Our sneaky puzzle master Will Nediger hand-picked these five crossword puzzles for budding cryptanalysts - all of them themed around codes, Bletchley Park, and its famous codebreaker Alan Turing.

Try your hand at our exclusive online crosswords, time yourself with our built-in clock, or play online with a friend. You can sign up for free to get SPYSCAPE crosswords automatically delivered to your inbox every Friday and - if you need a bit of help solving our puzzles - check out our handy crossword tip sheet.

1.) Enigmatic

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Crossword cruciverbalist Bryant White's Enigmatic will capture the imagination of Turing and Bletchley Park fans. White describes his puzzle as a riddle wrapped in a mystery.

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2) 1010010001

You’ll need to do some digital deciphering in order to solve White’s tricky 1010010001 puzzle but if you want to be a codebreaker, you will need to solve puzzles like this every day!
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3) Encrypted

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You’ll also be challenged by puzzle constructor Catherine Cetta's Encrypted. But you didn’t really think SPYSCAPE would go easy on you, did you? 

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4.) Get Cracking

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By now you can probably guess the theme of Get Cracking, but the more important question is: Can you solve this fiendishly difficult puzzle? 

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5.) Crack Open Your Wallet

Ensure your money is safe before trying your hand at Crack Open Your Wallet from crossword constructor Lisa Senzel.