After basics
- Code: Select all
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| A1238(4) gc34 5 | 7 1269 12369 |f14689 16 f4689 |
| d1478 6 d478 | 149 5 19 |e14789 3 2 |
| 9 c347 2347 | 12346 126 8 | 14567 1567 467 |
|--------------------------+----------------------+--------------------|
| 6 3579 2379 | 12389 1289 4 | 235789 257 789 |
| 235 8 239 | 2369 7 2369 | 23569 4 1 |
|ia2347 hb3479 1 | 5 2689 2369 | 236789 267 6789 |
|--------------------------+----------------------+--------------------|
| 34578 34579 346789 | 12689 12689 125679 | 12467 1267 467 |
| 7-4 1 4679 | 269 3 2679 | 2467 8 5 |
| 578 2 678 | 168 4 1567 | 167 9 3 |
'----------------------------------------------------------------------'
1. (4*)r1c1 = [(4)r6c1 = (4)r6c2 - (4=37)r13c2 - (7)r2c13 = (7-8|9)r2c7 = (89-4)r1c79 =* (4)r1c2 - (4)r6c2 = (4)r6c1]
=> -4 r8c1 [placements and basics]
(Either we have (4)r1c1 or a discontinuous loop. In any case, (4)r8c1 must be false)
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- Code: Select all
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| 12348 34 5 | 7 29 1239 | 489 6 489 |
| 148 6 b478 | 49 5 19 |c4789 3 2 |
| 9 347 2347 | 2346 26 8 | 15 15 47 |
|-------------------------+-------------------------+-------------------------|
| 6 3579 2379 | 12389 1289 4 | 235789 257 789 |
| 235 8 239 | 2369 7 2369 | 23569 4 1 |
| 234 3479 1 | 5 2689 2369 | 236789 27 6789 |
|-------------------------+-------------------------+-------------------------|
| 3458 3459 a34689 | 12689 12689 57 | 12467 127 467 |
| 7 1 469 | 269 3 269 | 246 8 5 |
|f5-8 2 a68 | 168 4 e57 |d167 9 3 |
'-----------------------------------------------------------------------------'
2. (8)r79c3 = (8-7)r2c3 = (7)r2c7 - (7)r9c7 = (7-5)r9c6 = (5)r9c1 => -8 r9c1 [placements and lots of basics]
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- Code: Select all
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| 18 a34 5 | 7 29 1239 |b489 6 89 |
| 18 6 7-4 | 49 5 19 | 4789 3 2 |
| 9 347 2 | 34 6 8 | 1 5 47 |
|-------------------+-------------------+-------------------|
| 6 5 379 | 2389 1 4 | 389 27 89 |
| 23 8 39 | 2369 7 2369 | 5 4 1 |
| 234 479 1 | 5 289 239 | 389 27 6 |
|-------------------+-------------------+-------------------|
| 34 9-4 3469 | 2689 289 5 | 247 1 47 |
| 7 1 d469 | 269 3 269 |c24 8 5 |
| 5 2 8 | 1 4 7 | 6 9 3 |
'-----------------------------------------------------------'
3. SS (4): r1c2 = r1c7 - r8c7 = r8c3 => -4 r2c3,r7c2; ste