H
GM
Halkias, Stelios
GRE·Born 1980·FIDE #4201809·3,323 Games
Classical24982,991 Games
Rapid2457166 Games
Blitz2465188 Games
Play against Halkias, Stelios's Twin
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3323 games analyzed
Statistics
Total
3323Wins
1576Draws
986Losses
76047%30%23%
Play Style
What you need to know before facing themElite accuracy: 93.2% average
Solid conversion: 84%
Very consistent (86%)
Very precise: only 0.1 blunders/game
Dominates 1.c4 ♔ (75% in 100 games)
Deep Analysis
Stockfish 18 · Classical games · 272 analyzedAccuracy by phase
Opening
96.3%
Middlegame
93.1%
Endgame
94.5%
Clutch Factor
+5%Winning (+2 or more)
94%107g
Equal position
94%109g
Losing (-2 or more)
89%56g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
23%
56 errors
21%
52 errors
19%
46 errors
15%
37 errors
13%
32 errors
10%
25 errors
Critical Moment — When does the first serious error occur?
Move 40 average5%
5%
36%
27%
27%
1-15
16-25
26-35
36-45
46+
36% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
12
14
14
FewMany
Errors mapped
94
Hotspot zone
e4 / e5
Critical squares
e4
14 err
e5
14 err
e6
12 err
c5
10 err
g4
10 err
e4/e5 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesWeaknesses
— exploit these linesNo significant weaknesses detected as White
Black62.5%Loses
Italian: Fried Liver — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5
8 Games · Low sample · last played 4 years agoPlay this line
Black53.8%Loses
Caro-Kann: Exchange — 1.e4 c6 2.d4 d5 3.exd5
13 Games · last played 3 years agoPlay this line
Strengths
— avoid these linesWhite68.0%Wins
King's Indian: Main Line — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O50 Games · last played 3 months ago
White67.4%Wins
King's Indian: Classical — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e543 Games · last played 3 months ago
Black72.7%Wins
Catalan — 1.d4 Nf6 2.c4 e6 3.g311 Games · last played last year
Black70.0%Wins
London System — 1.d4 Nf6 2.Bf4 d510 Games
Critical Blunders
10 errors · Stockfish#35Bd2??vs MekhitarianOTB · 2026
#37Bf6??vs MartirosyanOTB · 2026
#59Bc5??vs MendoncaOTB · 2026
#38Rxb7??vs IndjicOTB · 2026
#29Rb4??vs MoroniOTB · 2026
#80Ke3??vs AltiniBlitz · 2025
#52Rbc1+??vs SuleymenovBlitz · 2025
#43e3??vs Praggnanandhaa RBlitz · 2025
#43Re8??vs WojtaszekBlitz · 2025
#71Kf4??vs AnsatRapid · 2025
Recent Games
3,323 GamesW
Zierk, Steven(2489)
Titled Tue 16th Jun 2026 · 16 Jun 2026
W
Banzea, Alexandru-Bogdan(2394)
Titled Tue 16th Jun 2026 · 16 Jun 2026
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Vlassov, Nikolai(2322)
Titled Tue 16th Jun 2026 · 16 Jun 2026
W
Brunner, Nicolas(2409)
Titled Tue 16th Jun 2026 · 16 Jun 2026
W
Mekhitarian, Krikor Sevag(2544)
Titled Tue 16th Jun 2026 · 16 Jun 2026
L
Nakamura, Hikaru(2792)
Titled Tue 16th Jun 2026 · 16 Jun 2026
Endgame Statistics
PRO23 endgame categories analyzedEndgame Statistics
Reveal weaknesses →
23 endgame categories analyzed — discover where they collapse under pressure
Repertoire
6
5
4
3
Move arrowsmost-played moves
Stockfish
1672 Games
53%29%18%
MoveGamesPerformance%
1.Nf3
76066%
1.d4
73769%
1.c4Strong
10075%
1.e4
7457%
1.b3
150%
GRE