What is Sebastien Cossin's FIDE rating?

Sebastien Cossin's FIDE rating is 2502 standard. Chess Stalker tracks it together with Sebastien Cossin's over-the-board games and opening repertoire.

How many OTB games has Sebastien Cossin played?

The Chess Stalker database holds 411 over-the-board games by Sebastien Cossin (410 classical, 1 rapid), with 45% wins. The full list, with openings and results, is on Sebastien Cossin's Chess Stalker profile.

How do I prepare against Sebastien Cossin?

Open Sebastien Cossin's free Chess Stalker report: opening repertoire with results per line as White and Black, recurring weaknesses and blunder patterns evaluated with Stockfish, and recent games. Then rehearse against the Twin Bot, which imitates Sebastien Cossin's style, before facing them.

Sebastien Cossin

Franceborn 1986FIDE ID 618802

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026

2460

2500

2495 · Sep 2023

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Sep 2023Oct 2026

2502Classical

2516peak, Jul 2013

411games

185wins, 45%

125draws, 30%

101losses, 25%

Rated gamesInactive · rating frozenOfficial FIDE lists · drag the range below the chartPeak 2516 · Jul 2013

Play style

before facing themWhat you need to know before facing them

Elite accuracy: 92.2% average

Very consistent (90%)

Very precise: only 0.1 blunders/game

Dominates 1.c4 as

(67% in 70 games)

Play against Cossin's Twin

Their real openings, level & style

Practice against a bot that uses their real openings and playing style

Based on

411 games

Based on 411 games

Openings

411 gamesBased on 411 player games

Weaknesses

where they slip as ♔ White

No significant weaknesses detected as white

Strengths

what holds up for them as ♔ White

King's Indian1.d4 ♞f6 2.c4 g624 games, last played last year58.3%wins

Deep analysis

Stockfish · Classical · 11 analyzedStockfish · Classical games · 11 analyzed

Accuracy by phase

Opening

96.1%

Middlegame

93.4%

Endgame

95.2%

Clutch factor

+7%

Winning (+2)Winning (+2)

96%4g

EqualEqual position

94%2g

Losing (−2)Losing (−2)

89%5g

Accuracy under pressure barely drops when losing.

Problematic pieces

40%

4 err

30%

3 err

20%

2 err

10%

1 err

0 err

Critical moment

Move 36 avg

1-15

16-25

26-35

100%

36-45

46+

100% of blunders occur after move 36-45. Keep tension until then.of blunders occur after move 36-45. Keep tension until then.

Error heatmap · Critical squaresError heatmap

Few

Many

10Errors mapped

g5 / b3Hotspot zone

Critical squares

22 err

11 err

g5/b3 concentrate most errors. Force decisions in those zones.

Critical blunders

4 errors · Stockfish

#36

♜c3?? vs Hamitevici

Middlegame · OTB · 2019

#34

♛c7+?? vs Bauer

Middlegame · OTB · 2019

#27

♞b3?? vs Heimann

Middlegame · OTB · 2019

#65

♜e2?? vs Caruana

Endgame · OTB · 2009

Recent games

411 games

Utrera, Ludovic(2118)

Ronde 3: Cossin, Sebastien - Utr... · 1 Jun 2025

1–0

Karthikeyan, Murali(2596)

French Team Championship Top 12 ... · 27 May 2019

1–0

Kosten, Anthony C.(2419)

French Team Championship Top 12 ... · 26 May 2019

1–0

Balogh, Csaba(2598)

French Team Championship Top 12 ... · 25 May 2019

0–1

Hamitevici, Vladimir(2476)

French Team Championship Top 12 ... · 24 May 2019

0–1

Miezis, Normunds(2456)

French Team Championship Top 12 ... · 22 May 2019

½–½

Endgame statistics

9 endgames (81.8%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

81.8%

9 / 11

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

56%44%

77.9%353g

R+Bishop vs R+Knight

59%41%

79.4%306g

Rook vs Minor (Exchange)

49%50%

73.7%281g

Rook vs Rook

48%50%

72.6%252g

Rook vs Two Minors

56%44%

78.1%160g

Pure Pawn

36%50%14

60.6%109g

Rook + Equal Minors77.9%353g

R+Bishop vs R+Knight79.4%306g

Rook vs Minor (Exchange)73.7%281g

Rook vs Rook72.6%252g

Rook vs Two Minors78.1%160g

Pure Pawn60.6%109g

Weak in : only 0% win rate (0 games). Force this endgameShow all 14 types

Unlock Endgame Statistics

All their endgames: discover where they collapse under pressure

Repertoire

PROTime controls · Years · Events

411 games in scope

Explore the repertoireevery move played, ranked by frequency

211 games49%W31%D20%L

211games in this linewon 49%, drew 31%, lost 20%

Move

1. d4

1141y

46%35%19%

64%

1. c4

707y

54%26%20%

67%

1. ♞f3

167y

44%31%25%

59%

1. e4

1115y

55%27%18%

68%

Scouting report: Sebastien Cossin (IM, FRA)

Sebastien Cossin

Rating & statistics

Play style

Play against Cossin's Twin

Openings

Weaknesses

Strengths

Deep analysis

Critical blunders

Recent games

Endgame statistics

Repertoire