bonanova Posted June 29, 2012 Report Share Posted June 29, 2012 How many Queens does it take to attack all [64-N] unoccupied squares on a standard 8x8 chessboard? Yes, N is the number of Queens. Quote Link to comment Share on other sites More sharing options...
0 EventHorizon Posted June 29, 2012 Report Share Posted June 29, 2012 7. Obviously 8 along the diagonal will cover them all. But you can remove one from one of the corners and still have them all covered. I'll consider the problem more carefully now. Quote Link to comment Share on other sites More sharing options...
0 psykomakia Posted June 29, 2012 Report Share Posted June 29, 2012 (edited) I got, so far... Five. I think there are numerous answer for five queens, so I tried four, but couldn't make it fit. This was about five minutes of work, so I'm guessing the answer will be four. EDIT to add my positions A2, C3, D8, G5, H1 Edited June 29, 2012 by psykomakia Quote Link to comment Share on other sites More sharing options...
0 EventHorizon Posted June 29, 2012 Report Share Posted June 29, 2012 (edited) Got it in 6 with a1,b3,c5,d8,g4,h2 Didn't notice psykomakia's post. That's what i get for making dinner while puzzling. Edited June 29, 2012 by EventHorizon Quote Link to comment Share on other sites More sharing options...
0 bonanova Posted June 29, 2012 Author Report Share Posted June 29, 2012 Got it in 6 with a1,b3,c5,d8,g4,h2 Didn't notice psykomakia's post. That's what i get for making dinner while puzzling. So end the suspense ... What was for dinner? Quote Link to comment Share on other sites More sharing options...
0 bonanova Posted June 29, 2012 Author Report Share Posted June 29, 2012 I got, so far... Five. I think there are numerous answer for five queens, so I tried four, but couldn't make it fit. This was about five minutes of work, so I'm guessing the answer will be four. EDIT to add my positions A2, C3, D8, G5, H1 Yeah, that's it. Nice. Quote Link to comment Share on other sites More sharing options...
Question
bonanova
How many Queens does it take to attack all [64-N] unoccupied squares on a standard 8x8 chessboard?
Yes, N is the number of Queens.
Link to comment
Share on other sites
5 answers to this question
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.