KNSB FIDE
PB

Peter Bosker

Rated since January 2023

2066 Classic

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
VALENS, V. (VINCENT) 2196
9435 KNSB competitie 2024-2025 Klasse 3 ronde 1 · Saturday 21 September 2024
DIJKSTRA, A.S. (ARJAN) (FM) 2169
7818 Chess Festival Groningen Compact A · Thursday 28 December 2023
CROESE, C. (COR) 2160
12261 KNSB competitie 2025-2026 Klasse 1 ronde 3 · Saturday 1 November 2025
RIKSTEN, P.H. (PETER) 2151
7797 KNSB competitie 2023-2024 Klasse 3 ronde 3 · Saturday 4 November 2023
BOERSMA, J. (JAN) 2138
8456 Chess Festival Groningen Compact · Monday 30 December 2024
Worst losses
NOLLES, D.S. (DIRK SIEDS) 1794
6555 KNSB competitie 2022-2023 Klasse 3 ronde 6 · Saturday 11 February 2023
ZUIDERWEG, E. (EDWIN) 1914
7818 Chess Festival Groningen Compact A · Saturday 30 December 2023
VELD VAN 'T, M. (MENNO) 1963
11233 Chessfestival Groningen Compact Groep A · Monday 29 December 2025
ZOETEN DE, C. (CATO) 1966
8456 Chess Festival Groningen Compact · Sunday 29 December 2024
VRIES DE, B.J. (BRAM) 2014
11849 KNSB competitie 2025-2026 Klasse 1 ronde 1 · Saturday 20 September 2025
Chessfestival Groningen Compact Groep A Friday 26 December 2025 +1–2=1 -23.6
Chess Festival Groningen Compact Saturday 21 December 2024 +3–1=1 +14.1
Chess Festival Groningen Compact A Thursday 21 December 2023 +2–2=0 -2.1
KNSB competitie 2025-2026 Klasse 1 ronde 6 Saturday 20 September 2025 +0–0=1 +4.1
KNSB competitie 2025-2026 Klasse 1 ronde 8 Saturday 20 September 2025 +0–1=0 -6.4
KNSB competitie 2025-2026 Klasse 1 ronde 7 Saturday 20 September 2025 +0–0=1 +7.4
KNSB competitie 2025-2026 Klasse 1 ronde 5 Saturday 20 September 2025 +0–1=0 -6.4
KNSB competitie 2025-2026 Klasse 1 Ronde 4 Saturday 20 September 2025 +1–0=0 +6.9
KNSB competitie 2025-2026 Klasse 1 ronde 3 Saturday 20 September 2025 +1–0=0 +15.7
KNSB competitie 2025-2026 Klasse 1 ronde 1 Saturday 20 September 2025 +0–1=0 -14.9
KNSB competitie 2024-2025 Klasse 3 ronde 9 Saturday 21 September 2024 +0–1=0 -12.2
KNSB competitie 2024-2025 Klasse 3 ronde 8 Saturday 21 September 2024 +0–0=1 +0.8
KNSB competitie 2024-2025 Klasse 3 ronde 6 Saturday 21 September 2024 +1–0=0 +9.8
KNSB competitie 2024-2025 Klasse 3 ronde 5 Saturday 21 September 2024 +0–0=1 +4.5
KNSB competitie 2024-2025 Klasse 3 ronde 3 + inhaalwedstrijd ronde 1 Saturday 21 September 2024 +1–0=0 +10.5
KNSB competitie 2024-2025 Klasse 3 ronde 2 Saturday 21 September 2024 +0–1=0 -7.2
KNSB competitie 2024-2025 Klasse 3 ronde 1 Saturday 21 September 2024 +1–0=0 +17.6
KNSB competitie 2023-2024 Klasse 3 ronde 9 Saturday 16 September 2023 +0–1=0 -7.7
KNSB competitie 2023-2024 Klasse 3 ronde 8 Saturday 16 September 2023 +0–0=1 +2.3
KNSB competitie 2023-2024 Klasse 3 ronde 7 Saturday 16 September 2023 +1–0=0 +10.7
KNSB competitie 2023-2024 Klasse 3 ronde 6 Saturday 16 September 2023 +0–0=1 -2.6
KNSB competitie 2023-2024 Klasse 3 ronde 5 Saturday 16 September 2023 +0–1=0 -7.6
KNSB competitie 2023-2024 Klasse 3 ronde 4 Saturday 16 September 2023 +0–0=1 -0.5
KNSB competitie 2023-2024 Klasse 3 ronde 3 Saturday 16 September 2023 +1–0=0 +16.4
KNSB competitie 2023-2024 Klasse 3 ronde 2 Saturday 16 September 2023 +1–0=0 +13.6
KNSB competitie 2023-2024 Klasse 3 ronde 1 Saturday 16 September 2023 +0–0=1 -1.3
KNSB competitie 2022-2023 Klasse 3 ronde 9 Saturday 17 September 2022 +1–0=0 +9.7
KNSB competitie 2022-2023 Klasse 3 ronde 8 Saturday 17 September 2022 +1–0=0 +9.8
KNSB competitie 2022-2023 Klasse 3 ronde 7 Saturday 17 September 2022 +0–0=1 -1.8
KNSB competitie 2022-2023 Klasse 3 ronde 6 Saturday 17 September 2022 +0–1=0 -19.8
KNSB competitie 2022-2023 Klasse 3 ronde 5 Saturday 17 September 2022 +1–0=0 +16.6
KNSB competitie 2022-2023 Klasse 3 ronde 4 Saturday 17 September 2022 +1–0=0 +10.3

