Project-GC Q&A - Recent questions tagged checker

Why aren’t my challenge caches showing as completed on Project‑GC?

Wed, 18 Feb 2026 15:45:45 +0000

I use Project‑GC to track my geocaching stats and check challenge caches, and but some challenges that don’t show as completed when even though I know I met the requirements. Im logged in with my account and I can see other stats fine.

I even tried refreshing the data and waiting a couple of days the FAQ says data can take a while to update, but it still shows “not completed” for challenges I definitely fulfilled. :contentReference[oaicite:0]{index=0}

I run a fast Kolkata Fatafat (FF) geocaching route tracker on the side and it updates quickly, so I’m wondering if I’m missing a step on Project‑GC or if there’s some trick to force a proper challenge check. Any ideas on what might be going wrong or how to fix it?

Where can I find a list of the oldest geocache for each country - list used by PGC for checkers

Fri, 13 Feb 2026 14:56:20 +0000

When traveling, some countries have multiple caches hidden the same day (Bahamas has 4 caches hidden Jan 13, 2003) Where is the list PGC uses to determine you have the lodest in a country

Is it possible to automatically check challenges in a region or country?

Wed, 12 Nov 2025 17:36:50 +0000

I have read the procedure Project-GC uses to auto check the challenges nearby your home address in this topic: Auto-challenge-checkers

Now am I planning a trip to Sweden and I was wondering if it possible to let project-GC check if you fulfill challenges in a particular region? It is mentioned as a future topic, but I understand it is hard to complete all wishes at the same time to this site.

Thank you for your help,

Greetings GonzAlex

Challenge search

Thu, 03 Jul 2025 12:36:16 +0000

Dear users,

I'm looking for a existing Challenge for cloning it..

My own seach was unsuccessful. So I want you all to ask if you know a Challenge with this conditions:
Find x Cachetypes on one Day in a Country. And this for y Countrys.

My example output:
I found x Cachetypes on one Day in y Countrys
Luxemburg on 01.01.2022
France on 03.03.2022
Begium on 12.12.2024

I hope you can find a matching Challenge-Checker. If not, I made a Checker-request.

Thank you and best regards
Alex8012

Benötige einer challenge checker für einen neuen cache was mit Travelbugs zu tun hat

Tue, 25 Mar 2025 21:06:21 +0000

Ich benötige einen Checker der in den eigenen gefunden Cache sucht, das Wort "T R A V E L B U G " also ein Cache der mit T beginnt, einen der als zweite stelle ein R hat und einen anderen cache der als dritte stelle ein A hat und so weiter bis das wort fertig ist. bekommt das jemand hin?

Finds of a specific weekday / Challenge checker

Sun, 21 Jan 2024 14:31:17 +0000

Is it possible to list all finds of a specific weekday (e.g. Sunday)?

And I think of hiding a challenge cache… Any given Sunday… objective is 31 finds on 31 different Sundays… e.g. Sunday the 1st, Sunday the 2nd…. Until Sunday the 31st…

How is it possible to create a checker for this? Or is there a checker, that can be copied/modified?

Sorry guys, if these questions seem to be stupid, but I’m new to this…

Regards,

Olli

Help needed with challenge-checker

Tue, 28 Nov 2023 07:54:43 +0000

Hello everyone,

I would like to create a challenge and need some help.

I need a challenge-checker for the following log condition:

You are only allowed to log if you have already found a foreign cache in at least 6 different countries

and

you have had your own cache logged by geocachers from at least 6 different countries.

Thank you in advance for your help and best regards,

Christian

Need help for challenge checker

Mon, 27 Nov 2023 12:26:15 +0000

Hello everyone,

I am Christian and would like to create a challenge cache.

To fulfil the log condition I need a challenge checker.

The challenge checker should check the following log condition:

You may only log if you have logged at least 8 different GC types in a single day.

Please help me with the creation of the challenge checker.

Many thanks in advance and best regards,

Christian

Scriptnavn: old Generic Number of caches checker DONT ADD TAG (af Target.).

