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Grey Matters

It's all in your head, literally.

A crossword centered on cognition and problem-solving. This brain teaser features clever wordplay and clues about the process of thinking itself.

By PuzzledCross

1
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345
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789
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111213
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17

Across

3.A seemingly bottomless problem
6.Tough to crack, like a case or a nut
7.Render a picture, say
10.Spine of a mountain
11.State of being poised for the challenge
14.Made a miscalculation
15.An indecisive person's go-to
16.Strategist's outline
17.Consider the pros and cons

Down

1.Pythagoras had a famous one
2.Of first importance, as a concern
4.Where grey matter matters most
5.What arias and anthems are
7.A lion's share of satisfaction?
8.In a perfect world...
9.Phase for a hypothesis
12.Clear the board
13.Work the bugs out of

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