Suguru Sensei

Suguru — also known as Tectonic or Kemaru — is a logic puzzle of pure deduction. Fill every region with the numbers 1 to its size. Two equal numbers may never touch, not even diagonally. That's all the rules there are. ENDLESS PUZZLES, MADE ON YOUR PHONE Every puzzle is generated on your phone, so you never run out. Seven sizes from 5×5 to 12×12, four difficulties from Easy to Expert. EVERY PUZZLE HAS ONE SOLUTION — AND YOU NEVER HAVE TO GUESS Each puzzle is checked by a solver before you see it: one solution, reachable by logic alone. Difficulty is set by which techniques the puzzle needs, not by how many numbers are missing. HINTS THAT TEACH Stuck? A hint shows you where to look first. Ask again for the name of the technique, then why it works — and only at the end the number itself. Take as much help as you want, and no more. • Cell hint: what can be worked out about the cell you…