Have last Sunday's ultra-hard to here. Anyone else want to work on it? If we get stuck for 24 hours, someone gets a hint from SumoCue and runs with it.
Kept track of the steps below.
Cheers
Ed
Code: Select all
.--------.--------.--------.--------.--------.--------.--------.--------.--------.
| 235 | 9 | 2356 | 256 | 1 | 4 | 7 | 238 | 58 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 1 | 23456 | 23456 | 2457 | 359 | 23569 | 238 | 479 | 4578 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 23 | 2347 | 8 | 457 | 349 | 59 | 1459 | 1479 | 6 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 58 | 45678 | 4569 | 45 | 2 | 159 | 1569 | 479 | 3 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 7 | 3456 | 34569 | 1 | 3459 | 8 | 3569 | 369 | 2 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 4 | 1235 | 359 | 8 | 6 | 1359 | 12359 | 12379 | 157 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 6 | 12358 | 1235 | 9 | 7 | 23 | 238 | 1234 | 145 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 238 | 238 | 1245 | 2456 | 45 | 7 | 123468 | 123468 | 9 |
:--------+--------+--------+--------+--------+--------+--------+--------+--------:
| 9 | 124 | 7 | 3 | 8 | 26 | 1246 | 5 | 14 |
'--------'--------'--------'--------'--------'--------'--------'--------'--------'
Code: Select all
.--.--.--.--.--.--.--.--.--.
|1 |1 |1 |2 |2 |2 |2 |2 |3 |
:--+--+--+--+--+--+--+--+--:
|1 |1 |1 |1 |2 |2 |2 |3 |3 |
:--+--+--+--+--+--+--+--+--:
|4 |4 |1 |1 |5 |2 |3 |3 |3 |
:--+--+--+--+--+--+--+--+--:
|4 |4 |4 |5 |5 |5 |6 |3 |3 |
:--+--+--+--+--+--+--+--+--:
|7 |4 |4 |4 |5 |6 |6 |6 |3 |
:--+--+--+--+--+--+--+--+--:
|7 |7 |4 |5 |5 |5 |6 |6 |6 |
:--+--+--+--+--+--+--+--+--:
|7 |7 |7 |8 |5 |9 |9 |6 |6 |
:--+--+--+--+--+--+--+--+--:
|7 |7 |8 |8 |8 |9 |9 |9 |9 |
:--+--+--+--+--+--+--+--+--:
|7 |8 |8 |8 |8 |8 |9 |9 |9 |
'--'--'--'--'--'--'--'--'--'
1. 1 in r3 only in n3: no 1 r4c8
2. 1 in n5 only in c6: 1 locked for c6
3. 7 in n4 only in c2: 7 locked for c2
4. 7 in n1 only in c4:7 locked for c4
5. 7 in r8 only in n9: 7 locked for n9
6. 8 in c9 only in n3: 8 locked for n3
7. 8 in n5 onlyh in c4: 8 locked c4
8. 8 in n23 only in r12: X-Wing: 8 locked r12
8a. r3c3 = 8
9. 7 in n36 only in c89: X-Wing: 7 locked c89
9a. r8c6 = 7
10. 7 in r6 only in n6: 7 locked n6
10a. r7c5 = 7
11. 8 in n4 only in r4:8 locked r4
11a. r6c4 = 8
12. Combined Peer Elimination (CPE) for n8: no 1 r8c2
13. 2 in r12 only in n12: X-Wing -> no 2 r3c46
14. 2 in r3 only in n4: 2 locked n4
15. 3 in r12 only in n12: X-wing -> 3 locked n12 (no 3 r3c6)
16. 4 in r89 only in n89: X-Wing -> 4 locked for n89 (no 4 r7c47)
17. 4 in r7 only in n6: 4 locked n6
18. 5 in n36 only in c79: X-Wing -> no 5 r2c7
19. 9 in n78 only in r79: X-Wing -> no 9 r7c8
20. 9 in n36 only in c78: X-Wing -> no 9 r2c7
21. LoL r123: r3c125 = r4c89+r5c9 -> no 5 r3c125
22. LoL r89: r7c467 = r8c12 + r9c1 -> no 1 r7c7
23. LoL c789: r12c7+r1c8 = r578c6 -> no 6 r1c8 and r2c7
24. CPE 6's n2 -> no 6 r2c4
25. 6 in n14 only in c23: X-Wing -> no 6 r8c3 and r9c2
26. 2 7's n4 -> no 9 r4c1
26a. 7 r4c2 -> 8 r4c1 -> no 9 r4c1
26b. 7 r3c2 -> 2 r3c1 -> 9 r9c1 -> no 9 r4c1
27. no 9 r4c4 because of 9's in c1
27a. 9 in r3c1 -> 9 in n2 in r2 -> 9 in n3 in r4c8 -> no 9 r4c4
27b. 9 in r9c1 -> 9 in n8 in r7c4 -> no 9 r4c4
28. r7c4 = 9 (hsingle c4)
28a. r9c1 = 9
29. 5 in n8 only in r8:5 locked for r8