HATMAN wrote:
Matt points out that this is interesting - however he missed the fact that it is no-operator (i.e. it is unique without giving the operators - or bothering to mention the 10). {He might mention this in his solution which I have not looked at.}
I would also guess that 1(2), 2(2), 5(2), 8(3), 12(3) with orthogonally connected cages is also unique -thoughts?
I'm afraid I (once again) have to embrass you here a little bit.
I didn't miss "the fact". In fact I have explored that no-op possibility way before you did, and found 2 solutions:
Code:
.-------.-------.
|2 |8 |
| | |
:---.---'---. |
|1 |12 | |
| | | |
| | .---'---:
| | |5 |
| | | |
:---'---'-------:
| |
| |
'---------------'
2143
4321
3214
1432
4231
2314
1423
3142
So yeah, this puzzle (even though so tiny) has to be taken with operators.