Jenni, Florian

SUI SUI·Born 1980·FIDE #1304232·1,309 Games

Classical24641,232 Games

Rapid243611 Games

Blitz240766 Games

Statistics

1309

Total

526

Wins

409

Draws

374

Losses

40%31%29%

Play Style

What you need to know before facing them

Elite accuracy: 93.2% average

Very consistent (91%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 ♔ (61% in 579 games)

Vulnerable to 1.Nf3 ♚ (only 47%)

Deep Analysis

Stockfish 18 · Classical games · 35 analyzed

Accuracy by phase

Opening96.3%

Middlegame93.2%

Endgame94.7%

Clutch Factor

Performance under pressure

+4%

Winning (+2 or more)94%

6 Games

Equal position95%

18 Games

Losing (-2 or more)90%

11 Games

Problematic Pieces

Which pieces cause most errors?

♙

34%

12 errors

♖

29%

10 errors

♗

14%

5 errors

♔

3 errors

♕

3 errors

♞

2 errors

Critical Moment

When does the first serious error occur?

Move 27average

1-15

16-25

26-35

36-45

46+

100% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

abcdefgh

Many

Few

Critical squares

h63 err

d32 err

d72 err

e42 err

f42 err

h6/d3 concentrate most errors. Force decisions in those zones.

Recent Games

Gautier, Anand2267

Swiss National League A 2... · 17 Mar 2026

½-½

Gautier, Anand2255

TCh-SUI 2026 · 15 Mar 2026

½-½

Kurmann, Oliver2414

TCh-SUI 2025 · 28 Sept 2025

½-½

Moor, Olivier2280

Switzerland Team Champion... · 27 Sept 2025

½-½

Bauer,Ch2556

TCh-SUI 2025 · 24 Aug 2025

0-1

Bauer, Christian2556

TCh-SUI 2025 · 24 Aug 2025

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!

White

French: Classical

40.7%

27 Games·Loses

1.e4 e6 2.d4 d5 3.Nc3 Nf6

Black

Catalan

53.8%

13 Games·Loses

1.d4 Nf6 2.c4 e6 3.g3

Reti: Double Fianchetto

53.8%

13 Games·Loses

1.Nf3 Nf6 2.g3 d5

Strengths

AVOID

White

Sicilian: Rossolimo

61.9%

21 Games·Wins

1.e4 c5 2.Nf3 Nc6 3.Bb5

Black

Italian: Two Knights

50.0%

20 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6

Scotch: Mieses

50.0%

20 Games·Wins

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6

Critical Blunders

Tactical errors analyzed with Stockfish

9 errors

▶

#21Rxd7+??

Tactics

vs Georgiadis

OTB·2025

▶

#21Rxd7+??

Tactics

vs Georgiadis

OTB·2025

▶

#11Nc7??

Tactics

vs Burri

OTB·2025

▶

#35Bxe5??

Tactics

vs Schweizer

Blitz·2023

▶

#37Re4??

Tactics

vs Baenziger

Blitz·2023

▶

#62Qd3??

Endgame

vs Caruana

OTB·2009

▶

#27Bxf7??

Tactics

vs Korchnoi

OTB·2001

▶

#42a3??

Endgame

vs Kramnik

OTB·1999

▶

#41Rf3??

Endgame

vs Korchnoi

OTB·1998

Endgame Statistics

20 endgame categories analyzed — discover where they collapse under pressure

Repertoire

☰ All

♟ Classical

⚡ Rapid

🔥 Blitz

PRO

2026

2025

2023

2021

2020

2018

PRO

Starting Position

642 Games

45%31%24%

Move	Games	%
1.e4	579	61%
1.Nf3	35	60%
1.d4	23	59%
1.g3 Strong	2	75%
1.b3 Strong	2	75%
1.c4	1	50%

1.e4

61%

579

1.Nf3

60%

1.d4

59%

1.g3

75%

1.b3

75%

1.c4

50%

Jenni, Florian

Play against Jenni, Florian's Twin

Statistics

Play Style

Deep Analysis

Clutch Factor

Problematic Pieces

Critical Moment

Error Heatmap

Recent Games

Openings

Weaknesses

French: Classical

Catalan

Reti: Double Fianchetto

Strengths

Sicilian: Rossolimo

Italian: Two Knights

Scotch: Mieses

Critical Blunders