Winter Logic Puzzles — Holiday Printable Pack (60 Nonograms, X-Sudoku & Sum Cross, PDF Letter & A4, Large Print)

60 winter logic puzzles — and every one has exactly one solution.

A seasonal printable pack for November through January. Fresh puzzles (not reused from Logic Puzzle Pack Vol. 1 or Vol. 2). Three kinds: 20 Nonograms, 20 X-Sudoku, 20 Sum Cross. Easy to hard. Letter + A4. Large-print edition. Answer key PDF. CSV index.

Every puzzle checked by the generator solver and an independent SAT solver. Zero solution-hash overlap with Vol. 1 and Vol. 2.

Licence: personal and classroom use. Please don't resell or re-upload the files.

AI disclosure: The puzzles are created and verified by deterministic computer algorithms (procedural generation and exact solvers), not by generative AI. Written instructions/README/description drafted with AI assistance and reviewed. Generator/solver code written with AI coding assistance.