Brain Teasers Optical Illusions Puzzle Hunts Codes & Ciphers Mechanical Puzzles
Personal Links
Browse Teasers
Search Teasers

The Eight Queens

Logic puzzles require you to think. You will have to be logical in your reasoning.

 

Puzzle ID:#39142
Fun:*** (2.15)
Difficulty:*** (2.82)
Category:Logic
Submitted By:Hrsemn4Aus****

 

 

 



One of the most famous logic puzzles is the "Eight Queens puzzle". The object of this puzzle is to place 8 chess queens on a standard 8x8 chessboard so that no queen can be captured by any of the other queens.

Logically, no queen can share the same row, column, or diagonal with any other queen.

Can you discover an arrangement that works?


Answer

There are actually 12 completely unique solutions to this puzzle (unique meaning not simply rotating or flipping the board).

Using a standard system of numbering rows 1-8 moving away from the player and noting columns with letters a-h, here are the solutions:

1) a1, g2, e3, h4, b5, d6, f7, c8
2) a1, g2, d3, f4, h5, b6, e7, c8
3) c1, a2, g3, e4, h5, b6, d7, f8
4) d1, a2, e3, h4, b5, g6, c7, f8
5) e1, a2, h3, d4, b5, g6, c7, f8
6) e1, a2, d3, f4, h5, b6, g7, c8
7) e1, a2, h3, f4, c5, g6, b7, d8
8) e1, c2, a3, g4, b5, h6, f7, d8
9) e1, g2, a3, d4, b5, h6, f7, c8
10) f1, a2, e3, b4, h5, c6, g7, d8
11) f1, c2, a3, h4, d5, b6, g7, e8
12) g1, a2, c3, h4, f5, d6, b7, e8

Hide




What Next?

  
  

See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.

 


Comments

sioga
Nov 15, 2007

that was easy with a chess board.but this is not fair for those who never play chess before.
jamesbondAsg*
Nov 25, 2007

nice one...have seen that before...but never knew it had 12 unique solutions...thanks keep it up!
zeepuzzlemasterca*
Nov 25, 2007

lol the answer to the question is yes
dswilborn*
Jun 21, 2008

There was a game on Yahoo that tested your ability to place eight pieces on the chess board.
DarthKaanus
Feb 23, 2010

What about: h1, f2, d3, b4, g5, e6, c7, a8?
grace317
Apr 22, 2015

I got a1 b5 c2 d6 e3 f7 g4 h8, it's not in any of the 12 answers stated but I don't see why this doesn't work! I don't play chess so if any chess player would like to enlighten me that would be awesome.
grace317
Apr 22, 2015

I got a1 b5 c2 d6 e3 f7 g4 h8, it's not in any of the 12 answers stated but I don't see why this doesn't work! I don't play chess so if any chess player would like to enlighten me that would be awesome.

Back to Top
   


Online Now
11 users and 649 guests

Users In Chat
autumn
Follow Braingle!
Tap into all 20,000+ of our brain teasers, riddles and puzzles on your iPhone or iPad.
Braingle in the iTunes App Store
Copyright © 1999-2017 | FAQ | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise | Braingle Time: 5:39 pm
Sign In Create a free account