Koch, Jean-Rene

FRA FRA·Born 1970·FIDE #600148·742 Games

Classical2434742 Games

Rapid24340 Games

Blitz—0 Games

Statistics

742

Total

268

Wins

279

Draws

195

Losses

36%38%26%

Play Style

What you need to know before facing them

Elite accuracy: 93.5% average

Plays 2.5% better with black

Very consistent (92%)

Very precise: only 0.1 blunders/game

Dominates 1.d4 ♔ (71% in 24 games)

Vulnerable to 1.d4 ♚ (only 44%)

Deep Analysis

Stockfish 18 · Classical games · 26 analyzed

Accuracy by phase

Opening95.7%

Middlegame93.9%

Endgame94.3%

Clutch Factor

Performance under pressure

+3%

Winning (+2 or more)94%

5 Games

Equal position95%

10 Games

Losing (-2 or more)91%

11 Games

Problematic Pieces

Which pieces cause most errors?

♙

29%

8 errors

♞

25%

7 errors

♖

21%

6 errors

♕

14%

4 errors

♔

2 errors

♗

1 errors

Critical Moment

When does the first serious error occur?

Move 35average

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

abcdefgh

Many

Few

Critical squares

c33 err

b12 err

c42 err

d72 err

g62 err

c3/b1 concentrate most errors. Force decisions in those zones.

Recent Games

Eugene, Floryan2373

TCh-FRA Top 16 Basse 2022 · 19 Jun 2022

0-1

Roubert, Emile2027

TCh-FRA Top 16 Basse 2022 · 18 Jun 2022

1-0

Rouler, Charly2346

TCh-FRA Top 16 Basse 2022 · 17 Jun 2022

1-0

Maurizzi, Marc`Andria2490

TCh-FRA Top 16 GpA 2022 · 15 Jun 2022

½-½

Maurizzi,Marc Andria2490

TCh-FRA Top 16 GpA 2022 · 15 Jun 2022

½-½

Flom, Gabriel2428

TCh-FRA Top 16 GpA 2022 · 14 Jun 2022

1-0

Openings

Based on player games

Weaknesses

EXPLOIT!

White

No significant weaknesses detected as White

Black

No significant weaknesses detected as Black

Strengths

AVOID

White

Sicilian: Taimanov

60.0%

10 Games·Wins

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6

Black

Sicilian: e6 Systems

46.7%

15 Games·Wins

1.e4 c5 2.Nf3 e6

Critical Blunders

Tactical errors analyzed with Stockfish

3 errors

▶

#35g6??

Tactics

vs Loiseau

OTB·2022

▶

#27Rg1??

Tactics

vs Geenen

OTB·2019

▶

#50d6d3??

Endgame

vs Kasparov

OTB

Endgame Statistics

9 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

2022

2019

2018

2017

2015

2014

PRO

Starting Position

399 Games

40%35%25%

Move	Games	%
1.e4	330	57%
1.c4	43	52%
1.d4 Strong	24	71%
1.Nf3 Strong	2	75%

1.e4

57%

330

1.c4

52%

1.d4

71%

1.Nf3

75%