Nikoli’s Pencil Puzzle
Note: This game is also titled Sudoku: The Puzzle Game Collection .
Extra puzzles
Successfully complete the indicated number and type of puzzles to unlock the corresponding set of bonus puzzles:
Akari
- Easy 6 to 10: 3 Easy puzzles
- Easy 11 to 15: 8 Easy puzzles
- Easy 16 to 20: 13 Easy puzzles
- Easy 21 to 25: 18 Easy puzzles
- Easy 26 to 30: 23 Easy puzzles
- Easy 31 to 35: 28 Easy puzzles
- Easy 36 to 40: 33 Easy puzzles
- Hard 6 to 10: 3 Hard puzzles
- Hard 11 to 15: 8 Hard puzzles
- Hard 16 to 20: 13 Hard puzzles
- Hard 21 to 25: 18 Hard puzzles
- Hard 26 to 30: 23 Hard puzzles
- Normal 6 to 10: 3 Normal puzzles
- Normal 11 to 15: 8 Normal puzzles
- Normal 16 to 20: 13 Normal puzzles
- Normal 21 to 25: 18 Normal puzzles
- Normal 26 to 30: 23 Normal puzzles
- Normal 31 to 35: 28 Normal puzzles
- Normal 36 to 40: 33 Normal puzzles
Shikaku
- Easy 6 to 10: 3 Easy puzzles
- Hard 6 to 10: 3 Hard puzzles
- Hard 11 to 15: 8 Hard puzzles
- Hard 16 to 20: 13 Hard puzzles
- Hard 21 to 25: 18 Hard puzzles
- Hard 26 to 30: 23 Hard puzzles
- Normal 6 to 10: 3 Normal puzzles
- Normal 11 to 15: 8 Normal puzzles
- Normal 16 to 20: 13 Normal puzzles
- Normal 21 to 15: 18 Normal puzzles
- Normal 26 to 30: 23 Normal puzzles
- Normal 31 to 15: 28 Normal puzzles
- Normal 36 to 40: 33 Normal puzzles
- Normal 41 to 15: 38 Normal puzzles
- Normal 46 to 50: 43 Normal puzzles
- Normal 51 to 15: 48 Normal puzzles
- Normal 56 to 60: 53 Normal puzzles
Sudoku
- Easy 6 to 10: 3 Easy puzzles
- Easy 11 to 15: 8 Easy puzzles
- Easy 16 to 20: 13 Easy puzzles
- Easy 21 to 25: 18 Easy puzzles
- Easy 26 to 30: 23 Easy puzzles
- Easy 31 to 35: 28 Easy puzzles
- Easy 36 to 40: 33 Easy puzzles
- Easy 41 to 45: 38 Easy puzzles
- Easy 46 to 50: 43 Easy puzzles
- Easy 51 to 55: 48 Easy puzzles
- Easy 56 to 60: 53 Easy puzzles
- Easy 61 to 65: 58 Easy puzzles
- Easy 66 to 70: 63 Easy puzzles
- Easy 71 to 75: 68 Easy puzzles
- Easy 76 to 80: 73 Easy puzzles
- Hard 6 to 10: 3 Hard puzzles
- Hard 11 to 15: 8 Hard puzzles
- Hard 16 to 20: 13 Hard puzzles
- Hard 21 to 25: 18 Hard puzzles
- Hard 26 to 30: 23 Hard puzzles
- Hard 31 to 35: 28 Hard puzzles
- Hard 36 to 40: 33 Hard puzzles
- Hard 41 to 45: 38 Hard puzzles
- Hard 46 to 50: 43 Hard puzzles
- Hard 51 to 55: 48 Hard puzzles
- Hard 56 to 60: 53 Hard puzzles
- Hard 61 to 65: 58 Hard puzzles
- Hard 66 to 70: 63 Hard puzzles
- Hard 71 to 75: 68 Hard puzzles
- Hard 76 to 80: 73 Hard puzzles
- Hard 81 to 85: 78 Hard puzzles
- Hard 86 to 90: 83 Hard puzzles
- Normal 6 to 10: 3 Normal puzzles
- Normal 11 to 15: 8 Normal puzzles
- Normal 16 to 20: 13 Normal puzzles
- Normal 21 to 25: 18 Normal puzzles
- Normal 26 to 30: 23 Normal puzzles
- Normal 31 to 35: 28 Normal puzzles
- Normal 36 to 40: 33 Normal puzzles
- Normal 41 to 45: 38 Normal puzzles
- Normal 46 to 50: 43 Normal puzzles
- Normal 51 to 55: 48 Normal puzzles
- Normal 56 to 60: 53 Normal puzzles
- Normal 61 to 65: 58 Normal puzzles
- Normal 66 to 70: 63 Normal puzzles
- Normal 71 to 75: 68 Normal puzzles
- Normal 76 to 80: 73 Normal puzzles
- Normal 81 to 85: 78 Normal puzzles
- Normal 86 to 90: 83 Normal puzzles
- Normal 91 to 95: 88 Normal puzzles
- Normal 96 to 100: 93 Normal puzzles
- Normal 101 to 105: 98 Normal puzzles
- Normal 106 to 110: 103 Normal puzzles
- Normal 111 to 115: 108 Normal puzzles
- Normal 116 to 120: 113 Normal puzzles