Scouting report: Florian Jenni (GM, SUI)

1,284 over-the-board games in the Chess Stalker database (1,209 classical, 11 rapid, 64 blitz): 40% wins, 31% draws, 28% losses. FIDE rating 2466 standard, 2436 rapid, 2407 blitz. 34 games analyzed with Stockfish: 93% accuracy, 0.03 blunders per game.

  • Opening repertoire of Florian Jenni as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Florian Jenni's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1304232 — no account needed.

Florian Jenni

GM

Switzerlandborn 1980FIDE ID 1304232

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2380
2420
2460
2500
2456 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2466
2436
2407
2550peak, Apr 2008
1,284games
519wins, 40%
403draws, 31%
362losses, 28%

Play style

before facing them
Elite accuracy: 93.2% average
Very consistent (91%)
Very precise: only 0.0 blunders/game
Dominates 1.e4 as ♔ (62% in 568 games)
Vulnerable to 1.Nf3 ♚ (only 48%)

Play against Jenni's Twin

Their real openings, level & style

Based on 1,284 games

Openings

1,284 games

Weaknesses

where they slip as ♔ White
King's Gambit1.e4 e5 2.f4 d511 games, last played 3 years ago45.5%losses

Strengths

what holds up for them as ♔ White
Sicilian: Rossolimo1.e4 c5 2.f3 c6 3.b519 games, last played 6 years ago63.2%wins
Ruy Lopez: Morphy1.e4 e5 2.f3 c6 3.b5 a634 games, last played last year55.9%wins

Deep analysis

Stockfish · Classical · 34 analyzed
Accuracy by phase
Opening
96.2%
Middlegame
93.2%
Endgame
94.7%
Clutch factor
+5%
Winning (+2)
94%
Equal
95%
Losing (−2)
90%
Problematic pieces
36%
12 err
27%
9 err
15%
5 err
9%
3 err
6%
2 err
6%
2 err
Critical moment
Move 27 avg
0%
1-15
0%
16-25
100%
26-35
0%
36-45
0%
46+
100% of blunders occur after move 26-35. Keep tension until then.
Error heatmap · Critical squares
3
Few
Many
h6
3
d3
2
e4
2
f4
2
g6
2
h6/d3 concentrate most errors. Force decisions in those zones.

Critical blunders

8 errors
#21
xd7+?? vs Georgiadis
Middlegame · OTB · 2025
#11
c7?? vs Burri
Opening · OTB · 2025
#35
xe5?? vs Schweizer
Endgame · Blitz · 2023
#37
e4?? vs Baenziger
Endgame · Blitz · 2023
#62
d3?? vs Caruana
Endgame · OTB · 2009
#27
xf7?? vs Korchnoi
Middlegame · OTB · 2001

Recent games

Maeser, Fabian(2234)

TCh-SUI 2026 · 23 Aug 2026

1–0
Pelletier, Yannick(2521)

TCh-SUI 2026 · 22 Aug 2026

½–½
Ustianovich, Nazar(2314)

TCh-SUI 2026 · 21 Jun 2026

1–0
Martins, David Pires Tavares(2432)

TCh-SUI 2026 · 20 Jun 2026

0–1
Mattenberger, Matthias(2293)

TCh-SUI 2026 · 31 May 2026

1–0
Zeller, Frank(2316)

TCh-SUI 2026 · 19 Apr 2026

½–½

Endgame statistics

Repertoire

PRO
1,284 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
632 games46%W31%D23%L
Move
1. e4
5683w
47%29%24
62%
1. f3
363m
39%44%17
61%
1. d4
233y
35%48%17
59%
1. g3
2Jun 2000
50%50%
75%
1. b3
217y
50%50%
75%
1. c4
118y
100%
50%

🍪 Cookies · Chess Stalker stores in your browser only what it needs to work (session and preferences) and measures its audience with its own cookie-free analytics. Analytics are optional.