Challenge checker: Top25 to move challenge

Question

Hi,

Is there a checker for the challenge top25 to move challenge (drenthe, friesland etc)

http://coord.info/GC1T978

http://coord.info/GC2PMY5

http://coord.info/GC1GBRQ

http://coord.info/GC25FD4

http://coord.info/GC1Z97V

And more.....

Comments

lillfiluren could create one with his poly-checker if I understand them correctly. Since we don't read the language. Are there any special rules, or is it just one find per polygon/page/square?

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There are a checker called "GenericPolyChecker" by  lillfiluren like
http://project-gc.com/Challenges/GC2M3D4/1320
The problem is to get the polygondata. It has to be in the checker sourcecode because of the size. If you have the data och now were it exist contact lillfiluren and he can probibly help you

---

Indeed, at least 1 found per polygon/page/square, in that province

---

I checked the first one, a gsak-macro was linked, and the polygon data was inside. I have sent an instant message to lillfiluren actually. But I know he is a busy man. Everyone wants a share of his time. :)

---

Ok thanks
It would be very nice when this checker is working, not everyone has GSAK and PGC is much easier;-)

---

The problem with that GSAK macro is that it's not entirely accurate. It stores the "lines" of the square and not the corners. It therefore doesn't take the curve of the Earth into account. If you plot the squares used by that macro on a map you'll see the segements dont't fit nicely together.

I have the original digital TOP25 maps at home, which contain a list of the official coordinates. If I can find it again I'll post those here somewhere. Could be a few days though, as I'm not at home at the moment.

Answer 1

Here is the list of all squares in the Netherlands. Hope someone can make a checker, or plot the coordinates on a map with the found caches on it... (unfortunatly I'm not good with the coding :-( )

