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Can you place thirteen mines on a Minesweeper grid such that they create seven 5s? The size of the grid can be arbitrary. The mines may ..read more
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Can you find a convex pentagon (5 sides) such that all its sides, diagonals and area are distinct integers? Note that a polygon is convex ..read more
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A monastery has a curious practice: they call it the music of the heavens. The monks cycle through a cave with cups, to a stalactite at ..read more
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I saw this problem many years ago. I am sure many puzzlers will know its original name. I was reminded of it when reading about Conquering ..read more
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My initials are "Y" My initial parts make a ditty sound My first's first is once round My second's middle is blue My ..read more
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Stack Exchange - Puzzling by Mariia Mykhailova - 2d ago
You’ve built pens for flying pigs. Being, well, flying pigs, they pick their own accommodation in full accordance to their preferences. ..read more
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To find which room has money . And how ..read more
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It’s been a while since you started up your Factorio game and you are trying to remember what you had done with your four trains. Use ..read more
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First time ever make a riddle. Forward, I will lead the way. Backward, freedom you shall have. Keep going, I'll hold them back ..read more
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Arrange 20 counters in the form of a PLUS(+), as you can see in the image. Now, how many different ways are there in which four counters ..read more

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