SudokuPrimer 27 - lotsa twins, tips for solving a hard puzzle
SudokuPrimer 47 - tips to master a diabolical puzzle - Sudoku To Go vol 102
SudokuPrimer 32 - tips for solving an easy puzzle - Sudoku To Go vol 101
SudokuPrimer 35 - tips for solving a diabolical puzzle - Sudoku To Go vol 101
Sudoku. Tutorial #27. Many ways to eliminate small numbers.
SudokuPrimer 26 Quadruplets & solving individual cells - Sudoku To Go vol 100
SudokuPrimer 28 - from twins to nonuplets in a hard puzzle
SudokuPrimer 29 - basics for solving containers in an easy puzzle
SudokuPrimer 9 - tricks for solving columns using twins
SudokuPrimer 34 - tips for solving a hard puzzle - Sudoku To Go vol 101
SudokuPrimer 44 - tips for solving an easy puzzle - Sudoku To Go vol 102
SudokuPrimer 25 how to solve a diabolical puzzle - Sudoku To Go vol 100
SudokuPrimer 49 - pseudo-quiz - why does that number go there?
SudokuPrimer 51 - pop-quiz with an easy puzzle - see why each number is placed where it is
SudokuPrimer 18 tutorial for solving a diabolical puzzle - Sudoku To Go vol 99
SudokuPrimer 24 techniques for mastering a hard puzzle - Sudoku To Go vol 100
SudokuPrimer 33 - tips for solving a medium puzzle - Sudoku To Go vol 101
SudokuPrimer 42 - offset and corner sidewalk patterns
SudokuPrimer 61 - pop-quiz on an easy puzzle
SudokuPrimer 22 basics for solving an easy puzzle - Sudoku To Go vol 100