5.98993,5.59761,53.49847,53.38616,01H_Ameland

6.3673,5.98835,53.52859,53.38484,02G_Schiermonnikoog

6.64103,6.36659,53.60697,53.49467,03A_Rottumeroog
6.51723,6.36403,53.49467,53.38238,03C_Pieterburen
6.66787,6.51428,53.49336,53.38106,03D_Usquert
6.95404,6.66452,53.49185,53.37956,03G_Uithuizen
5.16212,4.83201,53.31874,53.20536,04F_Vlieland
5.58291,5.14634,53.45806,53.34118,05A_Terschelling
5.76293,5.52212,53.38627,53.27395,05F_SintAnnaparochie
5.61206,5.32725,53.27401,53.16169,05G_Franeker
5.76195,5.61147,53.27382,53.1615,05H_Dronrijp
5.91321,5.76195,53.38576,53.27344,06A_Ferwerd
6.06349,5.91184,53.38519,53.27288,06B_Dokkum
5.91184,5.76098,53.27344,53.16113,06C_Leeuwarden
6.06173,5.91048,53.27288,53.16057,06D_Bergum
6.21376,6.06173,53.38444,53.27213,06E_Kollum
6.36403,6.21161,53.3835,53.2712,06F_Zoutkamp
6.21161,6.05998,53.27213,53.15982,06G_Surhuisterveen
6.36148,6.20947,53.2712,53.15889,06H_Grootegast
6.51428,6.36148,53.38238,53.27008,07A_Einge
6.66452,6.51135,53.38106,53.26877,07B_Bedum
6.51135,6.35896,53.27008,53.15777,07C_Hoogkerk
6.6612,6.50843,53.26877,53.15646,07D_Groningen
6.81475,6.6612,53.37956,53.26727,07E_Loppersum
6.96497,6.81104,53.37787,53.26559,07F_Delfzijl
6.81104,6.65789,53.26727,53.15497,07G_Hoogezand
6.96086,6.80734,53.26559,53.1533,07H_Noordbroek
7.23738,6.95678,53.3367,53.15143,08C_Nieuweschans
4.9232,4.68373,53.21023,52.97096,09B_Texel
5.29773,5.0144,53.04935,52.93648,09H_Afsluitdijk
5.46196,5.25265,53.16169,53.04931,10B_Makkum
5.61147,5.46177,53.16169,53.04936,10E_Bolsward
5.76098,5.61089,53.1615,53.04918,10F_Mantgum
5.61089,5.37229,53.04939,52.93706,10G_Workum
5.76001,5.61031,53.04918,52.93685,10H_Sneek
5.91048,5.76001,53.16113,53.0488,11A_Grouw
6.05998,5.90913,53.16057,53.04825,11B_NijBeets
5.90913,5.75905,53.0488,52.93648,11C_Joure
6.05824,5.90778,53.04825,52.93592,11D_Heereveen
6.20947,6.05824,53.15982,53.0475,11E_Drachten
6.35896,6.20735,53.15889,53.04657,11F_Marum
6.20735,6.05651,53.0475,52.93518,11G_Gorredijk
6.35644,6.20523,53.04657,52.93426,11H_Oosterwolde
6.50843,6.35644,53.15777,53.04546,12A_Norg
6.65789,6.50553,53.15646,53.04416,12B_Vries
6.50553,6.35395,53.04546,52.93315,12C_Smilde
6.65461,6.50265,53.04416,52.93185,12D_Assen
6.80734,6.65461,53.15497,53.04267,12E_Zuidlaren
6.95678,6.80367,53.1533,53.041,12F_Veendam
6.80367,6.65134,53.04267,52.93037,12G_Gieten
6.95272,6.80002,53.041,52.9287,12H_Stadskanaal
7.22573,6.95272,53.15143,53.03914,13A_Winschoten
7.22097,6.94869,53.03914,52.92685,13C_Musselkanaal
4.86596,4.62769,52.99209,52.82233,14B_DenHelder
4.86797,4.63062,52.8236,52.71,14D_Schagen
5.11948,4.86663,52.93676,52.8236,14E_Wieringerwerf
5.01632,4.86797,52.82415,52.71127,14G_Middenmeer
5.16467,5.01632,52.82452,52.71182,14H_Medemblik
5.46158,5.31284,52.93704,52.82471,15B_Stavoren
5.61031,5.46138,52.93704,52.82471,15E_Balk
5.75905,5.60974,52.93685,52.82452,15F_Lemmer
5.7581,5.56478,52.8246,52.71226,15H_Rutten
5.90778,5.7581,52.93648,52.82415,16A_Echtenerbrug
6.05651,5.90645,52.93592,52.8236,16B_Wolvega
5.90645,5.75715,52.82415,52.71182,16C_Kuinre
6.05479,5.90512,52.8236,52.71127,16D_Blokzijl
6.20523,6.05479,52.93518,52.82286,16E_Noordwolde
6.35395,6.20313,52.93426,52.82194,16F_Diever
6.20313,6.05308,52.82286,52.71053,16G_Steenwijk
6.35146,6.20104,52.82194,52.70961,16H_Havelte
6.50265,6.35146,52.93315,52.82083,17A_Dwingeloo
6.65134,6.49978,52.93185,52.81954,17B_Beilen
6.49978,6.34899,52.82083,52.70851,17C_Hoogeveen
6.6481,6.49694,52.81954,52.70722,17D_Nieuw-Balinge
6.80002,6.6481,52.93037,52.81806,17E_Schoonoord
6.94869,6.79639,52.9287,52.8164,17F_Exloo
