Title: Balance
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Rating: 3/5
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If you look at it just right, you'll see how the title of the puzzle arises from how the regions appear as blocks built upon and supporting each other.
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must multiply to the indicated product.
- Squares with multiple colors contain a number
that’s used in the product for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.
Title: Petri Dish
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Rating: 5/5
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This is one of the hardest puzzles I've created, and it's essential that you use the last rule from the list below, an addition from other sum puzzles.
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must add to the indicated sum.
- Squares with multiple colors contain a number
that’s used in the sum for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.
- Each number that appears in the five starting cells is the average of the entries in the edge-adjacent four cells (e.g., the 7 in row 5, column 5 (denoted (5,5)) is the average of the entries in cells (4,5), (6,5), (5,4), and (5,6)).
Title: Piña Colada
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Rating: 2/5
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Made with white rum, coconut cream, pineapple juice, and garnished with a maraschino cherry, this drink is pretty much the antithesis of anything I would want to drink. Nevertheless, the puzzle goes down easy.
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must add to the indicated sum (denoted by +) or multiply to the indicated product (denoted by *).
- Squares with multiple colors contain a number
that’s used in the sum/product for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that repetition doesn't violate the first rule.
Title: Brainfreeze
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Rating: 3/5
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As I've mentioned before, conversations with Laura Taalman (of, among other things, Brainfreeze Puzzles) sparked some ideas about the puzzle variations that make up this blog. Here's to inspiration.
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must multiply to the indicated product.
- Squares with multiple colors contain a number
that’s used in the product for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.
Title: Countdown
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Rating: 3/5
|
There is renewed interest in space travel of late. Perhaps the astronauts could take along some of these puzzles for the downtime?
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must add to the indicated sum.
- Squares with multiple colors contain a number
that’s used in the sum for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that doesn't violate the first rule.
Title: Bacardi Cocktail
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Rating: 2/5
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Celebrate the new year with this mix of Bacardi white rum, lemon juice, grenadine syrup, garnished with a lime.
The official rules:
- The
digits 1 through 9 appear in each row and each column exactly once.
- Digits
in each shaded region must add to the indicated sum (denoted by +) or multiply to the indicated product (denoted by *).
- Squares with multiple colors contain a number
that’s used in the sum/product for adjacent regions of each of those colors.
- Remember: numbers can repeat within a shaded region if that repetition doesn't violate the first rule.
