- Code: Select all
+---------------+-------------------+-----------------+
| 9 1 8 | 47 a457# 6 | 3 45 2 |
| 56 45* 3 | 2 458* 9 | 7 b4568# 1 |
| 7 2 e456* | d48 3 1 | 59 c45689 569 |
+---------------+-------------------+-----------------+
| 4 579 2 | 678 1 578 | 59 3 569 |
| 3 579 157 | 467 a47# 457 | 2 1569 8 |
| 8 6 15 | 3 9 2 | 4 15 7 |
+---------------+-------------------+-----------------+
| 256 3 567 | 9 278 78 | 1 57 4 |
| 25 8 f457* | 1 27-4* 3 | 6 579 59 |
| 1 47 9 | 5 6 47 | 8 2 3 |
+---------------+-------------------+-----------------+
In 4s, a 5-link oddagon(*) with three guardians(#).
4r15c5 == (4-8)r2c8 = r3c8 - (8=4)r3c4 - r3c3 = 4r8c3 => -4r8c5; stte
SteveC