6.79639,6.64487,52.81806,52.70575,17G_Oosterhesselen
7.07812,6.79049,52.8164,52.63221,17H_Emmen
7.18652,6.94468,52.92685,52.81455,18A_TerApel
4.72133,4.57337,52.71053,52.59728,19A_Bergen
4.86929,4.72133,52.71127,52.5982,19B_Alkmaar
4.72303,4.57545,52.5982,52.48495,19C_Castricum
4.87062,4.72303,52.59893,52.48587,19D_Wormerveer
5.01727,4.86929,52.71182,52.59893,19E_Obdam
5.16524,5.01727,52.71219,52.59948,19F_Hoorn
5.01821,4.87062,52.59948,52.4866,19G_Purmerend
5.16581,5.01821,52.59985,52.48715,19H_Edam
5.31312,5.16496,52.76854,52.59985,20A_Enkhuizen
5.46119,5.31322,52.71237,52.60003,20B_Houtribdijk
5.75715,5.56432,52.71226,52.59992,20F_Urk
5.6086,5.37244,52.60006,52.48772,20G_Lelystad
5.7562,5.60804,52.59985,52.48751,20H_Dronten
5.90512,5.7562,52.71182,52.59948,21A_Ens
6.05308,5.90379,52.71127,52.59893,21B_Vollenhove
5.90379,5.75526,52.59948,52.48714,21C_Roggebotsluis
6.05138,5.90248,52.59893,52.4866,21D_Kampen
6.20104,6.05138,52.71053,52.5982,21E_Meppel
6.34899,6.19896,52.70961,52.59728,21F_DeWijk
6.19896,6.04969,52.5982,52.48586,21G_Zwolle
6.34654,6.1969,52.59728,52.48495,21H_Dalfsen
6.49694,6.34654,52.70851,52.59618,22A_Zuidwolde
6.64487,6.4941,52.70722,52.5949,22B_Slagharen
6.4941,6.3441,52.59618,52.48385,22C_Ommen
6.64166,6.49129,52.5949,52.48257,22D_Hardenberg
6.79279,6.64166,52.70575,52.59343,22E_Coevorden
6.7892,6.63847,52.59343,52.48111,22G_Kloosterhaar
4.57956,4.43274,52.37262,52.25919,24H_Noordwijkerhout
4.72472,4.48919,52.48587,52.37198,25A_Haarlem
4.87193,4.72472,52.4866,52.37353,25B_Zaandam
4.7264,4.57956,52.37353,52.26028,25C_Hoofddorp
4.87324,4.7264,52.37426,52.26119,25D_Amstelveen
5.01915,4.87193,52.48715,52.37426,25E_Landsmeer
5.16637,5.01915,52.48751,52.3748,25F_Monnickendam
5.02008,4.87324,52.3748,52.26192,25G_Amsterdam
5.16693,5.02008,52.37517,52.26246,25H_Bussum
5.31359,5.16637,52.48769,52.37517,26A_Almere-Buiten
5.46082,5.31359,52.48769,52.37535,26B_Oostvaardersplassen
5.31378,5.16693,52.37535,52.26282,26C_Huizen
5.46063,5.31378,52.37535,52.263,26D_FlevolandZuid
5.60804,5.46063,52.48769,52.37535,26E_Larserbos
5.75526,5.60748,52.48751,52.37517,26F_Biddinghuizen
5.60748,5.46044,52.37535,52.263,26G_Zeewolde
5.75433,5.60692,52.37517,52.26282,26H_Harderwijk
5.90248,5.75433,52.48714,52.3748,27A_Elburg
6.04969,5.90117,52.4866,52.37426,27B_Wezep
5.90117,5.7534,52.3748,52.26246,27C_Elspeet
6.04801,5.89987,52.37426,52.26191,27D_Epe
6.1969,6.04801,52.48586,52.37353,27E_Wijhe
6.3441,6.19485,52.48495,52.37262,27F_Raalte
6.19485,6.04634,52.37353,52.26119,27G_Olst
6.34167,6.19281,52.37262,52.26028,27H_Heeten
6.49129,6.34167,52.48385,52.37152,28A_Hellendoorn
6.63847,6.48849,52.48257,52.37025,28B_Vriezenveen
6.48849,6.33926,52.37152,52.25919,28C_Holten
6.6353,6.48571,52.37025,52.25792,28D_Rijssen
6.78564,6.6353,52.48111,52.36879,28E_Geesteren
6.93279,6.78209,52.47947,52.36715,28F_Ootmarsum
6.78209,6.63214,52.36879,52.25647,28G_Almelo
6.92887,6.77857,52.36715,52.25483,28H_Hengelo
7.07993,6.92887,52.47764,52.36533,29A_Denekamp
7.07564,6.92498,52.36533,52.25302,29C_Oldenzaal
4.29147,4.1454,52.14559,52.03181,30D_Scheveningen
4.43515,4.2887,52.25919,52.14559,30E_KatwijkAanZee
4.5816,4.43515,52.26028,52.14686,30F_Leiden
4.43754,4.29147,52.14686,52.03326,30G_'s-Gravenhage
4.58363,4.43754,52.14794,52.03452,30H_Zoetermeer
4.72806,4.5816,52.26119,52.14794,31A_Roelofarendsveen
4.87453,4.72806,52.26192,52.14885,31B_Uithoorn
4.72972,4.58363,52.14885,52.0356,31C_AlphenAanDenRijn
4.87582,4.72972,52.14957,52.0365,31D_Bodegraven
5.02101,4.87453,52.26246,52.14957,31E_Vinkeveen

