Player profile

Demanghon, Jonathan

Standard: 2163 Rapid: 2142 Blitz: 2112 (last updated 2026-11-02)

FIDE ID: 623873 (view FIDE profile)

Federation: FRA Sex: M Birth Year: 1979 Age: 47

Title: — Women's title: — Other title: — FOA title: —

Games: 7 Wins: 3 (43%) Draws: 1 (14%) Losses: 3 (43%)

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Dossier

7 of 7 games analyzed.

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Openings

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As White 4 games 3W 0D 1L

East Indian Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Dutch Defense 1 game 1W 0D 0L

Raphael Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Indian Defense 1 game 1W 0D 0L

Anti-Grünfeld 1 game 1W 0D 0L

Alekhine Variation 1 game 1W 0D 0L

Zukertort Opening 1 game 1W 0D 0L

Quiet System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 3 games 0W 1D 2L

Queen's Gambit Declined 1 game 0W 1D 0L

Three Knights Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

French Defense 1 game 0W 0D 1L

McCutcheon Variation 1 game 0W 0D 1L

Lasker Variation 1 game 0W 0D 1L

Queen's Pawn Game 1 game 0W 0D 1L

London System 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 27

This player's costliest moves in analyzed games. Can you find the winning move?

2026.10.20 · 24. Be3 (−78.3% win chance) 1-0

Nottola, Adrien

Demanghon, Jonathan

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2026.10.21 · 10. c4 (−43.8% win chance) 0-1

Brendan DURAND LE LUDEC

Demanghon, Jonathan

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2026.10.20 · 25... Nb6 (−34.3% win chance) 1/2-1/2

Demanghon, Jonathan

Martineau, Arthur

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2026.10.20 · 40. Qa4 (−25.6% win chance) 1-0

Valentint NICOT

Demanghon, Jonathan

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Games Showing all 7 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.10.21	Round 7: Demanghon, Jonathan - Brendan DURAND LE LUDEC	7.2	2026.10.21 Brendan DURAND LE LUDEC	0	54.40%	1. d4 Nf6 2. Nf3 g6 3. e3 Bg7
2026.10.20	Round 6: Demanghon, Jonathan - Eugene, Nathael	6.4	2026.10.20 Eugene, Nathael (45115907) (2271)	1	92.40%	1. d4 f5 2. Nc3 Nf6 3. Bg5 d5
2026.10.20	Round 5: Martineau, Arthur - Demanghon, Jonathan	5.4	2026.10.20 Martineau, Arthur (684414) (1986)	½	79.00%	1. d4 e6 2. Nf3 Nf6 3. c4 d5
2026.10.20	Round 4: Demanghon, Jonathan - Nottola, Adrien	4.4	2026.10.20 Nottola, Adrien (45110654) (2328)	1	53.70%	1. d4 Nf6 2. c4 g6 3. f3 Bg7
2026.10.20	Round 3: Loiseau, Quentin - Demanghon, Jonathan	3.2	2026.10.20 Loiseau, Quentin (665274) (2361)	0	83.60%	1. e4 e6 2. d4 d5 3. Nc3 Nf6
2026.10.20	Round 1: Demanghon, Jonathan - Valentint NICOT	1.3	2026.10.20 Valentint NICOT	1	91.10%	1. Nf3 Nf6 2. e3 g6 3. d4 Bg7
2025.10.21	Round 5: Muthaiah AL - Demanghon, Jonathan	5.3	2025.10.21 Muthaiah AL (5092442) (2446)	0	85.00%	1. d4 d5 2. Bf4 Nf6 3. e3 c5