This one is more complicated than the number puzzle, but it can be solved in a few minutes.Place five stones on an 8x8 grid in such a way that every square consisting of 9 cells has only one stone in it.
A chessboard puzzle
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
A chessboard puzzle
From the same article in The Guardian:
Best wishes,
Hans
Hans
-
- gamma jay
- Posts: 25455
- Joined: 17 Mar 2010, 17:33
- Location: Cape Town
Re: A chessboard puzzle
I'll go out and buy tomorrows Guardian if nobody answers this one by then.
Regards,
Rudi
If your absence does not affect them, your presence didn't matter.
Rudi
If your absence does not affect them, your presence didn't matter.
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
Re: A chessboard puzzle
The solution can already be found on website, but this puzzle isn't really that difficult...
Best wishes,
Hans
Hans
-
- 2StarLounger
- Posts: 196
- Joined: 31 Mar 2011, 03:41
- Location: Perth, Western Australia
Re: A chessboard puzzle
Spoiler
A3 D3 G3 C6 F6
Regards
Kevin
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
Re: A chessboard puzzle
Here is a picture of one of the solutions:
Spoiler
You do not have the required permissions to view the files attached to this post.
Best wishes,
Hans
Hans
-
- gamma jay
- Posts: 25455
- Joined: 17 Mar 2010, 17:33
- Location: Cape Town
Re: A chessboard puzzle
But those aren't stones!HansV wrote:Here is a picture of one of the solutions...
Regards,
Rudi
If your absence does not affect them, your presence didn't matter.
Rudi
If your absence does not affect them, your presence didn't matter.
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
Re: A chessboard puzzle
Best wishes,
Hans
Hans
-
- 2StarLounger
- Posts: 196
- Joined: 31 Mar 2011, 03:41
- Location: Perth, Western Australia
Re: A chessboard puzzle
While the least number would appear to be 4, what is the most number of stones to fulfill the same criterium? (I don't know the answer )
Regards
Kevin
Regards
Kevin
-
- Administrator
- Posts: 78594
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
Re: A chessboard puzzle
The maximum is 9:
Any attempt to push the stones closer together will result in more than one stone in a 3x3 square.
Any attempt to push the stones closer together will result in more than one stone in a 3x3 square.
You do not have the required permissions to view the files attached to this post.
Best wishes,
Hans
Hans