Chocolate Fix might just fit the bill...or fix your gift list! :) My 9yo received this for his birthday and it's been used and loved by him, his teen brother, and my husband. The 8 and up designation makes sense; I think it would be a bit difficult for younger kids.
A perfect blend of fun and logical deduction, a single player must manipulate 9 chocolate game pieces according to the clues given on puzzle cards to come up with the correct arrangement of chocolates. If you play Sudoku, you'll recognize similarities. (For more details, the ThinkFun site --click on "how to play"--features a visual sequence showing how the game is played). Forty puzzle cards are included in a little spiral-bound flip-it book and are ranked by difficulty: beginner, intermediate, advanced, and expert. The set is stored in a drawstring bag for easy traveling.
I grabbed the photo from the ThinkFun website as our game edition (last year's) didn't come with the shape and color placeholders. This is an excellent addition as it would make it much easier to keep track of what is known vs. what is unknown.
I love the problem solving inherent in the game. This would make a wonderful Math Station/"early finisher" activity for a single student at school or Math Workbox in homeschool. Look at this article on using it to teach geometry.
Over the next few days, I'll be highlighting some of our favorite math games and books. Holiday shopping begin! :)
Disclaimer: I bought my own game and have no affiliation with ThinkFun. If you order from Amazon, all commissions go toward foster care through Grace and Hope at no additional cost to you. THANK YOU!