Jigsaw Sudoku vol. 4: 160 very twisted puzzles

The subtitle says "very twisted" and it delivers. By Volume 4, DJAPE has refined his Jigsaw Sudoku designs to be more creative and more challenging than the earlier volumes. The irregular regions are twistier, the solving paths are less obvious, and the puzzles reward solvers who have developed genuine fluency with the Law of Leftovers technique.

160 puzzles across multiple difficulty levels. Each puzzle has its own unique jigsaw region design...