Answer 2

5.16748,5.02101,52.26282,52.15011,31F_Oud-Loosdrecht

5.02193,4.87582,52.15011,52.03722,31G_Woerden
5.16804,5.02193,52.15048,52.03777,31H_Utrecht
5.31396,5.16748,52.263,52.15048,32A_Soestdijk
5.46044,5.31396,52.263,52.15066,32B_Amersfoort
5.31415,5.16804,52.15066,52.03813,32C_Zeist
5.46026,5.31415,52.15066,52.03831,32D_Woudenberg
5.60692,5.46026,52.263,52.15066,32E_Nijkerk
5.7534,5.60637,52.26282,52.15048,32F_Garderen
5.60637,5.46008,52.15066,52.03831,32G_Barneveld
5.75248,5.60582,52.15048,52.03813,32H_Ede
5.89987,5.75248,52.26246,52.15011,33A_HoogSoeren
6.04634,5.89858,52.26191,52.14957,33B_Apeldoorn
5.89858,5.75156,52.15011,52.03776,33C_Hoenderloo
6.04468,5.8973,52.14957,52.03722,33D_Loenen
6.19281,6.04468,52.26119,52.14885,33E_Deventer
6.33926,6.19078,52.26028,52.14794,33F_Gorssel
6.19078,6.04303,52.14885,52.0365,33G_Dieren
6.33686,6.18876,52.14794,52.0356,33H_Zutphen
6.48571,6.33686,52.25919,52.14685,34A_Lochem
6.63214,6.48294,52.25792,52.14559,34B_Goor
6.48294,6.33448,52.14685,52.03452,34C_Ruurlo
6.62901,6.48019,52.14559,52.03325,34D_Borculo
6.77857,6.62901,52.25647,52.14414,34E_Haaksbergen
7.07138,6.77409,52.25483,52.11106,34F_Enschede
6.77506,6.62589,52.14414,52.03181,34G_Eibergen
4.14851,3.95912,52.03181,51.91734,37A_HoekVanHolland
4.29422,4.14851,52.03326,51.91948,37B_Naaldwijk
4.15161,3.96269,51.91948,51.80502,37C_Hellevoetssluis
4.29695,4.15161,51.92092,51.80715,37D_Brielle
4.43993,4.29422,52.03452,51.92092,37E_Delft
4.58565,4.43993,52.0356,51.92218,37F_Bleiswijk
4.4423,4.29695,51.92218,51.80858,37G_Hoogvliet
4.58765,4.4423,51.92326,51.80984,37H_Rotterdam
4.73137,4.58565,52.0365,51.92326,38A_Gouda
4.87711,4.73137,52.03722,51.92416,38B_Schoonhoven
4.73301,4.58765,51.92416,51.81091,38C_Alblasserdam
4.87838,4.73301,51.92488,51.81181,38D_Sliedrecht
5.02285,4.87711,52.03777,51.92488,38E_Ameide
5.16859,5.02285,52.03813,51.92542,38F_Vianen
5.02376,4.87838,51.92542,51.81253,38G_Gorinchem
5.16913,5.02376,51.92577,51.81306,38H_Leerdam
5.31433,5.16859,52.03831,51.92577,39A_Culemborg
5.46008,5.31433,52.03831,51.92595,39B_WijkBijDuurstede
5.31451,5.16913,51.92595,51.81342,39C_Geldermalsen
5.45989,5.31451,51.92595,51.8136,39D_Tiel
5.60582,5.45989,52.03831,51.92595,39E_Rhenen
5.75156,5.60527,52.03813,51.92577,39F_Wageningen
5.60527,5.45971,51.92595,51.8136,39G_Beneden-Leeuwen
5.75065,5.60473,51.92577,51.81342,39H_Bergharen
5.8973,5.75065,52.03776,51.92541,40A_Oosterbeek
6.04303,5.89602,52.03722,51.92487,40B_Arnhem
5.89602,5.74974,51.92541,51.81306,40C_Nijmegen
6.04139,5.89475,51.92487,51.81252,40D_Gendt
6.18876,6.04139,52.0365,51.92416,40E_Doesburg
6.33448,6.1854,52.0356,51.84686,40F_Doetinchem
6.18675,6.03976,51.92416,51.81181,40G_Lobith
6.48019,6.33211,52.03452,51.92218,41A_Varsseveld
6.62589,6.47746,52.03325,51.92092,41B_Lichtenvoorde
6.62279,6.32975,51.92218,51.80984,41C_Ulft
6.85899,6.62218,52.03181,51.89701,41E_Winterswijk
4.15469,4.00973,51.80715,51.69321,43A_Dirksland
4.29967,4.15469,51.80858,51.69481,43B_Middelharnis
4.15776,4.01315,51.69481,51.58088,43C_Bruinisse
4.30237,4.15776,51.69624,51.58248,43D_Oude-Tonge
4.44465,4.29967,51.80984,51.69624,43E_Numansdorp
4.58964,4.44465,51.81091,51.69749,43F_Strijen
4.44699,4.30237,51.69749,51.5839,43G_Dinteloord
4.59163,4.44699,51.69857,51.58515,43H_Klundert
4.73465,4.58964,51.81181,51.69857,44A_Dordrecht
4.87965,4.73465,51.81253,51.69946,44B_Biesbosch
4.73627,4.59163,51.69946,51.58622,44C_Zevenbergen
4.88091,4.73627,51.70017,51.58711,44D_Oosterhout
5.02466,4.87965,51.81306,51.70017,44E_Almkerk
5.16968,5.02466,51.81342,51.70071,44F_Heusden
