C
GM
Chatalbashev, Boris
DEN·Born 1974·FIDE #2900440·2,983 Games
Classical25072,940 Games
Rapid246924 Games
Blitz241019 Games
Play against Chatalbashev, Boris's Twin
PROUses their openings, level & style
Practice against a bot that uses their real openings and playing style
Ready to play
2983 games analyzed
Statistics
Total
2983Wins
1503Draws
997Losses
48250%33%16%
Play Style
What you need to know before facing themElite accuracy: 93.5% average
High resilience (56%): Dangerous even when losing
Solid conversion: 88%
Very consistent (87%)
Very precise: only 0.1 blunders/game
Dominates 1.c4 ♔ (75% in 214 games)
Deep Analysis
Stockfish 18 · Classical games · 495 analyzedAccuracy by phase
Opening
96.1%
Middlegame
93.7%
Endgame
95.5%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+5%Winning (+2 or more)
94%255g
Equal position
95%159g
Losing (-2 or more)
89%75g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
26%
107 errors
19%
77 errors
17%
71 errors
15%
61 errors
13%
54 errors
11%
46 errors
Critical Moment — When does the first serious error occur?
Move 37 average3%
19%
31%
28%
19%
1-15
16-25
26-35
36-45
46+
31% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
12
14
12
FewMany
Errors mapped
111
Hotspot zone
e5 / c5
Critical squares
e5
14 err
c5
12 err
e3
12 err
b4
11 err
g3
11 err
e5/c5 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesWeaknesses
— exploit these linesNo significant weaknesses detected as White
Black100.0%Loses
English: Symmetrical — 1.c4 c5 2.Nf3 Nc6
9 Games · Low sample · last played 11 months agoPlay this line
Strengths
— avoid these linesWhite69.8%Wins
Grünfeld — 1.d4 Nf6 2.c4 g6 3.Nc3 d563 Games · last played 5 months ago
White63.2%Wins
Reti: KIA — 1.Nf3 d5 2.g3 Nf619 Games · last played 3 months ago
Black60.0%Wins
Sicilian: Closed — 1.e4 c5 2.Nc3 Nc610 Games · last played 4 years ago
Black60.0%Wins
Nimzo-Indian — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb410 Games
Critical Blunders
10 errors · Stockfish#40Qc6??vs XuOTB · 2025
#23Ne5??vs RasmussenOTB · 2025
#46a2??vs BallottiOTB · 2025
#59a2??vs BrozziOTB · 2025
#22Kf2??vs HanOTB · 2025
#25Kg2??vs NigmatovOTB · 2025
#38Re8??vs SowinskiOTB · 2025
#36Qd6+??vs Vantika AgrawalOTB · 2025
#42Qe5??vs PetrovskiyOTB · 2025
#29Qa7??vs KanovOTB · 2025
Recent Games
2,983 GamesL
Matthiesen, Martin(2275)
SonFlow Cup 2026 · 19 Apr 2026
W
Skytte, Rasmus(2350)
SonFlow Cup 2026 · 19 Apr 2026
W
Kopylov, Daniel(2434)
SonFlow Cup 2026 · 18 Apr 2026
D
Pajeken, Jakob Leon(2452)
SonFlow Cup 2026 · 18 Apr 2026
W
Kopylov, Michael(2343)
SonFlow Cup 2026 · 17 Apr 2026
W
Pilgaard, Kim(2351)
Danish Championship 2026 ... · 5 Apr 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
1516 Games
57%30%13%
MoveGamesPerformance%
1.d4Strong
114172%
1.c4Strong
21475%
1.Nf3
12165%
1.g3Strong
2871%
1.b3
1250%
DEN