Ripples II

Title: Ripples II

Rating: 2/5

A sequel to a puzzle that was released back in August last year.

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.  

Hook

Title: Hook

Rating: 3/5

Time may be following you (inside a crocodile), but the extra rule at the end of the list should help you succeed.

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. 
• The digits 1 through 9 appear in each 3X3 grid exactly once.

Zombie

Title: Zombie

Rating: 3/5

You might feel like the walking dead after consuming this mix of white rum, golden rum, dark rum, apricot brandy, and pineapple juice.  In fact, the alternate title for the drink is "skull-puncher."  Hopefully not so with the puzzle.

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.

Carnival

Title: Carnival

Rating: 4/5

Carnivale starts in Rio on February 5 this year, so this puzzle will help you enjoy the ride if you aren't in South America right now.

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.