Mon, 15 May 2023 08:47:30 +0000

Is it possible to add labcaches on this challenge?

custom filter for finding cachers found specific list of counties

Wed, 19 Oct 2022 07:48:37 +0000

I'm looking for a way to find cachers who meet criteria for certain to-be challenge where the criteria is having found specific set of counties (across few countries).

For this I was first planning to use existing statistics tools (top county finders) and custom filters (custom filter with those counties only) as a help, but stumbled upon the following issues:

Top county finders stat does not allow adding a custom filter at all. I guess this is as it is and there are no ways around it?

The custom filter itself seem very limited - ie. I don't seem to find a way to create a single custom filter that would accept a predefined list of (16) counties from few (6) different countries. I guess there is no way to create a custom filter like that which would accept 16 counties from few different countries as criteria for finds?

Also, I've created a challenge checker for the particular challenge, and run it against few nicks individually but that seems like very slow approach on trying to identify the minimum 10 cachers meeting the criteria.

Are disabled challenge checker tags for unpublished caches automatically re-enabled once the name is populated?

Thu, 06 Oct 2022 17:58:24 +0000

I got challenge checker tagging permissions a while back and just used them for the first time to tag checkers for a couple of challenge caches I am publishing. One of the tags on an unpublished cache was set to disabled, which I assume is because the name is not populated yet. Once the cache is published and the name is populated, is the tag automatically re-enabled? I have verified that the tag works as expected. The script is “Check number of finds” and the GC code is GCA0KM0. Thank you for your help.

Disable checker

Wed, 02 Feb 2022 23:40:34 +0000

Can someone please disable the checker

https://project-gc.com/Challenges/GC9N29P/66036

I found out that it violates the new guidelines.

Why doesn't project-gc show my current streak when I use the challenge checker?

Sat, 03 Jul 2021 12:33:49 +0000

When I use the checker for GC5FNB1, it shows my streak from 2018-2019 and not my current streak. On my profile stats in project-gc, the Most consecutive days with finds: shows my correct information but it doesn't show it in the checker.

Checker for badgegen belt fails

Mon, 21 Jun 2021 15:36:13 +0000

This checker fails when running: https://project-gc.com/Challenges/GC4NA7W/20938

Ich benötige einen Challange Checker für meinen GC46KHT

Wed, 23 Sep 2020 15:43:18 +0000

Hallo, ich würde den Cachern gerne einen Checker im Listing zu Verfügung stellen.

Anforderungen:

Variante A

1.) Man hat selbst mehr als 750 Travelbugs/Geocoins discovered oder moved.

2.) Man hat mehr als 88 verschiedene Arten discovered/moved. DISCOVER ME! <<<TP882V>>>

3.) Man hat selbst mindestens 5 Reisegegenstände aktiviert. (2 verschiedene Arten)

ODER

Variante B

1.) Man hat selbst mehr als 1.111 Travelbugs/Geocoins discovered oder moved.

2.) Man hat davon mehr als 333 mal die klassischen Travel Bug Dog Tags discovered/moved.

3.) Insegsamt hat man schon mehr als 444 Arten an trackfähigen Gegenständen discovered/moved.

Wer kann mir hier sowas erstellen? Ich habe keine Ahnung davon, würde mich gerne anschließend erkenntlich zeigen.

Dynamischer Gruß aus Dresden

%age figure in checkers

Mon, 20 Jul 2020 21:38:41 +0000

Hi
This may have been asked before, apologies if it has - I searched and couldn't find related

How is the %age figure shown in the challenge checker box calculated

many thanks

Creating challenges/checkers order

Mon, 18 May 2020 09:13:51 +0000

What is the best/correct way to create challenges with checkers?

Should I first ask the reviewers if a challenge is allowed to begin with
Or is it better to check here if it's possible to program a a checker for the challenge?

Because both the project-gc documentation as well as the geocaching.com documentation don't mention what the best order to do this in is.

