Riad, thanks for organizing a great contest!
And congratulations to kiwijam for a perfect win!!!
Thanks also to the LMI team for running the event.
I had not participated in this contest for a few years, but I really enjoyed it.

I especially like prob. 7 and 12.
I didn't have time to fix my solution for 12 because it was the last day of the contest when I realized that the length of lines was important.I regret that.
Anyway, I think prob.12 is a really good optimization setup!

I like optimization puzzles very much, and I am very happy to see the April Contest where I can enjoy them.
I'm planning to hold an optimization contest at a local site in Japan.
I hope that the fun of optimization will spread more and more.

Edited by SP1 2025-04-29 10:13 PM

Thanks a lot to everyone!
Congratulations to James, Takuma and Paul!
Success in optimization problems in 2025 earned more points than ever. James had a very impressive victory. Only two participants managed to score points in all optimizations. Takuma, great result! Interestingly written in the two posts above. I wish Takuma success in organizing the optimization contest in Japan.
There were questions like: Why ban word overlapping in Hitori? I think through the answer format so that it is convenient for the organizers. A lot of parentheses can prevent Deb from forming grids with solutions. For clarity, it is better to place the parentheses sequentially. Thanks to the LMI team, Deb and Prasanna, and a special thanks to Kota for the long-term support!

Thanks Riad and well done James! Are there solutions available to the puzzles? I had a tough time with some of them and was hoping to work through them with the solutions.