P
IM

Pajeken, Jakob Leon

GER GER·Born 2003·FIDE #12942839·1,806 Games

Classical24751,714 Games
Rapid24200 Games
Blitz246292 Games

Play against Pajeken, Jakob Leon's Twin

PRO

Uses their openings, level & style

Statistics

Total

1806

Wins

720

Draws

433

Losses

646
40%24%36%

Play Style

What you need to know before facing them
Elite accuracy: 93.4% average
Solid conversion: 86%
Very consistent (90%)
Very precise: only 0.1 blunders/game
Dominates 1.Nf3 ♔ (69% in 107 games)
Vulnerable to 1.c4 ♚ (only 33%)

Deep Analysis

Stockfish 18 · Classical games · 485 analyzed
Accuracy by phase
Opening
96.8%
Middlegame
93.5%
Endgame
94.9%
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)
94%161g
Equal position
95%200g
Losing (-2 or more)
90%124g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
21%
73 errors
21%
75 errors
18%
63 errors
16%
57 errors
13%
47 errors
11%
40 errors
Critical Moment — When does the first serious error occur?
Move 42 average
0%
26%
32%
5%
37%
1-15
16-25
26-35
36-45
46+
37% of blunders occur between move 46+. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
23
Few
Many
Critical squares
e5
23 err
f5
12 err
f6
12 err
b4
11 err
c3
11 err
e5/f5 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines
White62.5%Loses
Slav Defense — 1.d4 d5 2.c4 c6
8 Games · Low sample · last played 2 years agoPlay this line
White60.0%Loses
Italian: Giuoco Piano — 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5
10 Games · last played 3 weeks agoPlay this line
Black60.0%Loses
Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e6
10 Games · last played 9 months agoPlay this line
Black57.1%Loses
English: Four Knights — 1.c4 e5 2.Nc3 Nf6
14 Games · last played 10 months agoPlay this line

Strengths

— avoid these lines
White56.0%Wins
Queen's Gambit Declined — 1.d4 d5 2.c4 e625 Games · last played 10 months ago

No consistent strengths detected as Black

Critical Blunders

10 errors · Stockfish
Kd3??vs DahlOTB · 2025
Re7??vs DyrgaardOTB · 2025
e5??vs KantansOTB · 2025
Ne7??vs StankovicOTB · 2025
Kc6??vs OlsenOTB · 2025
Kh2??vs EngelOTB · 2025
Bd7??vs KlimkowskiOTB · 2025
d6??vs LemmersOTB · 2025
Ra7??vs SmithOTB · 2024
Ng4??vs NeuhoffOTB · 2024

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Endgame Statistics

PRO23 endgame categories analyzed
Endgame Statistics
Reveal weaknesses →
Repertoire
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Move arrowsmost-played moves
Stockfish
906 Games
44%23%33%
MoveGamesPerformance%
1.d4
511
52%
1.e4
278
57%
1.Nf3
107
69%
1.c4
6
67%
1.e3
4
50%

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