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P.-S. Park's user avatar
P.-S. Park's user avatar
P.-S. Park's user avatar
P.-S. Park
  • Member for 10 years, 7 months
  • Last seen more than a week ago
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4
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41
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13
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2
Posts
4
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2
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22
Posts
49
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2
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5
Posts
11
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2
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2
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4
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2
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2
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4
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16
Posts
36
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Top posts
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32
A mathematician's coffee alphametic
Jan 29, 2015
24
9 digits in vertical arrangement
Aug 6, 2023
22
Sum of secret numbers is 101
Aug 17, 2017
22
Concatenation divisible by 19
Jul 17, 2018
19
Painting a chessboard
Sep 24, 2020
18
Let's change CORONA!
Nov 1, 2020
17
180 degree rotation matchstick equality
Jan 25, 2015
16
Product and Sum
Jan 25, 2015
14
Cross-number puzzle
Sep 28, 2018
14
Exchange pawns (sliding block puzzle)
Mar 8, 2023
Top network posts
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15
Rep-tiles of order 4 and order 9
11
Where did the German term "Spur" of a matrix come from?
11
Curious properties of 79 and 859 in sums of two Fibonacci numbers
10
Accumulators in TikZ
9
Drawing \mapsto arrow in TikZ