2020-August-31: 
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Masyu Puzzles by KrazyDad, Volume 1
Here are hundreds of free Masyu puzzles suitable for printing. Each Masyu puzzle has only one unique solution.
Here's a tutorial on how to solve Masyu puzzles.
- 6x6 Puzzles
Easy, 4-per-page - 6x6 Puzzles
Med, 4-per-page - 6x6 Puzzles
Hard, 4-per-page - 8x8 Puzzles
Easy, 4-per-page - 8x8 Puzzles
Med, 4-per-page - 8x8 Puzzles
Hard, 4-per-page - 10x10 Puzzles
Easy, 4-per-page - 10x10 Puzzles
Med, 4-per-page - 10x10 Puzzles
Hard, 4-per-page - 10x12 Puzzles
Easy, 4-per-page - 10x12 Puzzles
Med, 4-per-page - 10x12 Puzzles
Hard, 4-per-page - 15x10 Puzzles
Easy, 2-per-page - 15x10 Puzzles
Med, 2-per-page - 15x10 Puzzles
Hard, 2-per-page - 13x15 Puzzles
Easy, 1-per-page - 13x15 Puzzles
Med, 1-per-page - 13x15 Puzzles
Hard, 1-per-page
Click here for volume 2
Don't see the format you prefer? Let me know!
Want to save some trees? Try my Interactive Masyu Puzzles.
Instructions
The finished puzzle will contain a loop made of horizontal/vertical line segments which connect the centers of grid cells.
- Black circles indicate corners.
- White circles indicate straights.
- Black circles must be turned upon, but the loop must travel straight through the next and previous cells in its path.
- White circles must be traveled straight through, but the loop must turn in the previous and/or next cell in its path.
If you need help, try my tutorial, or take a look at the answers page!
Thanks to Simon Tatham, whose 'Pearl' code was the impetus for this collection.