5.02556,4.88091,51.70071,51.58782,44G_Dongen
5.17022,5.02556,51.70107,51.58835,44H_Waalwijk
5.31469,5.16968,51.8136,51.70107,45A_Hedel
5.45971,5.31469,51.8136,51.70125,45B_Kerkdriel
5.31487,5.17022,51.70125,51.58871,45C_'s-Hertogenbosch
5.45953,5.31487,51.70125,51.58889,45D_Schijndel
5.60473,5.45953,51.8136,51.70125,45E_Oss_2003
5.74974,5.60419,51.81342,51.70107,45F_Grave_2003
5.60419,5.45935,51.70125,51.58889,45G_Veghel_2003
5.74884,5.60365,51.70107,51.58871,45H_Uden_2003
5.89475,5.74884,51.81306,51.70071,46A_Cuijk
6.05426,5.89349,51.81252,51.70017,46B_Groesbeek
5.89349,5.74794,51.70071,51.58835,46C_Mill
6.13939,5.89224,51.70017,51.58782,46D_Boxmeer
4.1608,4.01656,51.58248,51.46854,49A_SintMaartensdijk
4.30506,4.1608,51.5839,51.47014,49B_BergenOpZoom
4.16383,4.01994,51.47014,51.35621,49C_Krabbendijke
4.30773,4.16383,51.47156,51.3578,49D_Rilland
4.44932,4.30506,51.58515,51.47156,49E_Wouw
4.5936,4.44932,51.58622,51.41663,49F_Roosendaal
4.45164,4.30773,51.4728,51.3536,49G_Huijbergen
4.73788,4.5936,51.58711,51.41769,50A_Etten-Leur
4.88217,4.73788,51.58782,51.40734,50B_Breda
5.02646,4.88217,51.58835,51.47547,50E_Gilze
5.17075,5.02646,51.58871,51.476,50F_Tilburg
5.02735,4.88341,51.476,51.36311,50G_Baarle-Nassau
5.17129,5.02735,51.47635,51.36364,50H_LageMierde
5.31505,5.17075,51.58889,51.47635,51A_Oisterwijk
5.45935,5.31505,51.58889,51.47653,51B_Best
5.31523,5.17129,51.47653,51.364,51C_Hoogeloon
5.45917,5.31523,51.47653,51.36417,51D_Veldhoven
5.60365,5.45917,51.58889,51.47653,51E_Son_2003
5.74794,5.60311,51.58871,51.47635,51F_Helmond_2003
5.60311,5.45899,51.47653,51.36417,51G_Eindhoven_2003
5.74705,5.60258,51.47635,51.364,51H_Mierlo_2003
5.89224,5.74705,51.58835,51.476,52A_Milheeze
6.03652,5.89099,51.58782,51.47547,52B_Venray
5.89099,5.74617,51.476,51.36364,52C_Deurne
6.03492,5.88975,51.47547,51.36311,52D_Helenaveen
6.23852,6.03492,51.58711,51.47476,52E_Blitterwijck
6.23641,6.03333,51.47476,51.3624,52G_Venlo
4.25297,4.0233,51.35867,51.23939,55A_Hulst_1999
5.31541,5.11166,51.36417,51.25151,57A_Reusel
5.45899,5.31541,51.36417,51.25181,57B_Bergeyk
5.60258,5.45882,51.36417,51.25181,57E_Leende
5.74617,5.60205,51.364,51.25164,57F_Weert
5.74529,5.54437,51.25173,51.13937,57H_Stamproy
5.88975,5.74529,51.36364,51.25128,58A_Nederweert
6.03333,5.88851,51.36311,51.25075,58B_Panningen
5.88851,5.74441,51.25128,51.13893,58C_Thorn
6.03174,5.88729,51.25075,51.1384,58D_Roermond
6.23432,6.03174,51.3624,51.25005,58E_Tegelen
6.18928,6.03016,51.25005,51.13769,58G_Swalmen
4.00801,3.80483,51.8617,51.74682,64F_Goedereede
3.86667,3.63507,51.74758,51.63204,64G_Haamstede
4.01144,3.86667,51.74937,51.63526,64H_Zierikzee
3.58166,3.42286,51.63116,51.51629,65A_Domburg
3.72605,3.58166,51.6333,51.51885,65B_Veere
3.58613,3.44212,51.51885,51.40423,65C_Vlissingen
3.73015,3.58613,51.52098,51.40653,65D_Middelburg
3.87044,3.72605,51.63526,51.52098,65E_Kortgene
4.01486,3.87044,51.63704,51.52293,65F_Ouwerkerk
3.87419,3.73015,51.52293,51.40866,65G_Heinkenszand
4.01825,3.87419,51.52471,51.41061,65H_Goes
3.59057,3.34636,51.40653,51.23406,67A_Oostburg
3.73424,3.59057,51.40866,51.26052,67B_Ijzendijke
3.87792,3.73424,51.41061,51.29634,67E_Terneuzen
4.02162,3.87792,51.41238,51.29828,67F_Zaamslag
3.88163,3.7383,51.29828,51.18402,67G_SasVanGent
4.02498,3.88163,51.30005,51.18595,67H_Axel
5.88729,5.74354,51.13893,51.02657,68B_Echt
5.88607,5.71423,51.02665,50.91429,68D_Sittard
6.11588,5.88607,51.1384,51.02604,68E_Montfort
6.11411,5.88486,51.02604,50.91369,68G_Brunssum
5.88486,5.62804,50.9145,50.74597,69B_Maastricht
6.11234,5.88305,50.91369,50.74515,69E_Heerlen

