Difficult Sudoku Five Logic Puzzles (Vol 1)

Chapter 10: Twenty-Two Difficult (DiffLev 10) Sudoku-5C Puzzles (numbers 169-190)

• Step-by-step instructions for solving Puzzle 169, (19/25)   Diff: 10/21.1221.1243
• Step-by-step instructions for solving Puzzle 170, (20/25)   Diff: 10/32.1112.2422
• Step-by-step instructions for solving Puzzle 171, (20/25)   Diff: 10/31.2111.2432
• Step-by-step instructions for solving Puzzle 172, (20/25)   Diff: 10/31.1122.1243
• Step-by-step instructions for solving Puzzle 173, (20/25)   Diff: 10/31.1111.1344
• Step-by-step instructions for solving Puzzle 174, (20/25)   Diff: 10/22.2A11.2342
• Step-by-step instructions for solving Puzzle 175, (20/25)   Diff: 10/22.2111.1244
• Step-by-step instructions for solving Puzzle 176, (20/25)   Diff: 10/22.1A11.1452
• Step-by-step instructions for solving Puzzle 177, (20/25)   Diff: 10/21.2111.2244
• Step-by-step instructions for solving Puzzle 178, (20/25)   Diff: 10/21.1A11.1453
• Step-by-step instructions for solving Puzzle 179, (20/25)   Diff: 10/21.1A11.1453
• Step-by-step instructions for solving Puzzle 180, (20/25)   Diff: 10/21.1112.4341
• Step-by-step instructions for solving Puzzle 181, (20/25)   Diff: 10/21.1112.3432
• Step-by-step instructions for solving Puzzle 182, (20/25)   Diff: 10/12.2112.2432
• Step-by-step instructions for solving Puzzle 183, (20/25)   Diff: 10/11.A211.3541
• Step-by-step instructions for solving Puzzle 184, (20/25)   Diff: 10/11.2A12.2424
• Step-by-step instructions for solving Puzzle 185, (20/25)   Diff: 10/11.1A12.2344
• Step-by-step instructions for solving Puzzle 186, (20/25)   Diff: 10/11.1112.3622
• Step-by-step instructions for solving Puzzle 187, (20/25)   Diff: 10/11.1112.3622
• Step-by-step instructions for solving Puzzle 188, (21/25)   Diff: 10/32.2A11.2342
• Step-by-step instructions for solving Puzzle 189, (21/25)   Diff: 10/32.2A11.2342
• Step-by-step instructions for solving Puzzle 190, (21/25)   Diff: 10/32.2A11.2342