REMOVE

[RyanKent]

According to your post the URL to your site is http://www.yourjigsawpuzzles.co.uk/. Is that correct?

If so, then for starters I perform a search for your site where I see you ranking as #1 (which can happen even with a penalized site): http://www.google.co.uk/search?&q=www.yourjigsawpuzzles.co.uk&pws=0

Next, I search for "Jigsaw Puzzles" where I see you in position #4. http://www.google.co.uk/search?&q=jigsaw%20puzzles&pws=0

For penalized sites, Google may bounce your rankings around so sometimes you appear normally while other times you are not in the top 50.

[hehhreh]

This post is deleted!

[EGOL]

IMO, this site has a rankings reduction from not enough unique content,  cookie cutter pages, and category dupes.

Sample SERPs

[hehhreh]

This post is deleted!

[EGOL]

I think that this site has a lot of problems and until you put some work into it and give that work time to stabilize in the SERPs it is not a good use of anyone's time to review it.

You have gotten a lot of great advice, most of which can be accomplished by writing and editing.  For the technical issues, if you can't handle them yourself I recommend hiring a pro to fix them.

Good luck.

[JaredMumford]

Perhaps you should look at adding canonical tags to your pages - then you wouldn't need to worry about any dynamic URLs causing duplication issues.

As for unique descriptions for puzzles - sure its tough - but I recommend sitting down and getting it done, or hiring a professional to do it. I see lots of good advice here. But sometimes it can be overwhelming and just too time consuming to do yourself.

[RyanKent]

Rhys, here is a screenshot of what I am seeing: http://imgur.com/pwZjP

One possible reason you may see different results is Google may be bouncing your results around intentionally due to a penalty.

[hehhreh]

This post is deleted!

[RyanKent]

I'm sorry for the error Rhys. It's 2am here and apparently I need some sleep.

EGOL's advise seems quite sound. Your site's quality is very low. I know that is hard to hear as you likely put time and effort into it. You may also examine some competitor sites and feel yours is better in some areas. If that is the case, I would encourage you to focus on your site.

[GeorgeAndrews]

I agree with EGOL and Ryan, it looks like you have a lot to go on already. Good luck to you!