B
IM
Brokken, Dennis
NED·Born 1982·FIDE #1010069·271 Games
NED Classical2465271 Games
Rapid24250 Games
Blitz23650 Games
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271 games analyzed
Statistics
Total
271Wins
130Draws
66Losses
7548%24%28%
Play Style
What you need to know before facing themVery high accuracy: 89.6% average
Very consistent (98%)
Dominates 1.d4 ♔ (74% in 96 games)
Vulnerable to 1.Nf3 ♚ (only 46%)
Deep Analysis
Stockfish 18 · Classical games · 2 analyzedAccuracy by phase
Opening
97.9%
Middlegame
92.2%
Endgame
86.5%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
-4%Winning (+2 or more)
85%0g
Equal position
85%0g
Losing (-2 or more)
90%2g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
43%
6 errors
21%
3 errors
14%
2 errors
14%
2 errors
7%
1 errors
0%
0 errors
Critical Moment — When does the first serious error occur?
Move 59 average0%
0%
0%
0%
100%
1-15
16-25
26-35
36-45
46+
100% of blunders occur between move 46+. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
2
FewMany
Errors mapped
11
Hotspot zone
a1 / b1
Critical squares
a1
2 err
b1
1 err
b2
1 err
b4
1 err
e2
1 err
a1/b1 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 linesWhite61.1%Wins
King's Indian — 1.d4 Nf6 2.c4 g618 Games · last played 3 years ago
White56.3%Wins
Slav Defense — 1.d4 d5 2.c4 c616 Games · last played 3 years ago
No consistent strengths detected as Black
Critical Blunders
1 errors · Stockfish#59axb4??vs MamedovOTB · 2023
Recent Games
271 GamesD
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Repertoire
8
76
5
4
3
2
1a
b
c
d
efghMove arrowsmost-played moves
Stockfish
140 Games
56%24%20%
MoveGamesPerformance%
1.d4Strong
9675%
1.e4
2259%
1.Nf3
1350%
1.c4
856%
1.Nc3Weak
10%