Bored with crosswords and sudoku puzzles? Well, try your hands at a new type of puzzle: KenKen logic puzzles.
Invented by Japanese math teacher Tetsuya Miyamoto, KENKEN allows you to test your puzzle acumen and improve your math skills at the same time. KEN-KEN (kenken), KenDoku or Mathdoku is a style of arithmetic and logical puzzles sharing several characteristics with sudoku.
Watch this video tutorial series to learn how to solve a 9x9 KenKen puzzle without operation signs. The video from Math Mojo will also teach you the rules of KenKen, and then they walk you through solving the 9x9 Ken-Ken puzzle. This puzzle isn't for newbies; a 9x9 is fairly advanced, but you'll see exactly how to complete in this video series. Learn more.
**These videos are for very advanced KenKen. If you are just beginning, take a look at them to show you you can learn to get to an advanced level. But don't get discouraged if you don't understand what is going on! Remember, this is the advanced level.
(1) Part 1 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (2) Part 2 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (3) Part 3 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (4) Part 4 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (5) Part 5 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (6) Part 6 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (7) Part 7 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (8) Part 8 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (9) Part 9 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (10) Part 10 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (11) Part 11 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (12) Part 12 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (13) Part 13 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (14) Part 14 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (15) Part 15 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (16) Part 16 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (17) Part 17 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (18) Part 18 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (19) Part 19 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (20) Part 20 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (21) Part 21 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (22) Part 22 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (23) Part 23 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (24) Part 24 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (25) Part 25 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs, (26) Part 26 of 26 - How to Solve a 9x9 KenKen puzzle without operation signs
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You have a mistake in Step 5, in the 630 cage. You say that there has to be a 9 in there, but previously you said there had to be a 9 in the 17 cage in the same row. The factors for 630 have to be 7 x 5 x 6 x 3.
You messed up in part 10/26. Around 1:26 you erase the 4 in the 5 cage stating that there is no 1 so the 4 cannot exist. However the 4 can combine with the 9 to give you 5 which changes the following assumption that 4 must be in the top right corner
3 Comments
You have a mistake in Step 5, in the 630 cage. You say that there has to be a 9 in there, but previously you said there had to be a 9 in the 17 cage in the same row. The factors for 630 have to be 7 x 5 x 6 x 3.
You messed up in part 10/26. Around 1:26 you erase the 4 in the 5 cage stating that there is no 1 so the 4 cannot exist. However the 4 can combine with the 9 to give you 5 which changes the following assumption that 4 must be in the top right corner
Sorry I messed up... meant around 1:56
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