Puzzle 20 updated An old puzzle (20) has been updated with a reversible prime gotten by Harvey Dubner in 1997. Posted on Thursday, March 29, 2001

Jud McCranie solves part of the Puzzle 131 Jud McCranie solves part of the Puzzle 131, that related to the growing by the left table asked. Posted on Thursday, March 29, 2001

Jean-Charles Meyrignac and the Puzzle 130 Jean-Charles has solved completely (and more than that) the Puzzle 130. Jean Brette shows how to get a prime solution with kown primes in AP. Posted on Thursday, March 29, 2001

Enoch Haga solutions for Puzzle 130 Enoch Haga has produced the first prime solution for the hexagon of the 19 numbers (Puzzle 130) Posted on Sunday, March 25, 2001

Chris Nash and Puzzle 129 Chris Nash as produced his version of the Grundman's proof for the maximum (20) consecutive Harshad numbers. Does anybody has the original Grundman's proof? Posted on Sunday, March 25, 2001

Jud McCranie gets one more solution Jud got a solution for k=8 of the Puzzle 129 Posted on Wednesday, March 14, 2001

Enoch Haga, other solution Enoch Haga got another better solution to Puzzle 92 Posted on Wednesday, March 14, 2001