Sudoku 2* vs Killer Sudoku

With 4 difficulty and 1500+ levels, intuitive interface, and all the functions right at your fingertips, this Sudoku game is sure to be your favourite. Sudoku for beginners and advanced players. Whether you'd like to relax or keep the mind active – pass the time in a pleasant way with sudoku puzzle game! Take your favorite game with you wherever you go. Playing sudoku on mobile is as good as with a real pencil and paper.

Killer Sudoku: Quick Notes gets you to the logic faster. Fill every valid candidate in one tap without revealing the solution, then solve calm, adaptive Killer Sudoku grids at your pace. SOLVE AT YOUR PACE Choose from four difficulty levels, from a gentle introduction to a true Expert challenge. Difficulty adapts as you complete puzzles. ALL CANDIDATES IN ONE TAP Automatically add every valid candidate as a note. The app never reveals the answer — it simply removes the routine setup so you can focus on logic. QUICK INPUT Select a digit first, then place it across the grid with fast, precise taps. Quick input and note mode can be used together. EXPLORE DIFFERENT MOVES Save the exact board state as a Branch, try an idea, and return to it whenever you want. CHALLENGE FRIENDS Share a spoiler-free code and let a friend solve the exact same difficulty, cages, and starting grid. No answers are included. SHARE YOUR RESULT Create a polished result card with your time, mistakes, hints, streak, and challenge code using the iOS system share sheet. BUILT FOR FOCUS A calm, modern interface, clear cage sums, candidate highlighting, undo and redo, hints, statistics, themes, and automatic progress saving. Killer Sudoku: Quick Notes works offline and does not collect personal data.