B
GM
Bilguun, Sumiya
MGL·Born 1997·FIDE #4901541·1,295 Games
Classical2428950 Games
Rapid2496194 Games
Blitz2415192 Games
Play against Bilguun, Sumiya's Twin
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1295 games analyzed
Statistics
Total
1295Wins
512Draws
412Losses
36840%32%28%
Play Style
What you need to know before facing themElite accuracy: 93.0% average
Solid conversion: 82%
Very consistent (87%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 ♔ (60% in 630 games)
Vulnerable to 1.c4 ♚ (only 42%)
Deep Analysis
Stockfish 18 · Classical games · 279 analyzedAccuracy by phase
Opening
96.3%
Middlegame
93.0%
Endgame
94.7%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+3%Winning (+2 or more)
93%100g
Equal position
94%114g
Losing (-2 or more)
90%65g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
24%
64 errors
21%
56 errors
18%
48 errors
15%
39 errors
13%
34 errors
10%
27 errors
Critical Moment — When does the first serious error occur?
Move 41 average0%
19%
24%
19%
38%
1-15
16-25
26-35
36-45
46+
38% of blunders occur between move 46+. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
10
12
FewMany
Errors mapped
90
Hotspot zone
c4 / e5
Critical squares
c4
12 err
e5
10 err
b5
9 err
d4
9 err
e1
9 err
c4/e5 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesWeaknesses
— exploit these linesNo significant weaknesses detected as White
No significant weaknesses detected as Black
Strengths
— avoid these linesNo consistent strengths detected as White
Black53.8%Wins
Sicilian: Alapin — 1.e4 c5 2.c3 d513 Games · last played 7 months ago
Black50.0%Wins
Sicilian: Closed — 1.e4 c5 2.Nc3 e612 Games · last played 2 months ago
Critical Blunders
10 errors · Stockfish#10h6??vs ShirovOTB · 2026
#15f3??vs DingOTB · 2026
#25Nd5??vs MotylevBlitz · 2025
#55Kf5??vs LodiciBlitz · 2025
#47h3??vs PonkratovBlitz · 2025
#72Kd6??vs MamedyarovBlitz · 2025
#40Qd5??vs NesterovBlitz · 2025
#23Bxe4??vs AnsatBlitz · 2025
#104a7??vs TinBlitz · 2025
#30Rd5??vs IndjicRapid · 2025
Recent Games
1,295 GamesW
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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
639 Games
43%33%24%
MoveGamesPerformance%
1.e4
63160%
1.c4
463%
1.Nf3
367%
1.b3Strong
1100%
MGL