Comments

After a quick format change in a spreadsheet it was easy to create a checker.
I tried to create on for Top25 To Move Challenge Drenthe http://coord.info/GC1T978 http://project-gc.com/Challenges//10714
I interpret the text as that all caches have to be Drenthe and events are not allowed.
The checker dont cant check for the rule that you can use owned caches if no other exist in that area. The checker cant find the number of caches that exists in a given area.

There are some problem the polygon list only contains 26 areas but 30 are required. The "12A t/m" is a line i don't understand and why some areas are in bold i have now idea either. I suspect it mean to add some more because the area covered by the polygon looks strange
"7C, 7D, 11F, 12A t/m 12E, 12G, 12H, 13C, 16E, 16F, 16G, 16H, 17A, 17B, 17C, 17D, 17E, 17F, 17G, 17H, 18A, 21E, 21F, 22A, 22B en 22E."

But there are a possible larger problem. The border of the polygons are overlapping. Zoom in on a four corners interception and you will see the problem.
If the coordinates are correct the checker might use the same cache in both areas if i read the code correctly. A small patch could be added to only use one area but then the result might be false negative. To make no false negative/positive with overlapping polygons require a lot of coding.
I looked at the "Boxes Mapsource" TOP25_Vakken_Drenthe_Mapsource_V1.0.gdb file and the areas are not overlapping in that file
My guess is that the coordinates above are not correct and they should be non overlaping

Answer 3

TOP25 Checkers are made in polypoints with no overlaps

Overijssel - http://project-gc.com/Challenges/GC1GBRQ/17091

Friesland - http://project-gc.com/Challenges/GC2PMY5/17087

Drenthe - http://project-gc.com/Challenges/GC1T978/16944

Noord-Holland - http://project-gc.com/Challenges/GC1Z97V/17068

Zuid-Holland - http://project-gc.com/Challenges/GC2102W/17062

Utrecht - http://project-gc.com/Challenges/GC2ZE46/16926

Flevoland - http://project-gc.com/Challenges/GC25FD4/16928

Veluwe - http://project-gc.com/Challenges/GC1QEN1/16929

Achterhoek - http://project-gc.com/Challenges/GC264TA/16931

Groningen - Not made cache is archived