KNSB FIDE
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Albert Dekker

Rated since January 2023

1857 Classic
1848 Rapid
1835 Blitz

RIVALRY

Nemesis
Griend van de, J. (Johan)
Games: 3 · Win rate: 67%

The good & the bad

Best wins
HOOMANS, P. (PETER) 1934
11639 De Volewijckers Weekendvierkamp 2025 Groep 3 · Saturday 5 July 2025
BURGERS, V. (VICTOR) 1930
12211 Amsterdam Chess Open Groep B1 · Sunday 26 October 2025
GRIESSNIG, THOMAS 1929
34. Int. Open Feffernitz 2025 A-Gruppe · Monday 18 August 2025
SMIT, S.J.M. (SIMON) 1925
12385 NHSB-competitie 2025-2026 Klasse 2A t/m 23-11-2025 · Tuesday 18 November 2025
WILLEMSEN, L.G.J. (LOURENS) 1921
10470 Tata Steel Chess Tournament 2026 Tienkampen · Friday 23 January 2026
Worst losses
AARTEN, M.M. (MARJOLEIN) 1617
13504 TAPIJTGIGANT OPEN ASK 2026 Groep C · Saturday 4 April 2026
MIDEM, ALI CANEL 1643
14013 HSG Open 2026 Groep C · Sunday 21 June 2026
MOHANADHASAN, THEISIYAN 1709
13504 TAPIJTGIGANT OPEN ASK 2026 Groep C · Sunday 5 April 2026
METZ, B. (BERCIS) 1742
12731 Haarlem Open Groep A · Tuesday 7 April 2026
LOOIJER, C. (CHERYL) 1746
12265 KNSB competitie 2025-2026 Klasse 5 ronde 2 · Saturday 1 November 2025
Open NK Schaken 2026 Reserve B Tuesday 21 July 2026 +6–2=1 +16.4
Amsterdam Chess Festival Dagvierkampen 2026 Groep A Monday 13 July 2026 +0–1=2 -12.9
HWP Inholland Weekendtoernooi Groep B Saturday 27 June 2026 +1–1=2 +10.1
HSG Open 2026 Groep C Friday 19 June 2026 +4–1=0 +15.9
18de BPB Limburg Open 2026 Veteranengroep Friday 22 May 2026 +3–2=2 +26.8
51e Open Kampioenschap van Utrecht Groep C Friday 15 May 2026 +2–2=2 -13.5
TAPIJTGIGANT OPEN ASK 2026 Groep C Saturday 4 April 2026 +3–3=0 -22.3
85e Daniel Noteboomtoernooi Groep B Friday 20 February 2026 +1–2=3 -5.8
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +3–4=1 -16.1
Chessfestival Groningen Open B Sunday 21 December 2025 +2–6=0 -40.3
Amsterdam Chess Open Groep B1 Friday 24 October 2025 +1–3=2 -13.6
NHSB Herfstveteranen schaaktoernooi 2025 Groep A ronde 7 en 8 Wednesday 15 October 2025 +1–1=0 -0.7
NHSB Herfstveteranen schaaktoernooi 2025 Groep A Wednesday 15 October 2025 +2–1=2 +10.1
Open NK Schaken 2025 Zesrondig 1 Tuesday 22 July 2025 +1–2=3 -4.5
UniClass Science Park Amsterdam Schaaktoernooi Dagvierkampen Saturday 5 July 2025 +0–1=2 -10.3
UniClass Science Park Amsterdam Schaaktoernooi Weekendvierkampen Saturday 5 July 2025 +1–2=0 -14.6
17e BPB Limburg Open 2025 Veteranen Friday 6 June 2025 +2–1=4 +15.1
50e Open Kampioenschap van Utrecht Groep B Friday 30 May 2025 +3–0=3 +32.2
Amsterdam Chess Festival Weekendvierkampen 2026 Groep A Friday 17 July 2026 +0–0=3 +0.1
Het Volewijckers weekend-vierkamp Group e Friday 3 July 2026 +0–3=0 -36.5
52e VIERKAMPTOERNOOI S.C. DE UIL HILLEGOM Groep 7 Friday 5 June 2026 +2–0=1 +25.4
16e Karel Kuip Vierkampen 2026 Groep A Friday 17 April 2026 +2–0=1 +21.8
Haarlem Open Groep A Friday 6 March 2026 +2–1=0 -2.7
Haarlem Open Groep A Friday 6 March 2026 +2–1=0 -4.8
NHSB Lenteveteranentoernooi 2026 Groep A 2026 Wednesday 4 March 2026 +2–3=1 -8.5
13e Best of the West Groep A, ronde 7 Saturday 18 October 2025 +0–1=0 -8.9
13e Best of the West Groep A, Ronde 6 Saturday 18 October 2025 +0–0=1 +4.5
13e Best of the West Groep A, ronde 4 Saturday 18 October 2025 +1–0=0 +8.0
13e Best of the West Groep A, ronde 2 Saturday 18 October 2025 +1–0=0 +7.9
13e Best of the West Groep A, ronde 1 Saturday 18 October 2025 +0–1=0 -17.0
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +1–0=0 +6.9
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +0–1=0 -8.8
KNSB competitie 2025-2026 Klasse 5 ronde 6 Saturday 20 September 2025 +0–1=0 -12.7
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +1–0=0 +11.0
KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +0–0=1 -0.9
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–1=0 -16.8
KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +0–1=0 -13.1
KC Open Groep A Friday 5 September 2025 +4–2=0 +6.9
NHSB-competitie 2025-2026 Klasse 2A t/m 12-04-2026 Monday 1 September 2025 +0–1=0 -6.7
NHSB-competitie 2025-2026 Klasse 2A t/m 08-03-2026 Monday 1 September 2025 +1–0=0 +11.7
NHSB-competitie 2025-2026 Klasse 2A t/m 08-02-2026 Monday 1 September 2025 +1–0=0 +14.3
NHSB-competitie 2025-2026 Klasse 2A t/m 14-12-2025 Monday 1 September 2025 +0–0=1 +0.2
NHSB-competitie 2025-2026 Klasse 2A t/m 23-11-2025 Monday 1 September 2025 +1–0=0 +14.3
NHSB-competitie 2025-2026 Zilver t/m 16-11-2025 Monday 1 September 2025 +0–0=1 +2.6
NHSB-competitie 2025-2026 Klasse 2A t/m 09-11-2025 Monday 1 September 2025 +0–1=0 -5.0
NHSB-competitie 2025-2026 Klasse 2A t/m 05-10-2025 Monday 1 September 2025 +1–0=0 +9.9
34. Int. Open Feffernitz 2025 A-Gruppe Saturday 16 August 2025 +3–4=2 -0.9
De Volewijckers Weekendvierkamp 2025 Groep 3 Friday 4 July 2025 +1–0=1 +13.1
51e VIERKAMPTOERNOOI S.C. DE UIL HILLEGOM Groep 5 Friday 13 June 2025 +1–0=2 +13.7
15e Karel Kuip Vierkampen Groep A Friday 23 May 2025 +1–2=0 -9.0

