Two "hard cases" solved Carlos Rivera has found solution to two "hard cases" of the Puzzle 78 Posted on Friday, January 28, 2000

Puzzle 78, solved? Jim Howell & Carlos Rivera provided different elements to produce (maybe) the solution to Puzzle 78. Do you agree? Posted on Thursday, January 27, 2000

Wilfrid Keller's new contributions to Brier numbers Wilfrid Keller has sent (17/01/2000) a letter that contains very interesting contributions to Brier numbers in both approaches: since the Problem 29 & since the Problem 30. I have merged the Keller's letter with an answer-comment email from Chris Nash from the same day, because he adds several important questions to the subject that perhaps may produce smaller Brier numbers. In any of these pages the entire & merged letter is downloadable. Posted on Monday, January 17, 2000

Yves Gallot 3rd smaller Brier number Yves Gallot has found (17/01/2000) his 3rd & smaller Brier number, now a 27 digits large one!!!... See Problem 29 Posted on Monday, January 17, 2000

A second and smaller Brier number by Yves Gallot Yves Gallot has discovered (16/01/2000) another and smaller Brier number. This one is 28 digits large against the previous record 30 digits large obtained by himself one day before. See Problem 29 Posted on Sunday, January 16, 2000

references to Conjecture 16 Patrick De Geest sent several very interesting references related to the Conjecture 16 Posted on Sunday, January 16, 2000

Puzzle 72 item 2 Felice Russo sent (10/01/2000) another collaboration to item 2 of Puzzle 72 Posted on Sunday, January 16, 2000

A smaller Brier number by Yves Gallot Yves Gallot has discovered (15/01/2000) a smaller Brier number. This one is 30 digits large against the previous record 41 digits large obtained by Eric Brier the 28/9/98.See Problem 29 Posted on Saturday, January 15, 2000

Problem 31, question 1 Jim Howell has solved (4/1/2000) the question 1 of the Problem 31. According to this result, definitively Graham did not found in 1964 a Fibonacci all composites sequence. Posted on Tuesday, January 4, 2000

Problem 28 Louis Marmet has sent a methodic way of finding solution for a sequence 16 members of this type. As fas as I understood his answer for the question 2 of this puzzle, Marmet also solves the question 1. Posted on Tuesday, January 4, 2000

Our new guestbook Please sign our guestbook and leave your comments or suggestions about the look and feel of our new website. Thanks! Posted on Sunday, January 2, 2000