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Post: Blog2 Post

#53: Puzzle Spotlight: KenKen

Writer: Jacob Cohen
Jacob Cohen
Jul 2, 2021
1 min read

Hello, and welcome. With these three puzzles, the first year of Puzzles for Progress is complete! (I get that this is Issue #53, not #52–since I published Issue #1 on a Tuesday, and then on Fridays from then on.) So that's quite a milestone!


In other milestone news, Puzzles for Progress has just hit 69 subscribers! 69 squared (4,761) and 69 cubed (328,509) together comprise all the digits 0 to 9, exactly once. It's the only number with this property. Also, if you take the factors of 9, the factors of 8, and so on down to 1, and add them all up, you get 69. This makes it a very nice number! (I learned these facts from 3Blue1Brown's live streams.)


In any case, this week, I'm putting a classic puzzle, KenKen, in the spotlight, a richly deserved spot. It's such a fun type.


Print the puzzles out using the following links:


Alternatively, here they are all on one page: tinyurl.com/pfp-53


Or solve the puzzles online using the following links:


And, as always, the answers: tinyurl.com/pfp-53-answers


Next week: Word Ladder; Mirrored Galaxy (a Mirrored Gallery-Star Battle hybrid); Diamond Capsules


176 Comments


online tutoring support
4 hours ago

There is something approachable about discussing making online tutoring sessions effective through situations people can actually picture. A clear question before a session can help the learner use the available time well. It makes me curious about the practical side of online tutoring support. I would be interested in a simple example, because it is often the ordinary details that make an idea memorable. How would you check that a tutoring explanation has actually become understandable?

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parenting support discussions
14 hours ago

Considering sharing the everyday questions of parenthood, I keep coming back to the difference between knowing about an idea and putting it into practice. Small concerns can be easier to discuss when parents hear that others have similar questions. For me, that is a useful way into the broader subject of parenting support discussions. I am more curious about the process than a polished result, because the steps in between are usually where questions appear. What makes a parenting discussion feel helpful rather than competitive?

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management skills training
a day ago

What draws my attention to building management skills through practical situations is the possibility of making an unfamiliar subject feel closer to everyday life. A realistic scenario can expose how different decisions affect a team's work. I would keep that thought nearby when looking for ideas about management skills training. I am more curious about the process than a polished result, because the steps in between are usually where questions appear. Which situations are most useful for practising management before taking responsibility for a team?

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jd 88
a day ago

Đọc xong mới hiểu vì sao KenKen lại được coi là đối thức của Sudoku: cùng một lưới ô vuông, nhưng thay vì điền số từ 1 đến 9 thì lại nhân và chia, khiến phải nghĩ nhiều hơn một bước. Điều tôi thích trong bài là tác giả không chỉ giải thích luật chơi mà còn nói rõ vì sao một bài toàn trông vô lý lúc đầu rồi tự nhiên trở nên rõ ràng. Tối đi làm về tôi hay in ra một bản kẹp lại để giải lúc chờ xe buýt. Một người bạn từng kể mỗi khi rảnh tay là vào chơi vài ván ở jd 88 cho đỡ ngơi đầu, nghe vậy thấy cũng giống cái…

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33WIN
2 days ago

Bài viết về Kenken khiến tôi dừng lại lâu hơn dự kiến. Nhìn lướt qua thì như bảng số, chơi rồi mới thấy phải suy luận từng bước. Tôi nhớ có lần đợi 33WIN xe buýt, mở điện thoại chơi game bài đổi thưởng cho đỡ buồn, lúc ấy có nghe nhắc tới 33WIN. Đọc bài xong, tôi nghĩ mấy trò chơi dạng này giống nhau ở chỗ phải nghĩ, không chỉ đoán. Chơi gì cũng vậy, hiểu luật rồi mới thấy thích.

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