Week, 22-28 April, 2007 Puzzle 398: Giovanni Resta, J.K.Andersen, Adam Stinchcombe & Farideh Firoozbakht Posted on Friday, April 27, 2007

Week 14-20, Apr., 2007 Puzzle 128: Jim Fougeron Puzzle 397: Farideh Firoozbakht, J. K. Andersen & Giovanni Resta. Posted on Friday, April 20, 2007

Week 7-13 April, 2007 Puzzle 131: J. K. Andersen, a very interesting result! Puzzle 396: J. C. Rosa Posted on Saturday, April 14, 2007

Week Apr., 1-6, 2007 Puzzle 395 Adam Stinchcombe, Farideh Firoozbakht, J. C. Rosa & J. K. Andersen Conjecture 52: Farideh Firoozbakht Posted on Friday, April 6, 2007