Only single-digit POM moves after 9 singletons:
- Code: Select all
+------------------+-------------------+----------------+
| 1 3456 3456 | 2 9 57 | 8 356 57 |
| 468 4568 9 | 1457 145 3 | 17 56 2 |
| 2 35 7 | 8 6 15 | 139 4 159 |
+------------------+-------------------+----------------+
| 3469 7 346 | 14569 1345 1569 | 134 2 8 |
| 3489 3489 1 | 4579 2 579 | 6 35 457 |
| 5 2 346 | 1467 134 8 | 1347 9 147 |
+------------------+-------------------+----------------+
| 69 1 2 | 69 8 4 | 5 7 3 |
| 7 4569 456 | 3 15 1569 | 2 8 49 |
| 349 3459 8 | 59 7 2 | 49 1 6 |
+------------------+-------------------+----------------+
#MNVT: (9 1 3 21 6 5 2 2 3)
Single-digit POM: .33....3...3.......3....3..3.3.3.3..33.....3...33333............3....3..33....3..
Digit 3 not in 3 Templates => -3 @ r1c8 r3c2 r4c7 r5c1 r5c2 r6c7
Digit 3 in all 3 Templates => 3 @ r3c7 r5c8
Single-digit POM: .44......44.44.....4.......4.444.4..44.4....4..444.4.4.......4..444.4..444....4.4
Digit 4 not in 21 Templates => -4 @ r2c1 r2c2
Single-digit POM: .55..5.55.5.55..5..5...5..5...555......5.5.55..................5555555.5.5.5..5..
Digit 5 not in 6 Templates => -5 @ r1c9 r2c4 r3c9 r5c4 r5c6 r8c6
Digit 5 in all 6 Templates => 5 @ r5c9
Single-digit POM: .66....6.66.....6..........6.66.6..............66.....6..6......666.6.66.....6...
Digit 6 not in 5 Templates => -6 @ r1c3 r4c1 r8c3
Single-digit POM: .....7..7...7..77......7...............7.7......7..7.7...........7........7.7..7.
Digit 7 not in 2 Templates => -7 @ r6c4
Single-digit POM: ....9.....9...............99..9.9...99.9.99...........9..9......9...9..999.9..9..
Digit 9 not in 3 Templates => -9 @ r5c4 r8c9 r9c1 r9c2 r9c4
Digit 9 in all 3 Templates => 9 @ r3c9 r9c7; stte
https://www.philsfolly.net.au/Sudoku/index.htm POM output:
- Code: Select all
4s at r1c23 only ones in row/column => -4 r2c12.
5s at r4c456 only ones in row/column => -5 r5c46.
Naked pairs of 57 at r1c69 => -5 r1c238
Naked triplets of 346 at r146c3 => -4 r8c3, -6 r8c3
Hidden pairs of 17 at r2c4 and r2c7
Hidden triples of 147 at r2c4, r2c5 and r2c7
No pattern of 1 includes r4c7, r6c4 so 1 can be deleted from r4c7, r6c4
All patterns of 3 include r3c7 so this can be made equal to 3
6s at r46c3 only ones in row/column => -6 r4c1.
Naked pairs of 34 at r19c2 => -4 r5c2
All patterns of 9 include r4c6 so this can be made equal to 9
Solved!
R. Jamil