Puzzling
RobPratt
  • Member for 1 year, 11 months
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  • Senior R&D Manager, SAS Institute Inc.
  • Ph.D. in Operations Research, The University of North Carolina at Chapel Hill
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All Questions Answers
Votes Newest
27
Social distancing in a 5x5 room
Nov 4 '21
25
A COVID-19 puzzle: How large a class do you need to fit 30 pupils?
May 22 '20
24
What node does 11 point to?
Apr 22 '20
20
Three queens and two rooks covering the chess board... again!
Feb 8 '21
20
A rook's tour of the chessboard
Jan 29 '20
19
How many ways can you find the word DIAMOND in this diamond?
May 26 '20
19
A Rook's Territory in the Chessboard
May 20 '20
16
The Greenhouse Problem
Feb 1 '21
15
A Perfect Diamond of Numbers
Sep 16 '21
15
Numerical Boggle
Jul 16 '20
Top network posts
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53
What is the optimal number of dice to roll a Yahtzee in one roll?
38
What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?
23
Is there a generating function for any finite sequence of random numbers?
19
How to linearize the product of two binary variables?
19
Listing all posets on 9 points?

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