Cody

Jean-Marie Sainthillier

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Jean-Marie Sainthillier submitted a Comment to Problem 2910. Mersenne Primes vs. All Primes

Hello Grant, I don't know if it's a lot of work but it could be a good idea to add a Prime Numbers group 2 with more difficult problems. I think about beautiful Ned's problems (primes ladders, Longest prime diagonal, Twins in a window ...).

on 16 May 2019 at 13:16

Jean-Marie Sainthillier received Sequences & Series I Master badge

on 16 May 2019 at 11:44

Jean-Marie Sainthillier received Indexing III Master badge

on 16 May 2019 at 11:40

Jean-Marie Sainthillier submitted a Comment to Problem 44753. Lights Out 3 - 5x5, 6 moves

@goc3 To be clear, I speak about Solution 1720010 of Alfonso (https://www.mathworks.com/matlabcentral/cody/problems/44755-lights-out-4-5x5-8-moves/solutions/1720010). Incredible no ?

on 14 May 2019 at 18:23

Jean-Marie Sainthillier submitted a Comment to Problem 44753. Lights Out 3 - 5x5, 6 moves

@goc3 With brute-force Alfonso solution you can solve everything, everywhere, every time...

on 14 May 2019 at 14:40

Jean-Marie Sainthillier submitted a Comment to Problem 44752. Lights Out 2 - 5x5, 4 moves

Or maybe add the Lights Out 1 and Lights Out 7 or 8 (for a progression in difficulty) in the Classic Games Puzzles. By the way I thing that problems in Computer Games 1 are more Maze problems (except 2048 Move). Some others Maze problems (One Track Five Lanes of Alfonso) can be added.

on 6 Mar 2019

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