D/T challenge - Rules and checkers

Sat, 04 Aug 2018 06:13:19 +0000

I want to create a challenge cache where your top 25 found mystery caches D/T added together >= 200. IS this permissible under the new challenge cache rules and how do I go about creating a checker? Cheers

Add Completion graphics to find checker page

Fri, 08 Jun 2018 01:17:25 +0000

Howdy,

When one loads the Challenge search there is a long list of checkers presented.As a tagger and scripter, it is a great interface. As a challenge cacher, it seems as more information could make it more useful.

It might be nice if image of the checker result with the red x or green check would help.

My quick thought it to tuck the checker graphic in the right hand corner of the blue box with the checker details. (You folks have made my earlier suggestions even better.) Lousy mockup available on request.

That way the search screen turns into something of a scoreboard and people don't need to run the checkers again unless they think the results are out of date.

Just a thought.

Why does challenge map show checker when cache page doesn't

Sun, 20 May 2018 18:24:55 +0000

I've noticed a number of challenge caches on the map that show they have checkers (with some showing I've met the challenge), yet when I go to the actual cache page, there is no checker. How can this be? And, how do I find and run such a checker to gather the satisfying data?

e.g., GC4Y2RV, GC5RXP5, GC4Y2TC

Own checker, how to do it?

Mon, 11 Sep 2017 16:23:24 +0000

I want to create more checkers myself, for my caches. But I do not know how, and then try and upload it.
Is there a guide?

I master programming languages, I know LUA.
(I do not want to read the whole forum, because my English is not the best and I would lost the hours just by translation.)

Marking, that I used the challenge checker successfully

Thu, 13 Apr 2017 12:13:12 +0000

We like challenges and also the challenge checker here on Project-GC. After we logged a cache with challenge checker, we can see it on Project-GC with a smilie, thats fine. But we would like also to see which challenge checker we used successfully. Is it possible to add this feature in the future?

How do I report that a challenge checker clearly doesn`t work?

Wed, 29 Mar 2017 08:42:44 +0000

I found a challenge checker that didn`t work even though I fulfill the requirements for the challenge. So I tested it for the last 10 users, and a few more that have provided evidence that they qualify. The checker failed them all.

So I am wondering how to deal with this and how to report it.

Also, I recently found there is already another script available for the challenge which does work.

how do i cancel a cloned checker to make another?

Thu, 09 Mar 2017 01:41:15 +0000

how do i cancel a cloned checker to make another with the same GC code?

Challenge Checker: How to enable "Tag Script"-Button ...

Fri, 06 Jan 2017 10:35:05 +0000

Hi there,

I'd like to setup a checker, and actually found a perfect checker with a almost fitting configuration. I understood that I can modify the configuration to my needs easily by clicking on "Tag script"-Button of the checker. However this Button is disabled (greyed out) for me. I figured out that actually this button is greyed out for all checkers for me.

Any glue why this button is disabled for me and/or how to enable it?

Thanks a lot in advance.

Bernhard (alias HeXaHeBeSt)

Challenge Checkers: removal of non challenges

Sun, 12 Jun 2016 20:16:48 +0000

There are a lot of caches listed on the challenge checker map that are not challenges as such, they just have the word challenge in the cache name. I see no way of automating their removal, but could someone not remove them manually? A map of challenge caches should be exactly that.

Using existing challenge checkers for new challenge caches?

Mon, 30 May 2016 03:09:08 +0000

I want to publish a challenge cache and noticed there is already a similar challenge elsewehere in my country. Can I copy the skript of that checker? I noticed that there seems to be a button "download source" but nothings seems to happen...?

Paying member /non paying member

Thu, 26 May 2016 20:46:11 +0000

I am a paying member and at this checker page:

http://project-gc.com/Challenges/GC4R4WT/6478

I get the follwowing error message.

Error As a non paying member of Project-GC you are only allowed to run 10 challenge checkers per 24 hours. You have exceeded that.

