KNSB FIDE
SS

Sam Sosef

Rated since June 2025

1755 Classic
1775 Rapid
1775 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
LEEUW DE, G. (GERARD) 1568
13364 Open Kampioenschap Wassenaar OKW 25/26 Ronde 6 · Monday 23 March 2026
LIM, D. (DANNY) 1552
12856 Open Kampioenschap Wassenaar OKW 25/26 Ronde 4 · Monday 19 January 2026
Worst losses
ENGELEN, N.D.S. (NIELS) 1698
12633 Open Kampioenschap Wassenaar OKW 25/26 Ronde 3 · Monday 15 December 2025
HOOSHANGI, M. (MILAN) 1744
13316 KNSB competitie 2025-2026 Klasse 6 ronde 5 · Saturday 28 March 2026
LAVERMAN, D.S. (DALIBOR) 1812
13544 Open Kampioenschap Wassenaar OKW 25/26 Ronde 7 · Monday 13 April 2026
BOLLE, L. (LEO) 1885
11995 KNSB competitie 2025-2026 Klasse 6 ronde 1 · Saturday 4 October 2025
No FIDE-rated tournaments found.
Open Kampioenschap Wassenaar OKW 25/26 Ronde 7 Monday 20 October 2025 +0–1=0 -19.8
Open Kampioenschap Wassenaar OKW 25/26 Ronde 6 Monday 20 October 2025 +1–0=0 +10.7
Open Kampioenschap Wassenaar OKW 25/26 Ronde 5 Monday 20 October 2025 +0–1=0
Open Kampioenschap Wassenaar OKW 25/26 Ronde 4 Monday 20 October 2025 +1–0=0 +10.7
Open Kampioenschap Wassenaar OKW 25/26 Ronde 3 Monday 20 October 2025 +0–1=0 -31.0
Open Kampioenschap Wassenaar OKW 25/26 Ronde 2 Monday 20 October 2025 +0–0=1
KNSB competitie 2025-2026 Klasse 6 ronde 5 Saturday 20 September 2025 +0–1=0 -12.6
KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +0–0=1 +7.2
KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +0–1=0 -20.2

Team Competition

Current team
Voorschoten 4
Klasse 6I · 2025-2026 · 3 games
Past teams
Voorschoten 4
Klasse 6H · 2024-2025

Rating History

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Peak Ratings

Classic 1882 June 1, 2025
Rapid 1777 March 1, 2026
Blitz 1777 March 1, 2026

Games

Wins 2
Losses 5
Draws 2
Win Rate 22%

Performance by Color

Color Wins Draws Losses Win Rate
White 1 1 2 25%
Black 1 1 3 20%

Recent Matches

Laverman, D.S. (Dalibor) (1812) Monday 13 April 2026 LOSS -19.8
Hooshangi, M. (Milan) (1744) Saturday 28 March 2026 LOSS -12.6
Leeuw de, G. (Gerard) (1568) Monday 23 March 2026 WIN +10.7
Gresset-Boisson, R. (Romain) Monday 23 February 2026 LOSS
Lim, D. (Danny) (1552) Monday 19 January 2026 WIN +10.7
Engelen, N.D.S. (Niels) (1698) Monday 15 December 2025 LOSS -31.0
Dongen van, R. (Rob) (1897) Saturday 13 December 2025 DRAW +7.2
Okker, P. (Peter) Monday 24 November 2025 DRAW
Bolle, L. (Leo) (1885) Saturday 4 October 2025 LOSS -20.2