Over 100 unique Sudoku game types!!! Including: Killer, Jigsaw, Skyscrapers, 16x16, Samurai, Kropki, Word, Duplex and many more! • Easy, Medium, Hard and Expert difficulties for every game type! • Tons of puzzles guarenteed to have only one solution! • Hints to help when you're stuck, or automatically fill all notes! • Create Savepoints for when you want to make a guess! • Smart notes are automatically removed when placing another cell's correct number! • Easy note taking! Select multiple cells at once! • Zoom in and out of any puzzle to see the numbers better! • Leaderboard and achievements! • Completely customize the game's appearance to your liking! • Current Game Types: 0-9 123 147 2-3-4 4-5 Anti-Knight Anti-White Knight Jigsaw Anti-X Ascension Asterisk Baby Big Big Krychle Binary Bishop Black Knight Blackout Blind Killer Boxless Brick Centers Circular Circular Box Clock Color Cube Deficit Diamond Digital Disjointed Disjointed Irregular Duplex Difference Duplex Plex Duplex Sum Even Extra Space Fractured Spiral Fractured Staircase Fractured Target Fractured Web Fractures Frame Giant Giant Killer Giant Kropki Greater Than Killer Greater Than Killer Samurai Greater Than Samurai Hexadoku Hexagon Hexagram Jigsaw Jigsaw Skyscrapers Killer Killer Jigsaw Killer Modulo Killer Parity Killer Product Killer Samurai Killer Skyscrapers Kropki Krychle Layers Lean Box Lean Gear Lean Wheel Lean Window Little Killer Lucky Seven Mathdoku MinMax Missing Musketry Nonconsecutive Nonconsecutive Circular Odd Odd Even Big Small Outside Parquet Square Parquet Twist Pencil Mark Pentagram Pseudoku Quadruple Regular Sandwich Samurai Samurai 9-Grid Samurai Kropki Scatter Sigma Skyscrapers Small Snowflake Staircase Star Suguru 5x5 Surplus Swap Symbol Tape Tight Fit Tiny Tiny Jigsaw Triangle Tricky Trinary Twin Boxes Twodoku Vudoku Weave 8x8 White Knight White Knight Jigsaw White Knight X Windoku Word X