Team Competition

Current team
Groninger Combinatie 2
Klasse 1A · 2025-2026 · 7 games
Past teams
Groninger Combinatie 3
Klasse 3A · 2024-2025
Groninger Combinatie 3
Klasse 3A · 2023-2024
Groninger Combinatie 3
Klasse 3A · 2022-2023
Groninger Combinatie 3
Klasse 3A · 2021-2022

Rating History

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Peak Ratings

Classic 2095 May 1, 2025
Rapid 2068 March 1, 2026
Blitz 2068 March 1, 2026

Games

Wins 18
Losses 13
Draws 11
Win Rate 43%

Performance by Color

Color Wins Draws Losses Win Rate
White 13 7 5 52%
Black 5 4 8 29%

Recent Matches

CM Moll, A. (Arne) (2188) Saturday 28 March 2026 DRAW +4.1
FM Rademakers, E.L. (Evert) (2255) Saturday 7 March 2026 LOSS -6.4
Berg van den, H.T.W. (Hilke) (2296) Saturday 7 February 2026 DRAW +7.4
Veld van 't, M. (Menno) (1963) Monday 29 December 2025 LOSS -16.8
Luimes, A.J. (Arent) (1938) Sunday 28 December 2025 DRAW -5.1
CM Dam ten, B. (Bram) (2192) Saturday 27 December 2025 LOSS -9.1
Verheij, D. (Dana) (1938) Friday 26 December 2025 WIN +7.4
FM Gisbergen van, S. (Stan) (2278) Saturday 13 December 2025 LOSS -6.4
Brandsma, R.L. (Romayn) (1899) Saturday 22 November 2025 WIN +6.9
Croese, C. (Cor) (2160) Saturday 1 November 2025 WIN +15.7
Vries de, B.J. (Bram) (2014) Saturday 20 September 2025 LOSS -14.9
Lith van, A. (Arjan) (2105) Saturday 10 May 2025 LOSS -12.2
Dries op den, J. (Johan) (2118) Saturday 5 April 2025 DRAW +0.8
Scheffner, J. (Jarno) (2005) Saturday 8 February 2025 WIN +9.8
Boersma, J. (Jan) (2138) Monday 30 December 2024 WIN +15.0
Zoeten de, C. (Cato) (1966) Sunday 29 December 2024 LOSS -15.9
Willemsma, A.D.I. (Abe) (1981) Saturday 28 December 2024 WIN +9.6
Gruettner, Ralf (2002) Friday 27 December 2024 WIN +10.3
Beltman, J.B. (Joost) (1923) Thursday 26 December 2024 DRAW -4.8
Ros, S. (Sikko) (2198) Saturday 14 December 2024 DRAW +4.5