Level of champion - 250 excellent Sudoku - Very hard - Vol. 16: 50 Killer Argyll - 50 Three beyonddoku - Windowdoku - 50 2 pointsdoku - Hermit - 50 Mo

- 250 exciting puzzles 50 Killer Argyll puzzles with the names: ＂Sums Sudoku＂, ＂Sums Number Place＂, ＂Samunamupure＂, ＂Kikagaku Nampure＂, ＂Sumdoku＂.50 Three beyonddoku - Windowdoku sudoku puzzles with the name: ＂Outside Sudoku＂.50 2 pointsdoku - Hermit sudoku puzzles with the names: ＂ Kropki Sudoku ＂,＂ Dots Sudoku ＂,＂ Sudoku with points＂.50 Hikaku ＂X＂ Diagonal sudoku puzzles with the name: ＂Greater Than Sudoku＂.50 Even - Odd Puzzles - Anti-Knight.- hard and believe the hard version as a champion, the golden prize of extreme Sudoku. - each Sudoku has a unique solution - tasks are conveniently located - large font - develops memory, logical thinking, helps to focus - 2 puzzles on the page - wide internal fields allow you to record your decisions and thoughts- very convenient and practical - expands creative possibilities - perfect gift for all fans of puzzles.An excellent book for free time pastime and mind training. Thank you. Best regards, Andrii Pitenko