Challenging Sudoku Logic Puzzles (Vol 1)
Chapter 8: Thirty Challenging (DiffLev 20) Sudoku Puzzles (numbers 151-180)
- Step-by-step instructions for solving Puzzle 151, (50/81) Diff: 20/61AB.2111.1112.3335.5551
- Step-by-step instructions for solving Puzzle 152, (53/81) Diff: 20/4343.2322.2211.2222.3634
- Step-by-step instructions for solving Puzzle 153, (54/81) Diff: 20/4221.B223.1125.2322.4662
- Step-by-step instructions for solving Puzzle 154, (54/81) Diff: 20/3212.1A11.AA22.5434.4466
- Step-by-step instructions for solving Puzzle 155, (55/81) Diff: 20/75B1.1122.3311.11A2.4683
- Step-by-step instructions for solving Puzzle 156, (55/81) Diff: 20/7511.11A1.1112.2342.5745
- Step-by-step instructions for solving Puzzle 157, (55/81) Diff: 20/5421.3213.2212.1136.5641
- Step-by-step instructions for solving Puzzle 158, (55/81) Diff: 20/531A.3122.2211.1213.5874
- Step-by-step instructions for solving Puzzle 159, (55/81) Diff: 20/4423.221A.A1A1.1263.6464
- Step-by-step instructions for solving Puzzle 160, (55/81) Diff: 20/4211.11CA.B122.3434.5744
- Step-by-step instructions for solving Puzzle 161, (55/81) Diff: 20/323A.A232.1A12.2475.3471
- Step-by-step instructions for solving Puzzle 162, (55/81) Diff: 20/2AA1.A422.2121.3314.5883
- Step-by-step instructions for solving Puzzle 163, (56/81) Diff: 20/6111.C222.1321.1245.8551
- Step-by-step instructions for solving Puzzle 164, (56/81) Diff: 20/5322.311B.1223.4743.3341
- Step-by-step instructions for solving Puzzle 165, (56/81) Diff: 20/5321.A334.12A1.2233.3565
- Step-by-step instructions for solving Puzzle 166, (56/81) Diff: 20/5312.2BB3.5231.1114.9351
- Step-by-step instructions for solving Puzzle 167, (56/81) Diff: 20/4AA1.1A11.2232.2234.5792
- Step-by-step instructions for solving Puzzle 168, (56/81) Diff: 20/4421.1112.3122.11B5.6971
- Step-by-step instructions for solving Puzzle 169, (56/81) Diff: 20/41AA.2224.4233.11A2.6673
- Step-by-step instructions for solving Puzzle 170, (56/81) Diff: 20/1112.2132.1114.4824.5463
- Step-by-step instructions for solving Puzzle 171, (57/81) Diff: 20/6524.2222.21B1.2534.4341
- Step-by-step instructions for solving Puzzle 172, (57/81) Diff: 20/631A.AA12.21B4.3444.5642
- Step-by-step instructions for solving Puzzle 173, (57/81) Diff: 20/5442.BA11.1A25.3435.4432
- Step-by-step instructions for solving Puzzle 174, (57/81) Diff: 20/51A2.3311.4424.3A22.5652
- Step-by-step instructions for solving Puzzle 175, (57/81) Diff: 20/4222.B111.23B3.2447.6432
- Step-by-step instructions for solving Puzzle 176, (57/81) Diff: 20/3554.4222.A11A.A232.3834
- Step-by-step instructions for solving Puzzle 177, (57/81) Diff: 20/3222.3341.1223.3344.5244
- Step-by-step instructions for solving Puzzle 178, (58/81) Diff: 20/3313.21BB.1B11.3545.5455
- Step-by-step instructions for solving Puzzle 179, (58/81) Diff: 20/311B.A233.122C.2223.4893
- Step-by-step instructions for solving Puzzle 180, (59/81) Diff: 20/3212.221B.5223.5552.3354