imo 2012 problem 6 (25): This. Basically the idea is inducting with step 12 ().
fillomino (13): Yes I make many Fillomino puzzles. Subscribe to my blog 😛
Also a few that intrigues me:
fillomino solver (4): Fillomino is NP-complete by reduction to 3SAT. And while computer-generated Fillomino are easy (then why would you need to find solvers for them?), handmade Fillomino are hard for computer if not using heuristics. I don’t think one exists out there yet.
numerical puzzle in math 6 by 100 square (3): Wait what? Grammatically confusing for me. If you want a 6×100 puzzle though I can arrange it.
videos on how to yajilin (1): I don’t have it, although I can make some guide. Also searching Yajilin in YouTube gives this…what? Seriously.
give a formal proof that the kenken puzzle below has exactly one solution. (1): Needs the puzzle.