GM
Piket, Jeroen
NED·Born 1969·FIDE #1000055·2,006 Games
NED Classical26241,826 Games
Rapid—159 Games
Blitz—21 Games
Statistics
2006
Total
666
Wins
862
Draws
478
Losses
33%43%24%
Play Style
What you need to know before facing them
Elite accuracy: 92.0% average
Low resilience (31%): Doesn't save lost positions
Very precise: only 0.1 blunders/game
Dominates 1.c4 ♔ (73% in 13 games)
Deep Analysis
Stockfish 18 · Classical games · 244 analyzed
Accuracy by phase
Opening96.8%
Middlegame93.6%
Endgame94.7%
Clutch Factor
Performance under pressure
Winning (+2 or more)92%
29 Games
Equal position93%
111 Games
Losing (-2 or more)91%
104 Games
Problematic Pieces
Which pieces cause most errors?
♖
21%
65 errors
♗
20%
61 errors
♙
18%
56 errors
♞
16%
50 errors
♕
15%
46 errors
♔
10%
30 errors
Critical Moment
When does the first serious error occur?
Move 36average
1-15
16-25
26-35
36-45
46+
26% of blunders occur between move 36-45. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
11
10
9
9
11
11
9
8
10
10
abcdefgh
Many
Few
Critical squares
c411 err
e611 err
g511 err
e110 err
f610 err
c4/e6 concentrate most errors. Force decisions in those zones.
Recent Games
L
Ernst, Sipke2475
? · 10 May 2003
D
Breder, Dennis2445
Godesberg - Solingen · 15 Mar 2003
D
Lutz, Christopher2640
Solingen - Porz · 9 Mar 2003
W
Sielecki, Christof2390
? · 22 Feb 2003
W
Cheko, J.2230
? · 15 Feb 2003
D
Polaczek, Richard2424
? · 15 Feb 2003
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
No significant weaknesses detected as Black
Strengths
AVOIDWhite
Reti vs King's Indian
61.5%13 Games·Wins
1.Nf3 Nf6 2.c4 g6
Black
No consistent strengths detected as Black
Critical Blunders
Tactical errors analyzed with Stockfish
10 errors
▶
#40a4??
Tacticsvs Kramnik
OTB·2001
▶
#32Nxd5??
Tacticsvs Topalov
OTB·2001
▶
#49Ke6??
Endgamevs Kramnik
Rapid·2001
▶
#37Qd4+??
Endgamevs Topalov
OTB·2000
▶
#51Ree2??
Endgamevs Topalov
Rapid·2000
▶
#37Be5??
Tacticsvs Kramnik
Rapid·2000
▶
#57h4??
Endgamevs Topalov
Rapid·1999
▶
#41Ng6??
Endgamevs Kramnik
OTB·1999
▶
#51d5c5??
Endgamevs Karpov
Rapid·1999
▶
#38e3e1??
Endgamevs Karpov
OTB·1999
Endgame Statistics
23 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2003
2002
2001
2000
1999
1998
PRO
8
76
5
4
3
2
1a
b
c
d
efgh1020 Games
38%45%17%
1.d4
60%895
1.Nf3
60%82
1.e4
59%23
1.c4
73%13
1.g3
30%5
1.b3
100%2