Challenging Sudoku Seven Logic Puzzles (Vol 1) 
 Chapter 14: Twelve Challenging (DiffLev 14) Sudoku-7C-2V Puzzles (numbers 151-162) 
 
-  Step-by-step instructions for solving  Puzzle 151, (39/49)   Diff: 14/63.4322.3112.3351
 -  Step-by-step instructions for solving  Puzzle 152, (39/49)   Diff: 14/22.A322.1A36.6433
 -  Step-by-step instructions for solving  Puzzle 153, (39/49)   Diff: 14/21.261A.1232.2376
 -  Step-by-step instructions for solving  Puzzle 154, (40/49)   Diff: 14/61.1112.3432.2743
 -  Step-by-step instructions for solving  Puzzle 155, (40/49)   Diff: 14/42.1211.1335.3581
 -  Step-by-step instructions for solving  Puzzle 156, (40/49)   Diff: 14/2A.A111.2257.5642
 -  Step-by-step instructions for solving  Puzzle 157, (41/49)   Diff: 14/42.2113.3221.4871
 -  Step-by-step instructions for solving  Puzzle 158, (41/49)   Diff: 14/22.3311.2463.5441
 -  Step-by-step instructions for solving  Puzzle 159, (41/49)   Diff: 14/11.1211.3335.4781
 -  Step-by-step instructions for solving  Puzzle 160, (42/49)   Diff: 14/33.1221.1234.3881
 -  Step-by-step instructions for solving  Puzzle 161, (42/49)   Diff: 14/21.AA12.1112.4996
 -  Step-by-step instructions for solving  Puzzle 162, (43/49)   Diff: 14/32.231A.3246.7441