What to do when a checker is wrong?

Mon, 07 Mar 2016 12:44:55 +0000

I have now come across a challenge that is said to have a checker, but this tagged checker are not correct. The challenge is to have a cache in each day in a month, but the checker checks for one cache for 01. one for 02. and one for 03.... but not for the same month. So I wonder how to ask for the checker to be removed from the map of challenge-checkers. It will be bad for unexperienced users to get a green light in the automatic checker on the map, and then get their logs deleted because of this error. The cache and the checker in particular are http://project-gc.com/Challenges/GC3N1PC/9399

checker request for GC2Y75G

Wed, 17 Feb 2016 20:51:44 +0000

Would it be possible to create a checker for GC2Y75G, please.

Thanks a lot

Can a checker be created for: GC5FET4 ?

Tue, 09 Feb 2016 11:38:54 +0000

http://coord.info/GC5FET4

Can a checker be created for: GC5FEPA ?

Tue, 09 Feb 2016 11:37:58 +0000

http://coord.info/GC5FEPA

Can a checker be created for: GC5FENP ?

Tue, 09 Feb 2016 11:36:45 +0000

http://coord.info/GC5FENP

Could a checker be made for GC3MY78?

Thu, 21 Jan 2016 17:11:56 +0000

CHECKER FOR GC4RFH0

Mon, 21 Dec 2015 07:01:52 +0000

Is it possible for someone to create a checker for GC2M8VX?

Sun, 20 Dec 2015 18:30:56 +0000

Is it possible for someone to create a checker for GC2M8VX?

PQ for challenges

Tue, 20 Oct 2015 21:04:35 +0000

Hi *

Wouldn't it bei nice to get the caches in the checker map directly as as pq?

Greetings

Mike

bug in checker for GC45DKT

Wed, 23 Sep 2015 14:04:15 +0000

it seems that the checker (http://project-gc.com/Challenges//1091) dosnt work correctly! In my opinion it collect all D5 (Multi, Tradi, Mystery, etc) caches in different countries. The correct request of this challenge is to find one (or more) D5 MYSTERY in 5 different countries. Maybe someone can reconfigure the checker and Ganja 1447 has to recheck his log.

Bug: No option to check challenges

Sat, 25 Jul 2015 17:35:10 +0000

I have a problem to check challenges where checker already exist. It is no special checker. I've tried several checker.

Message that I got: "Failed to execute script"

Tried first with http://project-gc.com/Challenges/GC4F38M/1886

Remove tags for non-challenges named "NRW 53 Challenge #xxx"

Tue, 19 May 2015 12:32:09 +0000

In the German state North Rhine-Westphalia (NRW) we have a nice series of caches called "NRW 53 Challenge". One cache in each of the 53 counties/county-level cities in NRW plus bonus cache are planned. There are 20 in the moment.

They have different owners, most of them are mysteries. Since they are called "NRW 53 Challenge #Kreis xxxx" (xxxx for the name of each county/city, e.g. "Bonn") they of course all come up in the challenge map on PGC.

What I personally do not like is the idea to create challenge checkers for most of them, which was done by user "c0re" who tagged the script "Not really a challenge (by SeekerSupreme)" to

GC3QVJ3 - NRW 53 Challenge #Bielefeld
GC3WNJW - NRW 53 Challenge #Rheinisch-Bergischer Kreis
GC3WQ22 - NRW 53 Challenge #Kreis Siegen-Wittgenstein
GC3X7VB - NRW 53 Challenge #Kreis Gütersloh
GC3XMYB - NRW 53 Challenge #ESSEN
GC3YAW5 - NRW 53 Challenge #Kreis-Olpe
GC40AYK - NRW 53 Challenge #Kreis Düren
GC36WQQ - NRW 53 Challenge #Bonn
GC3WMYG - NRW 53 Challenge #Leverkusen
GC3WMZW - NRW 53 Challenge #Köln
GC3WPJ4 - NRW 53 Challenge #Mülheim an der Ruhr
GC3X0GW - NRW 53 Challenge #Kreis Mettmann
GC3X188 - NRW 53 Challenge #Düsseldorf

Since these caches are puzzles rather than real challenges I would prefer to drop the tags to these caches.

