IM
Kuipers, Stefan
NED·Born 1990·FIDE #1018400·996 Games
NED Classical2454974 Games
Rapid—0 Games
Blitz247122 Games
Statistics
996
Total
386
Wins
338
Draws
272
Losses
39%34%27%
Play Style
What you need to know before facing them
Elite accuracy: 92.8% average
Solid conversion: 86%
Very consistent (89%)
Very precise: only 0.1 blunders/game
Deep Analysis
Stockfish 18 · Classical games · 106 analyzed
Accuracy by phase
Opening96.4%
Middlegame93.0%
Endgame94.7%
Clutch Factor
Performance under pressure
Winning (+2 or more)92%
29 Games
Equal position95%
47 Games
Losing (-2 or more)90%
30 Games
Problematic Pieces
Which pieces cause most errors?
♞
21%
18 errors
♖
21%
18 errors
♔
16%
14 errors
♕
16%
14 errors
♙
14%
12 errors
♗
12%
10 errors
Critical Moment
When does the first serious error occur?
Move 41average
1-15
16-25
26-35
36-45
46+
33% of blunders occur between move 36-45. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
3
2
9
3
2
3
2
2
3
3
abcdefgh
Many
Few
Critical squares
d59 err
e53 err
f13 err
f23 err
f73 err
d5/e5 concentrate most errors. Force decisions in those zones.
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Openings
Based on player games
Analyzing opening repertoire...
Critical Blunders
Tactical errors analyzed with Stockfish
10 errors
▶
#29Rd7??
Tactics
vs De Schampheleire
OTB·2025
▶
#51Rf1??
Endgame
vs Abdulla
OTB·2025
▶
#54Kg8??
Endgame
vs Zelbel
OTB·2025
▶
#55Nd4??
Endgame
vs Van Gisbergen
OTB·2024
▶
#43Nf2??
Endgame
vs Gurevich
OTB·2024
▶
#31Qf2??
Tactics
vs Hausrath
OTB·2024
▶
#45Ke5??
Endgame
vs Blokhuis
OTB·2023
▶
#70Kh8??
Endgame
vs Zwirs
OTB·2022
▶
#19Rd1??
Tactics
vs Okkes
OTB·2022
▶
#28Bxe5??
Tactics
vs Van Wessel
OTB·2022
Endgame Statistics
22 endgame categories analyzed — discover where they collapse under pressure
Repertoire
Applying filter...