These solutions are presented using a grid reference number for each of the moves.  The grid is numbered  as follows.  The first button in the top left is number 1 with the rest of the first row being 2, 3, 4 etc.  The second row starts with number 11 then 12, 13, 14 etc.  The third row is therefore number 21, 22, 23 and so on.

1. 1 – 23 – 21 – 3
2. 21 – 2 – 23 – 12
3. 3 – 12 – 2 – 23
4. 12 – 21 – 3 – 23 – 1
5. 12 – 3 – 2 – 3 – 13 – 21 – 21 – 22
6. 12 – 2
7. 22 – 1 – 2 – 12 – 12 – 23
8. 1 – 21 – 21 – 11
9. 1 – 21 – 22 – 2 – 13
10. 1 – 11 – 2
11. 24 – 27 – 47 – 44 – 33 – 36 – 39 – 13 – 15 – 19 – 53 – 55 – 59 – 63 – 65 – 69 – 60 – 45 – 46 – 25 – 26 – 5 – 3 – 9 – 20 – 40 –
12. 1 – 2 – 3 – 4 – 5 – 6 – 7 – 8 – 9 – 10 – 21 – 22 – 23 – 24 – 25 – 26 – 27 – 28 – 29 – 30
13. 31 – 36 – 28 – 7 – 5 – 4 – 14 – 1
14. 23 – 41 – 5 – 35 – 15 – 11 – 31 – 43 – 3
15. 14 – 14 – 3 – 23 – 11 – 15 – 13
16. 1 – 1 – 11 – 5 – 15 – 25 – 14 – 14 – 4
17. 1 – 12 – 21 – 15 – 25 – 24 – 15 – 3 – 1 – 2 – 11 – 2 – 12 – 3 – 11 – 2 – 1 – 22 – 21
18. 1 – 41 – 43 – 23 – 13
19. 2 – 5 – 8 – 19 – 28 – 17 – 25 – 15 – 23 – 13 – 22 – 22 – 11
20. 33 – 4 – 3 – 34 – 33 – 4 – 25 – 12 – 11 – 11 – 12 – 26 – 26 – 25 – 35 – 16 – 2 – 21
21. 25-15-25-3-43-7-47-23-29-12-18-32-38-11-42-8-39
22. 1 – 41 – 43 – 23 – 13 – 9 – 1 – 21 – 39 – 32 – 32 – 32 – 32 – 24 – 38 – 38 – 38 – 38 – 37 – 38 – 27 – 38 – 38 – 27 – 28 – 28 – 14 – 14 – 14 – 14 – 14 – 14 – 14 – 15 – 15 – 5 – 16 – 6 – 16 – 16 – 16 – 27 – 28 – 16 – 28 – 16 – 28 –
23. 22 – 31 – 35 – 45 – 46 – 25 – 16 – 14 – 14 – 14 – 14 – 5 – 6 – 16 – 14 – 27 – 17 – 6 – 17 – 27 – 38 – 18 – 18 – 16 – 18 – 8 – 16 – 16 – 16 – 16 – 8 – 16 – 16 – 16 – 8 – 16 – 16 – 16 – 16 – 16 – 8 – 16 – 16 – 28 – 38 – 38 – 38 – 49
24. 35 – 57 – 46 – 38 – 59 – 19 – 18 – 39 – 29 – 27 – 17 – 16 – 7 – 12 – 11 – 3 – 15 – 6 – 9 – 56 – 34 – 33 – 26 – 24 – 13 – 3 – 1 – 48 – 47 – 45 – 43 – 42 – 32 – 23 – 14 – 2 – 3 – 4 – 5 – 1 – 2 – 14 – 29
    
25. 22 – 31 – 35 – 45 – 46 – 25 – 16 – 14 – 14 – 14 – 14 – 5 – 6 – 16 – 14 – 27 – 17 – 6 – 17 – 27 – 38 – 18 – 18 – 16 – 18 – 8 – 16 – 16 – 16 – 16 – 8 – 16 – 16 – 16 – 8 – 16 – 16 – 16 – 16 – 16 – 8 – 16 – 16 – 28 – 38 – 38 – 38 – 49
26. 6 – 16 – 15 – 15 – 35 – 15 – 35 – 42 – 42 – 42 – 42 – 42 – 51 – 41 – 12 – 22 – 42 – 22
27. 14 – 28 – 17 – 18 – 17 – 26 – 17 – 17 – 38 – 58 – 47 – 17 – 17 – 17 – 58 – 28 – 47 – 47 – 46 – 42 – 42 – 31 – 12 – 12 – 3 – 12 – 42 – 42 – 31 – 44 – 47 – 56 – 56 – 42 – 42 – 42 – 52 – 34 – 38 – 28 – 47 – 37 – 47 – 36 – 47 – 48 – 47 – 47 – 48 – 47 – 58 – 47 – 57 – 57 – 47 – 47 – 47 – 47 – 47 – 58 – 36 – 47 – 47 – 47 – 58
28. 12-13-14-15-16-17-24-25
29. 35 – 15 – 7 – 8 – 9 – 11 – 12 – 2 – 3 – 12 – 22 – 12 – 23 – 12 – 12 – 23 – 22 – 32 – 12 – 12 – 21 – 41 – 42 – 62 – 34 – 33 – 32 – 42 – 52 – 43 – 44 – 53 – 18 – 28 – 18 – 27 – 29 – 58 – 47 – 68 – 58 – 66 – 58 – 68 – 43 – 52 – 64 – 52 – 42 – 52 – 52 – 62 – 52 – 61 – 52 – 62 – 52 – 52 – 62 – 52 – 61
30. 51 – 33 – 42 – 43 – 49 – 56 – 45 – 45 – 54 – 45 – 45 – 44 – 23 – 13 – 12 – 12 – 12 – 1 – 15 – 15 – 15 – 4 – 15 – 15 – 14 – 15 – 15 – 5 – 15 – 15 – 12 – 13 – 15 – 13