mersenneforum.org  

Go Back   mersenneforum.org > Math Stuff > Combinatorics & Combinatorial Number Theory

Reply
 
Thread Tools
Old 2017-11-04, 05:18   #1
Godzilla
 
Godzilla's Avatar
 
May 2016

163 Posts
Default The Eight Queens problem

Good morning ,

Do you know where I can find the unique and distinct solutions (database) of up to 1000 queens ?

Thanks.


.
Godzilla is offline   Reply With Quote
Old 2017-11-04, 08:33   #2
Nick
 
Nick's Avatar
 
Dec 2012
The Netherlands

72A16 Posts
Default

Try Walter Kosters's bibliography:
http://liacs.leidenuniv.nl/~kosterswa/nqueens/
Nick is offline   Reply With Quote
Old 2017-11-04, 09:14   #3
Godzilla
 
Godzilla's Avatar
 
May 2016

163 Posts
Default

thanks Nick, i seem to have understood that there are about 27 queens for the moment and there are no updated databases.

Last fiddled with by Godzilla on 2017-11-04 at 09:15 Reason: Error
Godzilla is offline   Reply With Quote
Old 2017-12-26, 15:10   #4
Godzilla
 
Godzilla's Avatar
 
May 2016

163 Posts
Default

hello,

I wrote an article about it, it's on the ssrn site https://papers.ssrn.com/sol3/papers....act_id=3092883, it's a partial solution to the problem, I did not find anything similar to my article, maybe some of you read something like that? thank you
Godzilla is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
What is the problem here? didgogns Msieve 1 2016-11-15 03:31
problem 2.4 MattcAnderson Puzzles 4 2014-08-21 04:40
N queens on an N/N board. Peter Hackman Math 4 2008-09-24 16:34
51 problem Neves Miscellaneous Math 5 2004-02-10 22:59
51 problem Neves Puzzles 15 2004-02-05 23:11

All times are UTC. The time now is 14:51.


Fri Jun 9 14:51:48 UTC 2023 up 295 days, 12:20, 0 users, load averages: 0.90, 0.94, 0.95

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