thanks all for solving!
Cenoman wrote:Has it already been seen in valid puzzles ?
im a little surprised i didnt catch this way of solving it, because yes this logic was in an old puzzle of mine,
Patto Patto
the alternative way of solving this that i had in mind is as follows:
if the cells r16c49 contain a repeated digit [123] it is eliminated from r16c1 & r9c49 and therefore in c1 and r9 locked into b7
but it cannot take the intersection (r9c1) and therefore a repeat is not possible. so all 4 cells are different and r1c9 is an 8
this was a different take on a puzzle posted earlier,
Crossbow where in that puzzle the repeat is forced and so the intersection cell has eliminations
oh well, im glad this was enjoyed at least! and its nice to see a deduction have multiple ways of being explained
i might as well take the opportunity to post this updated version of Patto Patto that i made a while ago since i felt like that puzzle couldve used more polish
- Code: Select all
+-------+-------+-------+
| . 2 3 | . 5 6 | . 8 9 |
| 8 . . | . . . | . . 3 |
| 9 . . | . . . | 5 . . |
+-------+-------+-------+
| 6 1 . | 9 . . | . . 2 |
| 2 . . | 5 8 . | . . 6 |
| . . . | . 6 2 | . . . |
+-------+-------+-------+
| 3 . . | . . . | . . 5 |
| 5 4 . | . . 7 | . . 8 |
| . 8 6 | . 2 5 | 3 9 . |
+-------+-------+-------+
Odoreya Odore
.23.56.898.......39.....5..61.9....22..58...6....62...3.......554...7..8.86.2539.
as for the relationship to tridagons, its not quite the same logic, but the pattern (in its reduced 3-digit form) is a chromatic pattern of the same size