Jonathan Snyder/Wired.com This week we want you to throw away your color crutches and walk boldly into the shadows. No more hiding behind hues, it's time to put your photo chops to the test.

Use the Reddit widget below to submit your best black-and-white photo and vote for your favorite among the other submissions. The 10 highest-ranked photos will appear in a gallery on the Wired.com home page. Though the format is called black-and-white, the name is misleading: It's really all about the grays – what happens between creation and death. For this assignment, shadow and light are your left and right fists of truth, and your subject is your punching bag.

The photo must be your own, and by submitting it you are giving us permission to use it on Wired.com and in Wired magazine. Please submit images that are relatively large, the ideal size being 800-1200 pixels or larger on the longest side. Please include a description of your photo, which may include exposure information, equipment used, etc.

We don't host the photos, so you'll have to upload it somewhere else and submit a link to it. If you're using Flickr, Picasa or another photo-sharing site to host your image, please provide a link to the image directly and not just to the photo page where it's displayed. If your photo doesn't show up, it's because the URL you have entered is incorrect. Check it and make sure it ends with the image file name (XXXXXX.jpg).

Please bookmark this page and check back periodically over the next two weeks to vote on new submissions!

Also, check out the winner's galleries from our previous contests: Holga, Red, Self-Portrait, Night and Macro.

Vote on black-and-white photos submitted by other readers.

Show entries that are: hot | new | top-rated. Submit your black and white photo.

Submit your black and white photo.

(No more than one every 30 minutes. No HTML allowed.)

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