# 14 knights

David113
Posers and Puzzles 05 Feb '07 21:29
1. 05 Feb '07 21:29
Place 14 knights on the chessboard, so all the empty squares - and ONLY the empty squares - will be attacked.
2. TheMaster37
Kupikupopo!
05 Feb '07 22:5010 edits
Hmm, I can do it with 16 :p
3. 06 Feb '07 09:02
Originally posted by TheMaster37
Hmm, I can do it with 16 :p
so you can't do it with 14?
4. TheMaster37
Kupikupopo!
06 Feb '07 10:28
Originally posted by metbierop
so you can't do it with 14?
Not yet, in any case ðŸ™‚
5. 06 Feb '07 13:31
Where did you get 16 knights from... do you own a chess set shop?
6. TheMaster37
Kupikupopo!
08 Feb '07 22:23
Originally posted by Griddle
Where did you get 16 knights from... do you own a chess set shop?
Ahh, I have many imaginary knights at my disposal ðŸ˜‰
7. 10 Feb '07 02:08
This can also be done with 8 queens. But it's a tad easier.
8. 10 Feb '07 03:08
Originally posted by Obese
This can also be done with 8 queens. But it's a tad easier.
duh...
9. 11 Feb '07 21:03
I'm not sure I understand the puzzle.
10. 18 Feb '07 19:031 edit
The statement of the problem is simple. Place 14 knights on the board in such a way that it meets 2 qualifications.

1 All squares where a knight is not have a knight attacking/defending them.
2 No square with a knight is attacked or defended by a fellow knight.
3 Presumably, no square has more than 1 knight..

I note one thing in particular. There is nothing prohibiting 2 or more knights from attacking/defending the same square, only each other. And that is probably key.
11. 18 Feb '07 21:061 edit
16 isn't too terribly hard. 14 seems like not quite enough, especially if you're trying to patch them in..

I always end up with 2 uncovered squares.. Is there a solution?
12. XanthosNZ
Cancerous Bus Crash
18 Feb '07 23:00
Originally posted by geepamoogle
16 isn't too terribly hard. 14 seems like not quite enough, especially if you're trying to patch them in..

I always end up with 2 uncovered squares.. Is there a solution?
13. 22 Feb '07 12:32
I've done it with twelve but have four spaces left which i have to fill up with knights. So that makes 16. I can't do it any better than that
14. 22 Feb '07 16:06
Originally posted by XanthosNZ
[fen]5n1n/2n5/2nn3n/7n/n7/4nn2/5n2/nnn5[/fen]
Bravo, very nice.
15. 28 Mar '07 18:111 edit
I can do this, simpler than wot evry1 els has done n do it with queens with only 6

Knights

= G 3,5,6 F 3,5,6 E1 D1 C 3,5,6 B 3,5,6

Queens

= The middle four and A6 n F1 i tink