The checker is for a series of 9 challenges, one for each year from 2006 to 2014. It would actually have to be 9 checkers however only the year would need to change in each one so just one template is required. The challenges require that the following criteria are met:
One cache placed in each of the first 4 weeks of each month i.e.:
1st - 7th of each month,
8th - 14th of each month,
15th - 21st of each month,
22nd - 28th of each month.
Cache 49 must have been hidden on either 29th, 30th or 31st of January, February or March.
Cache 50 must have been hidden on either 29th, 30th or 31st of April, May or June.
Cache 51 must have been hidden on either 29th, 30th or 31st of July, August or September.
Cache 52 must have been hidden on either 29th, 30th or 31st of October, November or December.