GM
Serper, Grigory
USA·Born 1969·FIDE #2012642·1,052 Games
USA Classical25221,032 Games
Rapid—10 Games
Blitz—10 Games
Statistics
1052
Total
399
Wins
466
Draws
187
Losses
38%44%18%
Play Style
What you need to know before facing them
Elite accuracy: 92.6% average
Low resilience (12%): Doesn't save lost positions
Very consistent (91%)
Very precise: only 0.0 blunders/game
Dominates 1.c4 ♔ (70% in 271 games)
Deep Analysis
Stockfish 18 · Classical games · 38 analyzed
Accuracy by phase
Opening96.7%
Middlegame93.3%
Endgame94.6%
Clutch Factor
Performance under pressure
Winning (+2 or more)96%
3 Games
Equal position95%
14 Games
Losing (-2 or more)90%
21 Games
Problematic Pieces
Which pieces cause most errors?
♞
24%
10 errors
♕
24%
10 errors
♖
20%
8 errors
♙
15%
6 errors
♗
12%
5 errors
♔
5%
2 errors
Critical Moment
When does the first serious error occur?
Move 20average
1-15
16-25
26-35
36-45
46+
100% of blunders occur between move 16-25. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
3
1
2
3
3
2
3
4
2
1
abcdefgh
Many
Few
Critical squares
f44 err
b73 err
d43 err
d53 err
e53 err
f4/b7 concentrate most errors. Force decisions in those zones.
Recent Games
L
Lugo, Blas2393
USCL QF 2009 · 11 Nov 2009
W
Van de Mortel, Jan2412
USCL 2009 · 4 Nov 2009
W
Andrews, Todd2329
USCL 2009 · 21 Oct 2009
W
Milman, Lev2474
USCL 2009 · 7 Oct 2009
D
Ehlvest, Jaan2607
USCL 2009 · 30 Sept 2009
L
Charbonneau, Pascal2509
USCL 2009 · 8 Sept 2009
Openings
Based on player games
Weaknesses
EXPLOIT!White
Ruy Lopez: Closed
45.5%11 Games·Loses
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7
Black
No significant weaknesses detected as Black
Strengths
AVOIDWhite
No consistent strengths detected as White
Black
No consistent strengths detected as Black
Critical Blunders
Tactical errors analyzed with Stockfish
6 errors
▶
#21Ne5??
Tacticsvs Grischuk
OTB·2000
▶
#20a8f8??
Endgamevs Kasparov
OTB·1998
▶
#24Rg1??
Tacticsvs Ivanchuk
OTB·1985
▶
#42Ke6??
Endgamevs Smyslov
Rapid
▶
#14Nxd4??
Tacticsvs Korchnoi
OTB
▶
#29Rb6??
Tacticsvs Smyslov
Rapid
Endgame Statistics
19 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2009
2008
2007
2006
2005
2004
PRO
8
76
5
4
3
2
1a
b
c
d
efgh534 Games
42%47%11%
1.c4
70%271
1.d4
63%133
1.e4
58%120
1.Nf3
56%9
1.g3
50%1