: Provides 150 free printable puzzles across three difficulty levels: Easy (5x5), Medium (7x7), and Hard (9x9). Puzzles are formatted as single-page PDFs with separate solution sheets. Visit Memory Improvement Tips .
: Features smaller 4x4 grids specifically designed for beginners or classroom use. These include simplified versions that focus on teaching the basic mechanics of inequality logic. Find them at Math = Love . Futoshiki Printable Puzzles
: Offers thousands of free puzzles organized into volumes. Each booklet contains nine puzzles with solutions at the back, ranging from size 4 to 9. Access them at KrazyDad's Futoshiki page . : Provides 150 free printable puzzles across three