws
1876
Losses
49%23%28%
Play Style
What you need to know before facing them
Elite accuracy: 90.7% average
Very consistent (85%)
Very precise: only 0.2 blunders/game
Dominates 1.Nc3 ♚ (80% in 10 games)
Deep Analysis
Stockfish 18 · Classical games · 1,276 analyzed
Accuracy by phase
Opening96.3%
Middlegame91.8%
Endgame93.8%
Clutch Factor
Performance under pressure
Winning (+2 or more)93%
210 Games
Equal position93%
164 Games
Losing (-2 or more)89%
126 Games
Problematic Pieces
Which pieces cause most errors?
♖
22%
147 errors
♗
18%
120 errors
♕
18%
124 errors
♙
17%
116 errors
♞
13%
90 errors
♔
12%
82 errors
Critical Moment
When does the first serious error occur?
Move 39average
1-15
16-25
26-35
36-45
46+
41% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
17
20
20
19
23
25
22
18
17
18
abcdefgh
Many
Few
Critical squares
d525 err
c523 err
e522 err
d620 err
e620 err
d5/c5 concentrate most errors. Force decisions in those zones.
Recent Games
W
Bulmaga, Irina2361
TCh-FRA Top 12 w GpA · 17 May 2026
L
Ushenina, Anna2420
TCh-FRA Top 12 w GpA · 16 May 2026
W
Zatonskih, Anna2317
TCh-FRA Top 12 w GpA · 15 May 2026
W
Batsiashvili, Nino2475
TCh-FRA Top 12 w GpA · 13 May 2026
D
Le Tuan Minh (VIE)2585
Titled Tue 12th May 2026 · 12 May 2026
W
Davudov, Tunar2379
Titled Tue 12th May 2026 · 12 May 2026
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
Reti: KIA
57.1%21 Games·Loses
1.Nf3 d5 2.g3 Nf6
Strengths
AVOIDWhite
King's Indian: Classical
90.9%11 Games·Wins
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5
King's Indian: Main Line
73.3%15 Games·Wins
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O
Black
Caro-Kann: Panov-Botvinnik
58.8%34 Games·Wins
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4
Sicilian: Closed
57.1%21 Games·Wins
1.e4 c5 2.Nc3 Nc6
Critical Blunders
Tactical errors analyzed with Stockfish
10 errors
▶
#47Ne6??
Endgame
vs Bulmaga
Blitz·2026
▶
#38g4??
Tactics
vs Batsiashvili
Blitz·2026
▶
#40Ne4??
Tactics
vs Badelka
Blitz·2026
▶
#27Nh4??
Tactics
vs Beydullayeva
Blitz·2026
▶
#45Qh2+??
Endgame
vs Buksa
Blitz·2026
▶
#25Nc6??
Tactics
vs Batsiashvili
Blitz·2026
▶
#28Kd7??
Tactics
vs Roebers
Blitz·2026
▶
#49Ne3??
Endgame
vs Hunt
Blitz·2026
▶
#11f5??
Tactics
vs Kiolbasa
Blitz·2026
▶
#16h6??
Tactics
vs Rakshitta Ravi
Blitz·2025
Endgame StatisticsPRO
Analyzing...
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2026
2025
2024
2023
2022
2021
PRO
8
76
5
4
3
2
1a
b
c
d
efgh3425 Games
54%22%24%
1.e4
64%2937
1.Nf3
73%239
1.d4
72%201
1.c4
63%36
1.f4
50%4
1.b3
63%4
1.g4
100%3
1.h4
100%1