Cryptex vs Suguru

Cryptex is a code-breaking game for one player. It is based on Mastermind, one of the most famous classical board games. The logics and game rules are very similar to an earlier invented game called Bulls and Cows, played with a pencil on paper. The app generates a random code with 4, 5 or 6 letters, and your task is to guess the correct combination as quickly as possible. The game is simple, fun and addictive. With every try you get two pieces of information: 1. CL - Correct Letter - the total number of correctly guessed letters in the entered combination. 2. CLP - Correct Letter and Position - the total number of correctly guessed letters with correct positions in the entered combination. Happy code-breaking!

Place a number in every little room. The same number can never touch — not up, down, across, or diagonally. That's the whole rule. And it runs surprisingly deep. Suguru (also known as Tectonic) is a number-logic puzzle played on a grid split into rooms. A room of size n holds 1…n, once each. And no two matching numbers may sit next to each other in any of the eight directions. That one twist — no diagonal neighbours either — gives Suguru a softer, different feel from sudoku. Best of all, every Suguru here comes with one promise: it's always solvable by pure logic, with no guessing. No placing a number on a hunch and watching it all collapse. Just the quiet satisfaction of narrowing things down, one certain square at a time. ■ Features A logic rule all its own: no matching neighbours, diagonals included Every puzzle solvable by logic — zero guessing, never stuck Four sizes: 5×5, 6×6, 7×7, 8×8 A fresh Daily puzzle, with a solving streak Pencil notes, hints, and undo Stats: best times, streaks, and solves by difficulty A calm design in traditional Japanese colours English and Japanese Fully offline. No account needed ■ Great for you if… You love sudoku but want a fresh next puzzle You'd rather deduce than guess You want a quiet way to use your mind in spare minutes You prefer calm, uncluttered puzzle apps You'd like a small daily brain workout to keep up ■ Privacy & peace of mind Suguru runs fully offline, with no server. Your records stay on your device only — no account, no sign-in. Ads are served non-personalized (no tracking).