Dutch Open Championship 2005


Sunday October 16, 2005


Eindhoven, The Netherlands


Kruisstraat 74
5612 CJ Eindhoven


Online registration form


09:30 - 16:45 (Venue open around 9:00am.)

Latest news

  • October 12: Registration is now closed for everyone!
  • October 12: We currently have 41 registered competitors from: Netherlands, Belgium, Germany, France, United Kingdom, USA, Australia, Czech Republic and Norway.
  • October 1: Time schedule added.
  • September 8: Start of the competition will be at 9:30am. End of the winner's ceremony is planned at 4:45pm.
  • July 30: Added the Master Magic event.
  • July 23: Added the Square-1 event.


The Dutch Open 2005 will be organised by Speedcubing.com together with World Cube Association and volunteers.
During the championship the official WCA regulations will be applied.

The championship will be held during Dutch Cube Day 2005, a big international gathering of puzzle fans, which includes a puzzle market and some lectures. Pictures of previous editions can be found via the Events page.

If you have any questions, feel free to contact organiser Ron van Bruchem.


We cannot have preliminary rounds on Saturday night, like we used to do for previous championships. The reason is that there will be a German Championship on Saturday in Essen.
We also want to have some spare time during the cube day, to be able to walk around, talk and buy/sell/trade puzzles.
Therefore we need to focus on the popular events.

Provisional time schedule

EventRoundTime limit
Format#CompetitorsStart time
Registration    9:00 AM
Rubik's Clockfinal2mean of 3199:30 AM
Rubik's 3x3x3 Cubefirst round5average of 53910:00 AM
Rubik's 5x5x5 Cubefinal9best of 1
best 8 after 1:
mean of 3
1511:45 AM
Lunch    12:30 PM
Square-1final4best of 1
best 6 after 1:
mean of 3
111:00 PM
Rubik's Magicfinal1average of 5241:30 PM
Rubik's 4x4x4 Cubefinal6best of 1
best 8 after 1:
mean of 3
221:45 PM
Rubik's MasterMagicfinal1average of 582:45 PM
Rubik's 3x3x3 Cube
final20 for 2 solvesbest of 2153:00 PM
Rubik's 3x3x3 Cubefinal4average 5123:45 PM
Winner's Ceremony    4:20 PM
  • Thomas Kohn will do a world record attempt for number of 3x3x3 cubes solved blindfolded.
  • Geir Ugelstad will do a world record attempt for 3x3x3 speed blindfolded.
  • In the events with a combined 'best of' and 'mean of 3' round, all competitors have one attempt. Immediately after that, the best competitors have two more attempts, to make a mean of 3.
  • One puzzle defect is allowed in all rounds (except 3x3x3 blindfolded). This attempt can be changed for an extra attempt, according to the regulations of WCA.


There will be some trophies to be divided among the category winners.


The following competitors registered for Dutch Open 2005.
More competitors will only be allowed in special cases (courtesy of Ron), or for people already registered for Dutch Cube Day 2005.
1Ron van BruchemNetherlands11111 110
2Bob BurtonUSA111111110
3Patrick BellenbaumGermany11      0
4Thomas KohnGermany11      1
5Koen HeltzelNetherlands1 1111110
6Joël HeymbeeckBelgium1   1 111
7Gilles van den PeereboomBelgium1 111 1 0
8Jasmine LeeAustralia1   1 1 0
9Olivier GaucherFrance111111110
10Loïc CharpentierFrance11111 110
11Alexander OomsNetherlands1 1 111 2
12Maureen OomsNetherlands1   1 1 2
13Stefan PochmannGermany111111110
14Joël van NoortNetherlands111    10
15Arjan BosseNetherlands1 11  1 0
16Jaap ScherphuisNetherlands1   11  0
17Ruben GeelsNetherlands11      0
18Ton DennenbroekNetherlands1 1 1 1 0
19Hans van der ZijdenNetherlands11      0
20Guus Razoux-SchultzNetherlands1 1 1   0
21Maarten StoelhorstNetherlands1 1     2
22Sander HendrickxBelgium1   1 1 0
23Jean PonsFrance111    10
24Dan HarrisUnited Kingdom1 111 1 1
25Frédérick BadieFrance1111    0
26Olivier MaryBelgium1 111 1 0
27Lars VandenberghBelgium11111 110
28Olivier MesadoFrance11      0
29Peter JansenNetherlands1 111   0
30Stefan BayensNetherlands1   1   0
31Sean ConnollyUnited Kingdom1 11111 0
32Geir UgelstadNorway1       0
33Stijn van GilsBelgium1       0
34Sébastien FelixFrance1 1     0
35Peter StillAustralia    1   0
36Josef JelinekCzech Republic1 111 110
37Petra UhlirovaCzech Republic1   1   0
38Augustijn RavijtsBelgium1       0
39Maria RivilisGermany1   1 1 0
40Thomas BoßmannGermany1       0
41Reiner ThomsenGermany11      0

Other events

10:00 - 17:00 Puzzle market of Dutch Cube Day.
13:30 - 14:00 Lecture "An ultimate definition of a Jigsaw Puzzle", by Geert Bekkering.
14:00 - 14:30 Lecture "Puzzles in public", by Joop van der Vaart.


Competitors coming from abroad can contact Ron. We may help you find a cheap place to stay.
We recommend you to stay at the Eindhoven Holiday Inn hotel on Saturday night. This hotel is next to Eindhoven train station and close to the venue.
We expect that many cubers will stay at that hotel. And there is a lobby where we can meet on Saturday night.
This hotel has a room rate of 44 euros per room per night. With two persons in one room, that is only 22 euros, not including tax and breakfast.
Check out the hotel website for information and bookings.
If you want to share a room with someone else, then please send an e-mail to Ron.

Other information

Entrance fee for Dutch Cube Day is 10 euro for NKC members, and 15 euro for guests. This includes coffee/tea/cake, refreshments and lunch.

All competitors must be registered before October 1, 2005.

Before the competition starts all competitors can practice on the official timing equipment: the Stackmat timer.
All puzzle brands may be used during the competition, as long as the puzzles comply to the WCA regulations.
Results of the championship will be added to the official WCA World Ranking.