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 Post subject: Mean ORC 1 and 1A
PostPosted: Sat Dec 09, 2017 4:03 pm 
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Grand Master
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Joined: Wed Apr 30, 2008 9:45 pm
Posts: 549
Mean ORC 1 and 1A

I decided to combine the two puzzle types I've been doing recently so:

Meandoku (strictly extra) The following colour clues apply:
Green: the sum of the two adjacent cells is 8 or 9 only
Blue: the sum of the two adjacent cells is ten
Red: the sum of the two adjacent cells is 11 or 12 only
Yellow: the sum of the two cells is below eight
Grey: the sum of the two cells is above twelve

Odd Row and Column - ORC - so it is:
ORC: odd rows and columns are 1-9 no repeat; even ones are not (i.e. they can repeat).
NN: no nonets

For all cells:
AK: Anti-King - diagonally adjacent are not equal
FNC: Ferz Non-concecutive - diagonally adjacent are not consecutive
NC: adjacent cells are not consecutive

I solve these in JSudoku control-right click allows you to remove the row and column constraints. Note recursively solve works but deduce a move is flawed.

I would be grateful for your views on difficulty.

Mean ORC 1
Image

And a slightly harder one
Mean ORC 1A
Image

Solution:
162738495
384951617
516273849
738495162
951627384
273849516
495162738
627384951
849516273
Note this one is actually a Latin Square with no repeats so you can use that for an easier puzzle


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