This is a waymarking challenge...
In order to log this cache you need to play bingo.. or more importantly bingo with your waymarks.
Go to waymarking... select your category grid and find the "visited" pull down menu and update your grid
You need 10 in a row horizontally or vertically. I will check those that complete it. Those that have not completed it will be deleted.
The caches need to be consecutive (touching each other)... originally the thought was an entire row 20, but that was far too tricky This can be done up/down/diagonal, just 10 in a row touching each other.
The following DOES NOT show a completed block, but is to give you an idea of what you are looking for on the waymark site.
