bonanova
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Everything posted by bonanova
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Do you mean any place in the circle? Otherwise,
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Really? Then what would the odd digit be? Or are you advising that zero is an even number? Not to belabor the point, but the OP asks to find a number that fit the criteria. If someone found 23 lying on the sidewalk and gave it to you, they satisfied the OP.
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What I did not do was show - as subhobrata did in the prior post - that the answer is unique. Since the OP asks only to find such [a] number, he should be awarded extra credit.
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I didn't read S3 closely enough. Great!
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Your spoiler 2 is more restrictive than just the 6 touching circles I had imagined. Relaxing the requirement to just the 6 touching circles, your solution could be neatened up to 5 rows of 7 7 8 7 7 Maybe 6x6 even. Nice job.
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Using a different approach, you can obtain a quartic equation. Any progress?
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What you meant. It would apply for close-packed circles.
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Good collaborative job.
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16 minutes. kudos.
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The Mensa Town Council has just created the world's largest digital display in the town square. Thirty-six digits were placed -- logically, of course -- in a huge 6x6 grid. Last night *gasp* four of the digits were stolen. 6 4 7 8 3 7 8 2 5 1 5 6 3 - 8 6 4 8 8 6 5 3 7 6 5 4 7 - - 5 - 8 6 4 7 8 The owner of the display found your Digital Supply ad in the yellow pages and called for your help. You arrive; and, after a moment's thought, you pull four digits from your bag and begin the restoration project. Which four digits did you select? Where did you place them? Why?
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Hats on a death row!! One of my favorites puzzles!
bonanova replied to roolstar's question in New Logic/Math Puzzles
Hi Neptune, and thanks for your comment. The reason for hard options is to answer the problem as stated. The ONLY information each prisoner is given permission to provide is "red" or "black". Sometimes a puzzle appears to have no solution and the answer is a loophole in how it was stated. The clear intention of this puzzle is to find the best solution from a single bit of information. -
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Fair enough. It's more of a math problem than a puzzle.
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Right. I wasn't on your wavelength, and missed. Good one.
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Hats on a death row!! One of my favorites puzzles!
bonanova replied to roolstar's question in New Logic/Math Puzzles
Many have suggested ways to pass information other than the distinction between two responses, but that certainly is not the challenge that the OP poses. It's a fine line sometimes between solving the intended puzzle and finding loopholes. I think in this case, the answer to the harder option is so cool it kind of demeans the puzzle to circumvent it. But it's arguable these suggestions don't violate the terms. -
Both right. My friend has his answer.