Buried Treasure

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Friday, May 16, 2008:

Captain Devious, the Puzzling Pirate, has hidden his booty on Skull Island. You, the disgruntled cabin boy, have taken his treasure map and snuck off the ship to steal it for yourself.

There is one treasure chest per column and one per row. No treasure is buried underwater. Skulls mark every place on dry land where, along the same row and column, one chest is at least 4 squares away and another is less than 4 squares away.

You can dig in any spot by marking it with an 'X', and eliminate any spot by marking it with an 'O'. Beware - Devious has planted vials of poison gas in every spot that doesn't contain treasure. Don't dig anywhere you shouldn't!