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A
new puzzle every Saturday. Solutions one week
later.
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>>>>Basic Stats<<<<
Jan-31-2026
1446
weeks, 1476 pages &
10115 days
27 years 8 Months 8days
Since May 23 1998 |
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Latest
ten
news |
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No. |
Date |
Puzzle about |
Solvers |
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10 |
Jan-30-26 |
Puzzle 1255
Puzzle 1254 |
Michael Branicky, Gennady Gusev, Oscar Volpatti, Emmanuel
Vantieghem
Jeff Heleen |
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9 |
Jan-23-26 |
Puzzle 1254
Conjecture 109 |
Jeff Heleen, Carlos Rivera
Alessandro Casini, Emmanuel
Vantieghem |
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8 |
Jan-16-25 |
Conj.109 |
Emmanuel Vantieghem |
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7 |
Jan-9-26 |
Puzzle 1253 |
Ivan Ianakiev, Emmanuel Vantieghem |
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6 |
Dec-26-25 |
Puzzle 1251 |
Gennady Gusev, Emmanuel Vantieghem, Simon Cavegn, Oscar Volpatti |
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5 |
Dec-19-25 |
Puzzle 1250 |
Emmanuel Vantieghem |
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4 |
Dec-12-25 |
Puzzle 1249
Puzzle 44 |
Jeff Heleen, Vicente Felipe Izquierdo
Gennady Gusev |
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3 |
Dec-5-25 |
Puzzle 1248 |
Adam Stinchcombe, Emmanuel Vantieghem, Michael Branicky, Gennady
Gusev, Oscar Volpatti, Simon Cavegn
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2 |
Nov-21-25 |
Puzzle 21
Problem 68
Puzzl2 1246 |
Simon Cavegn, found that the current record-Mersenne Prime
integer, is a Happy integer too.
Arkadiusz Wesolowski
found a smaller Brier number, in the category of "primes used in
both sets (A and B) is 3."
Paul Cleary |
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1 |
Nov-14-25 |
Puzzle 1245
Puzzle 1210
Puzzle 36 |
Ivan Ianakiev, Emmanuel Vantieghem
Claudio Meller
Carlos Rivera |
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