Needed many (easy) steps.
- Code: Select all
+-------------------------+-------------------------+-------------------------+
| 4 123 29 | 8 357 13579 | 23 6 257 |
| 7 1238 268 | 13456 35 13456 | 9 348 245 |
| 69 38 5 | 4679 2 4679 | 38 47 1 |
+-------------------------+-------------------------+-------------------------+
|a58 7 1 | 59 6 b589 | 4 2 3 |
| 23568 258 268 | 1235 4 12358 | 7 18 9 |
| 238 9 4 | 1237 c378 12378 | 18 5 6 |
+-------------------------+-------------------------+-------------------------+
| 1259-8 6 289 | 23457 d3578 234578 | 123 13479 247 |
| 1258 2458 7 | 2345 9 23458 | 6 134 24 |
| 29 24 3 | 2467 1 2467 | 5 479 8 |
+-------------------------+-------------------------+-------------------------+
kite 8: 8r4c1 = r4c6 - r6c5 = r7c5 => -8r7c1
- Code: Select all
+-------------------------+-------------------------+-------------------------+
| 4 123 *29 | 8 357 13579 | 23 6 257 |
| 7 1238 268 | 13456 35 13456 | 9 348 245 |
|*69 38 5 | 4679 2 4679 | 38 47 1 |
+-------------------------+-------------------------+-------------------------+
|@58 7 1 | 59 6 589 | 4 2 3 |
|@2358-6 25-8 *26-8 | 1235 4 12358 | 7 #18 9 |
|@238 9 4 | 1237 378 12378 | 18 5 6 |
+-------------------------+-------------------------+-------------------------+
| 1259 6 289 | 23457 3578 234578 | 123 13479 247 |
|#1258 2458 7 | 2345 9 23458 | 6 @134 24 |
| 29 24 3 | 2467 1 2467 | 5 479 8 |
+-------------------------+-------------------------+-------------------------+
w-wing (?) 18 with SL 1r8: 8r456c1 = (8-1)r8c1 = r8c8 - (1=8)r5c8 => -8r5c23
Then xy-wing 29-6 (*) => -6r5c1
- Code: Select all
+-------------------------+-------------------------+-------------------------+
| 4 13-2 9 | 8 357 1357 |*23 6 257 |
| 7 1238 #*28 | 13456 35 13456 | 9 34-8 45-2 |
| 6 3-8 5 | 479 2 479 |@38 47 1 |
+-------------------------+-------------------------+-------------------------+
| 58 7 1 | 59 6 589 | 4 2 3 |
| 2358 25 6 | 1235 4 12358 | 7 18 9 |
| 238 9 4 | 1237 @378 12378 |#18 5 6 |
+-------------------------+-------------------------+-------------------------+
| 1259 6 @*28 | 23457 #3578 234578 |*123 13479 247 |
| 125 2458 7 | 2345 9 23458 | 6 134 24 |
| 29 24 3 | 2467 1 2467 | 5 479 8 |
+-------------------------+-------------------------+-------------------------+
skyscraper 2c37 => -2r1c2,r2c9
3 SL8: 8r2c3 = r7c3 - r7c5 = r6c5 - r6c7 = r3c7 => -8r3c2,r2c8
UR249 or skyscraper 3 to the end.