Team Competition

Current team
Bergen 1
Klasse 5H · 2025-2026 · 7 games
Past teams
Bergen 1
Klasse 5G · 2024-2025
Bergen 1
Klasse 4C · 2023-2024
Bergen 1
Klasse 4D · 2022-2023
Bergen 1
Klasse 4E · 2021-2022

Rating History

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Peak Ratings

Classic 1917 July 1, 2025
Rapid 1848 May 1, 2026
Blitz 1835 March 1, 2026

Games

Wins 64
Losses 59
Draws 44
Win Rate 38%

Performance by Color

Color Wins Draws Losses Win Rate
White 32 25 30 37%
Black 32 19 29 40%

Recent Matches

Felgendreher, Luke (1710) Wednesday 29 July 2026 WIN +6.6
Jaarsveld van, J. (Jitse) (1758) Tuesday 28 July 2026 LOSS -17.0
Uittenbogaard, C.J. (Hans) (1870) Monday 27 July 2026 DRAW -0.7
Landsheer, J. (Jeroen) (1861) Sunday 26 July 2026 WIN +11.5
Hausrath, Frederick Noah (1719) Saturday 25 July 2026 WIN +6.9
Mulder, D. (Daniel) (1772) Friday 24 July 2026 WIN +8.5
Beerdsen, M.H. (Marco) (1750) Thursday 23 July 2026 WIN +7.8
Grunnekemeijer, A.J. (Axel) (1809) Wednesday 22 July 2026 LOSS -15.3
Teunisse, R.J. (Rob) (1760) Tuesday 21 July 2026 WIN +8.1
Steur, E.T.M. (Erik) (1902) Sunday 19 July 2026 DRAW +0.4
Leek van der, W.M. (Mark) (1880) Saturday 18 July 2026 DRAW -0.4
Ramdien, R.S. (Ryan) (1892) Friday 17 July 2026 DRAW +0.1
Zwet van, A.M. (Matthias) (1878) Wednesday 15 July 2026 DRAW -0.4
Jonkers, B.S. (Bas) (1899) Tuesday 14 July 2026 DRAW +0.3
Knight, D.R. (David) (1883) Monday 13 July 2026 LOSS -12.7
Steur, E.T.M. (Erik) (1902) Saturday 4 July 2026 LOSS -12.1
Jong, C. (Casijn) (1893) Saturday 4 July 2026 LOSS -12.4
Zhang, J. (Jinchen) (1903) Friday 3 July 2026 LOSS -12.1
Teo, K.T. (Kir) (1839) Sunday 28 June 2026 DRAW +0.6
Aravindhan, A. (Aadvik) (1609) Sunday 28 June 2026 WIN +5.7