2026-January 1st 🥳 Happy New Year from krazydad! 🎉
Let's hope for a better year than 2025! 🤞
Latest puzzles and tutorials!
- 📱 Lime Sudoku (new puzzle!)
- 📱 Variety Lime Sudoku (my current fave)
- 📱 Hex Sudoku (now interactive, meh)
- 🖨️ Sudoku (4 new volumes)
- 🖨️ Jigsaw Sudoku (4 new volumes)
- How do I make the puzzles?
- Train TracksTutorial
- Vermicelli Tutorial
- Lime Sudoku Tutorial
Enjoy!
Tough Jigsaw Sudoku, Volume 4
Each booklet contains a collection of eight different puzzles, 1-per-page, with a page of hints and a page of answers in the back. The booklets are ordered by ascending difficulty -- the puzzles in book 100 are much harder than the puzzles in book 1. All these puzzles have a single unique solution.
These puzzles are in PDF format and can be printed in your web browser or with a standalone PDF reader.
Want to save some trees? Solve the puzzles right here, in your browser.
Download all 800 puzzles and save some time! (4-per-page format):
Or download individual booklets:- Book 1
- Book 2
- Book 3
- Book 4
- Book 5
- Book 6
- Book 7
- Book 8
- Book 9
- Book 10
- Book 11
- Book 12
- Book 13
- Book 14
- Book 15
- Book 16
- Book 17
- Book 18
- Book 19
- Book 20
- Book 21
- Book 22
- Book 23
- Book 24
- Book 25
- Book 26
- Book 27
- Book 28
- Book 29
- Book 30
- Book 31
- Book 32
- Book 33
- Book 34
- Book 35
- Book 36
- Book 37
- Book 38
- Book 39
- Book 40
- Book 41
- Book 42
- Book 43
- Book 44
- Book 45
- Book 46
- Book 47
- Book 48
- Book 49
- Book 50
- Book 51
- Book 52
- Book 53
- Book 54
- Book 55
- Book 56
- Book 57
- Book 58
- Book 59
- Book 60
- Book 61
- Book 62
- Book 63
- Book 64
- Book 65
- Book 66
- Book 67
- Book 68
- Book 69
- Book 70
- Book 71
- Book 72
- Book 73
- Book 74
- Book 75
- Book 76
- Book 77
- Book 78
- Book 79
- Book 80
- Book 81
- Book 82
- Book 83
- Book 84
- Book 85
- Book 86
- Book 87
- Book 88
- Book 89
- Book 90
- Book 91
- Book 92
- Book 93
- Book 94
- Book 95
- Book 96
- Book 97
- Book 98
- Book 99
- Book 100
Out of tough puzzles? Here's 800 more!.