Variations on Junior Sudoku Logic Puzzles (Vol 1) 
 Chapter 15: Twenty-Four Medium Sudoku-5-Spot Puzzles (numbers 241-264) 
 
-  Step-by-step instructions for solving  Puzzle 241, (18/25)   Diff: 5/4.1445
 -  Step-by-step instructions for solving  Puzzle 242, (19/25)   Diff: 5/5.3254
 -  Step-by-step instructions for solving  Puzzle 243, (20/25)   Diff: 5/4.3463
 -  Step-by-step instructions for solving  Puzzle 244, (20/25)   Diff: 5/2.3564
 -  Step-by-step instructions for solving  Puzzle 245, (20/25)   Diff: 5/2.3366
 -  Step-by-step instructions for solving  Puzzle 246, (21/25)   Diff: 5/3.5472
 -  Step-by-step instructions for solving  Puzzle 247, (21/25)   Diff: 5/1.4673
 -  Step-by-step instructions for solving  Puzzle 248, (18/25)   Diff: 6/22.1355
 -  Step-by-step instructions for solving  Puzzle 249, (18/25)   Diff: 6/21.3642
 -  Step-by-step instructions for solving  Puzzle 250, (19/25)   Diff: 6/21.2257
 -  Step-by-step instructions for solving  Puzzle 251, (20/25)   Diff: 6/54.2432
 -  Step-by-step instructions for solving  Puzzle 252, (20/25)   Diff: 6/45.3422
 -  Step-by-step instructions for solving  Puzzle 253, (20/25)   Diff: 6/23.3462
 -  Step-by-step instructions for solving  Puzzle 254, (20/25)   Diff: 6/23.3462
 -  Step-by-step instructions for solving  Puzzle 255, (20/25)   Diff: 6/23.3462
 -  Step-by-step instructions for solving  Puzzle 256, (20/25)   Diff: 6/11.2583
 -  Step-by-step instructions for solving  Puzzle 257, (21/25)   Diff: 6/43.3542
 -  Step-by-step instructions for solving  Puzzle 258, (21/25)   Diff: 6/25.5432
 -  Step-by-step instructions for solving  Puzzle 259, (21/25)   Diff: 6/25.3353
 -  Step-by-step instructions for solving  Puzzle 260, (21/25)   Diff: 6/24.4236
 -  Step-by-step instructions for solving  Puzzle 261, (21/25)   Diff: 6/23.3643
 -  Step-by-step instructions for solving  Puzzle 262, (21/25)   Diff: 6/22.4652
 -  Step-by-step instructions for solving  Puzzle 263, (21/25)   Diff: 6/14.4246
 -  Step-by-step instructions for solving  Puzzle 264, (21/25)   Diff: 6/12.4455