gareth Administrator Daily subscriber Has started but not yet finished this puzzle
In this puzzle no number can be a king's move in chess away from the same number.
In practice this means that no diagonally-touching squares can contain the same number, since the regular sudoku constraints take care of the horizontal and vertical chess moves.
So if you have a 3 at (0,0) in the grid, you can't also have a 3 at (1,1), and vice-versa.
Posted 16th Jul 2012 at 17:20 Last edited by gareth 16th Jul 2012 at 17:20
gareth Administrator Daily subscriber Has started but not yet finished this puzzle
Please also note that the 'valid only' / 'auto-remove' assistants are not aware of the anti-king constraints so will not automatically remove invalid diagonally-touching numbers.
Posted 17th Jul 2012 at 03:17
amymagnet Daily subscriber Rated puzzle: EasyCompletion time: 5:04Used 'valid marks' Used 'auto remove' Used 'show wrong moves'
I couldn't find where it explained that in the rules.
Robert Daily subscriber Rated puzzle: ModerateCompletion time: 27:10Used 'valid marks' Used 'auto remove'
To solve this I had to assume that the "Anti-King" rule applies flowing from the top row to the bottom row. Otherwise there were two solutions.
Did I make a mistake?
Cheers, r
P.S. This is a nice puzzle idea.
Posted 17th Jul 2012 at 13:13
gareth Administrator Daily subscriber Has started but not yet finished this puzzle
Hi, It applies to every square - imagine a king on any square. Anywhere it can move can't contain the same value. So it's not just top to bottom but every direction.
amymagnet, yes I haven't added it to the instructions. This is more of just a test to see what people think of it. I have some other variants to try out too. :)
I guess Robert meant he had assumed that cursor moving applies to the king as well. I.e. when the king moves upwards from the top row it arrives to the buttom row. Like the puzzle is on a sphere or somthing. I did not need such assumption.
Go ahead with those variants.
Posted 17th Jul 2012 at 17:33
gareth Administrator Daily subscriber Has started but not yet finished this puzzle
Oh right, I see. No, there's no wraparound. It's like a chess board and uses the same rules as chess. In chess you can't go off one side and come back on the other; in this variant you don't do that either.
Good sudoku puzzle variant. The only thing is the anti-king rules are need to be explained a bit more for start to make the sudoku. If not, the people starts the puzzle and only go to the forum when not found any clue more.
Interesting variant, though I wish I'd read the rules before I started. I'm thinking my time might have been a little better if I hadn't discovered the meaning of the "anti king" variant 20 minutes into solving. ;)
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In practice this means that no diagonally-touching squares can contain the same number, since the regular sudoku constraints take care of the horizontal and vertical chess moves.
So if you have a 3 at (0,0) in the grid, you can't also have a 3 at (1,1), and vice-versa.
Last edited by gareth 16th Jul 2012 at 17:20
Did I make a mistake?
Cheers, r
P.S. This is a nice puzzle idea.
It applies to every square - imagine a king on any square. Anywhere it can move can't contain the same value.
So it's not just top to bottom but every direction.
amymagnet, yes I haven't added it to the instructions. This is more of just a test to see what people think of it. I have some other variants to try out too. :)
Go ahead with those variants.
Good sudoku puzzle variant. The only thing is the anti-king rules are need to be explained a bit more for start to make the sudoku. If not, the people starts the puzzle and only go to the forum when not found any clue more.
Sorry for my english
You can however view other players' statistics and comments in the tables above.