Machine

Title: Machine

Rating: 2/5

As the final post this year, I'm closing out 2015 with the last pentomino puzzle I've made (the previous three being Five By, Amends, and Tilting).  May your new year be filled with humanity.

The official rules:

• The digits 1, 2, 3, 4, and 5 appear in the above puzzle.
• Each shaded region contains exactly one of each of the digits 1 through 5.
• No row or column can contain more than two appearances of any of the digits 1, 2, 3, 4, 5.
• Squares with multiple colors contain a number that’s used in both of the associated adjacent regions.

Irish Coffee

Title: Irish Coffee

Rating: 3/5

It's unseasonably warm, but today's dreary weather makes this mix (Irish whiskey, hot coffee, and brown sugar, topped with cream) perfect.

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.

Mirage

Title: Mirage

Rating: 2/5

Amid the desert of your Wednesday, this puzzle is a cool drink of water.

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.  

Maze

Title: Maze

Rating: 3/5

Sometimes it's easier to work from the end than from the beginning.

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. 

Caipirinha

Title: Caipirinha

Rating: 1/5

Brazil's national cocktail is made with cachaça, lime, and sugar, served on the rocks.

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.