Ulf

GC5QZ3B needs a checker

Mon, 27 Apr 2015 10:52:22 +0000

Hi all,

it would be nice to have a checker for GC5QZ2B. The checker needs to check if one has find 5 out (currently) 18 mysteries. The series is constantly growing. You will find the current list in the listing to TB TB6QW7A.

The checker should seek for mysteries containing "Berka-Mystery" to find all current caches. Afterwards it has to check if the candidate has enough mysteries logged so that their starting letters form the sentence "ICH HABE FÜNF BERKA MYSTERIE GELOGGT".

Thanks for your help.

Lars

A friends needs a checker for GC4WPKG

Thu, 16 Apr 2015 10:52:47 +0000

Could someone please create a checker for GC4WPKG ?

What it needs to check is that the geocacher has found five geocaches with the following three attributes on all of them:

Teamwork required
Dangerous area
Climbing gear

A config option to exclude the cache code GC4WPKG itself would be nice (if other things gets configurable).

The output could as I understand it be the gccodes only, but maybe adding the cache names gives a nice touch to it.

What language are the scripts written in? Is there a guide for the commands? Thank you. -Jeepers_Creepers [^]

Mon, 13 Apr 2015 01:24:35 +0000

I need a checker for GC5KJ76

Sun, 12 Apr 2015 13:58:28 +0000

I need a checker for GC5kj76 August Consective Days Challenge

I need some help with a tag, check 3 of 4

Sat, 28 Mar 2015 20:43:40 +0000

Hi all, I need some help with a tag, i need it to check if i qualify with 3 of 4 options.

You can find it heer.

http://project-gc.com/Challenges/GC5APPN/12952

I would like to request a checker for GC5PPY5 (52 Weeks of Events).

Fri, 27 Mar 2015 21:42:32 +0000

Checker request for GC3570E - 10 types in 1 day in 3 countries

Thu, 26 Mar 2015 06:26:40 +0000

http://coord.info/GC3570E

Challenge Requirements

To be allowed to log this cache you must have logged at least 10 different cache types during the same day. Furthermore you must have done this three times (not necessarily on the same day) and in different countries each time. I.e. you need to have logged 30 caches to fulfill this requirement. However, lab caches do not count since you can not prove which day they were logged.

You should specify in your log on which dates you logged at least 10 different cache types during the same day in three different countries. You should also state the cache names, GC code and type for each and everyone of the caches.

***********

If someone can create a challenge checker for this challenge cache it would be much appreciated. Thanks!

Is it possible to make a checker for GC5GECG?

Wed, 18 Feb 2015 11:45:08 +0000

Before you log on the website of this cache, you should find (have found) 2 other caches that have met de following requirements:
1. both caches should be found on the same date
2. make sure the coordinates at the top both cache pages are between 10 and 20 kilometres apart
3. both caches must be of the same type (only Traditional-, Multi-, Letterbox, Virtual-, Webcam-, Mystery-, Earth-, Wherigo caches and all Events count)

Is it possible to do a checker for GC3G25H?

Sat, 14 Feb 2015 16:32:59 +0000

http://coord.info/GC3G25H could really use a checker, as several cachers are confused.by how the route does not go through downtown Woodland.

Would it be possible to have dummy checkers?

Wed, 11 Feb 2015 02:28:34 +0000

I was just wondering if it was worth setting up dummy "checkers" for uncheckable and non-challenge caches, so that a tagger/script writer can look at the challenge map and pick out caches marked as having no checkers to action.

I ask because I've been looking at the Australian challenge caches map and keep on clicking on the same non-challenges or uncheckable challenges (e.g., animal names in the cache name). If I was able to tag these caches as essentially ignorable, I could concentrate on the real challenges.