Z
GM
Zagrebelny, Sergey
UZB·Born 1965·FIDE #14200040·1,067 Games
Classical24851,057 Games
Rapid246310 Games
Blitz24650 Games
Play against Zagrebelny, Sergey's Twin
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1067 games analyzed
Statistics
Total
1067Wins
481Draws
343Losses
24345%32%23%
Play Style
What you need to know before facing themVery high accuracy: 89.5% average
Plays 5.8% better with white
Very consistent (83%)
Very precise: only 0.3 blunders/game
Dominates 1.e4 ♔ (67% in 521 games)
Vulnerable to 1.d4 ♔ (only 40%)
Deep Analysis
Stockfish 18 · Classical games · 15 analyzedAccuracy by phase
Opening
96.7%
Middlegame
93.1%
Endgame
92.8%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+9%Winning (+2 or more)
96%2g
Equal position
95%4g
Losing (-2 or more)
86%9g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
25%
6 errors
17%
4 errors
17%
4 errors
17%
4 errors
12%
3 errors
12%
3 errors
Critical Moment — When does the first serious error occur?
Move 34 average0%
0%
50%
50%
0%
1-15
16-25
26-35
36-45
46+
50% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
2
2
2
2
FewMany
Errors mapped
14
Hotspot zone
d5 / d6
Critical squares
d5
2 err
d6
2 err
g5
2 err
g6
2 err
b7
1 err
d5/d6 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 linesWhite64.2%Wins
French: Tarrasch — 1.e4 e6 2.d4 d5 3.Nd253 Games · last played 8 years ago
White64.1%Wins
Sicilian: Rossolimo — 1.e4 c5 2.Nf3 Nc6 3.Bb539 Games · last played 8 years ago
Black54.5%Wins
Sicilian: Alapin — 1.e4 c5 2.c3 d522 Games · last played 19 years ago
Critical Blunders
5 errors · Stockfish#18Bg7??vs BalashovOTB · 2019
#31Nxb7??vs DomogaevOTB · 2019
#39Bd6??vs MamedyarovOTB · 2004
#30Qg6??vs BronsteinOTB · 1993
#44Bg3??vs IvanchukOTB
Recent Games
1,067 GamesL
Rublevsky, Sergei(2652)
5. Starodubtsev Mem 2019 · 19 Jan 2019
D
Dreev, Aleksey(2670)
5. Starodubtsev Mem 2019 · 19 Jan 2019
D
Morozevich, Alexander(2656)
5. Starodubtsev Mem 2019 · 19 Jan 2019
L
Balashov, Yuri S(2470)
5. Starodubtsev Mem 2019 · 19 Jan 2019
L
Kobalia, Mikhail(2620)
5. Starodubtsev Mem 2019 · 18 Jan 2019
W
Yagupov, Igor(2405)
5. Starodubtsev Mem 2019 · 18 Jan 2019
Endgame Statistics
PRO9 endgame categories analyzedEndgame Statistics
Reveal weaknesses →
9 endgame categories analyzed — discover where they collapse under pressure
Repertoire
6
5
4
3
Move arrowsmost-played moves
Stockfish
537 Games
51%30%19%
MoveGamesPerformance%
1.e4
52167%
1.d4
1040%
1.Nf3
367%
1.c4
350%
UZB