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It's a brilliant new little math/logic puzzle on the New York Times website where you have to fill either a 4x4 or 6x6 grid with the right numbers. Here are the rules:
1. 4x4 grids must be filled with the numbers 1-4.
2. 6x6 grids must be filled with the numbers 1-6.
3. A number cannot repeat within the same row.
4. A number cannot repeat within the same column.
5. Each heavy outlined area (called a "cage") must be filled with numbers that make the mathematical equation correct. (For example, in a 6x6 grid, if you have a cage comprising two squares, and "11+" is written inside, you must fill in the squares with a 5 and a 6 in some order because 5+6 is the only way to make 11. If you have a cage comprising two squares in a 4x4 grid, and "3-" is written inside, you must fill the squares with 4 and 1 in some order because 4-1 is the only way to make 3.)
New puzzles posted every day -- try not to get addicted!
1 comment:
Great blog. We have a lot in common. I spent lots of time in Switzerland as an exchange student in Germany, then as a busker (magician).
I'm also into kenken.
I've made some free videos about how to start solving a basic 4x4 Kenken, as well as an advanced 9x9 KenKen in which the operation signs are not given.
You can check them out at:
http://mathmojo.com/kenkenBy the way, as you know, there is no way not to get addicted to kenken!
I hope you're having a great time in Switzerland!
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