Cenoman wrote:(...)
UR(24)r12c67, using mixed internal-external
(...)
Nice and also unexpected!
Thank you all for sharing your solutions!
My solution path for this puzzle is more predictable:
After basics,
- Code: Select all
,-------------------------------------------------------------------,
| 6 8 279 | 579 345 b(24) |a(2)349 1259 1359 |
| 2579 1 3 | 5789 B[46]5 B[48]2 |A[246]89 2589 589 |
| 259 259 4 | 589 36 1 | 36 2589 7 |
|-----------------------+--------------------+----------------------|
|De(2)3-7 De(62)-7 1 | 38 9 Cc[(4)8]| 5 27 Cd[(46)]|
| 8 569 69 | 2 45 7 | 1 3 46 |
| 35 4 z{27} | 6 1 35 |y{2}89 2789 89 |
|-----------------------+--------------------+----------------------|
| 4 3 5 | 1 8 9 | 7 6 2 |
| 1 269 269 | 35 7 356 | 389 4 3589 |
| 79 679 8 | 4 2 356 | 39 159 1359 |
'-------------------------------------------------------------------'
Kraken Column (2)r126c7
||(2)r1c7 - (2=4)r1c6 - (4)r4c6 = (462)r4c129
||(2-4|6)r2c7 = (46-8)r2c56 = (84-6)r4c69 = (62)r4c12
||(2)r6c7 - (2=7)r6c3
=> -7 r4c12; ste