Happy Saturday, super sleuths!

It's round four of "Who Knows Merrimack Best" and at the end of week three, our field of leaders narrowed to five players with six points and more than a dozen hot on their heels.

There's still plenty of time to play, so start accumulating your points now. Don't wait! It will be harder to catch up as play goes on.

We've got a new mystery photo for you this week. Do you know know where we shot this?

Please submit your guesses via email to carolyn.dube@patch.com. It keeps it fun for everyone playing and posting your guess in a public space may mean giving away the answer to someone who didn't know it and effectively negating your points that week. Only answers received via email will be eligible for points.

SCORING: Simply playing has never been more important. Email your guess, you get a point. Get the answer right and you get two points. Additionally, we are accepting submitted photos for the contest. If your photo is selected to run, you will get two points for that week since you won't be able to guess.

At the end of the 26 weeks (six months) the top point scorer gets a pretty "sweet" prize – a $100 gift card from our co-sponsor Swan Chocolates to use in store at 436 Daniel Webster Highway or online at www.swanchocolates.com.

Additionally, each week we will give away a canvas Patch tote bag to the first person to accurately guess the answer to that week's mystery photo. (You may only win one tote bag during the contest period.)

Photos will be released on Saturday and the answer revealed on Monday.

Click Here for complete Official Rules.

Any questions may be directed to Merrimack Patch Editor Carolyn Dube at carolyn.dube@patch.com.

Happy hunting and have fun!