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Eight queens puzzle

	Eight queens puzzle - Wikipedia, the free encyclopedia
		14 queens (remainder 2): 2, 4, 6, 8, 10, 12, 14, 3, 1, 7, 9, 11, 13, 5.
		15 queens (remainder 3): 4, 6, 8, 10, 12, 14, 2, 5, 7, 9, 11, 13, 15, 1, 3.
		20 queens (remainder 8): 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 3, 1, 7, 5, 11, 9, 15, 13, 19, 17.
	en.wikipedia.org /wiki/Eight_queens_puzzle (417 words)

	The N Queens Problem
		It then places a queen in the second column and moves it until it finds a place where it cannot be hit by the queen in the first column.
		It then places a queen in the third column and moves it until it cannot be hit by either of the first two queens.
		If the queen there is at the end of the column it removes that queen as well and goes to the preceding column.
	www.math.utah.edu /~alfeld/queens/queens.html (1607 words)

	8 Queens (Site not responding. Last check: 2007-10-25)
		New in version 1.2 is the 8 Queens Solution Browser, which allows you to browse all 92 solutions to the puzzle.
		Contributions to 8 Queens are always welcome, and may be emailed to 8queens@basswood.com.
		At this point I consider 8 Queens to be finished, so further development is unlikely, although I am always open to suggestions.
	www.basswood.com /oss/8queens (316 words)

	8 Queens / Eight Queens Puzzle -- Java Applet
		The Queen in the FIRST row is to be placed in Column 1.
		The Queen in the SECOND row is to be placed in Column 5.
		The Queen in the THIRD row is to be placed in Column 8.
	prashant-online.tripod.com /javaqueens.html (262 words)

	Introduction. (Site not responding. Last check: 2007-10-25)
		In the Eight Queens problem the challenge is to place eight queens pieces from the game of Chess on a chessboard so that no queen piece is threatening another queen on the board.
		In the game of chess the queen is a powerful piece and has the ability to attack any other playing piece positioned anywhere else on the same row, column, or diagonals.
		The algorithm works by placing queens on various positions, adding one at a time until either eight queens have been placed on the chess board or less than eight queens are on the board but there are no more safe positions left on the board.
	www.iol.ie /~jmchugh/csc302/more/queens (450 words)

	Quirkasaurus - Solution to the 8 Queens Problem
		The 8 queens problem is stated: Arrange 8 queens on a chess board such that no queen is under attack by another one.
		Assume that at the very least, no queen can be in the same column or row of another queen.
		This means that each queen is on a unique row and column.
	www.geocities.com /quirkasaurus/queens8/index.html (254 words)

	8 queens - chess problem
		Mark 8 checkboxes as if they were queens on a chessboard.
		For non-chessplayers: make sure there is no more than one queen in a line, horizontally, vertically or diagonally.
		There are 12 solutions - 11 with 8 distinct rotations/flips and one with 4 distinct rotations/flips.
	www.creativepuzzels.nl /spel/speel1/queens-2.htm (74 words)

	8 Queens Chess Problem (Site not responding. Last check: 2007-10-25)
		In chess it is possible to place eight queens on the board so that no one queen can be taken by any other.
		The numbers represent the square on which one of the eight queens must be positioned.
		That is, the first number represents the ROW in which the queen is positioned in column 1; the second number represents the ROW in which the queen is positioned in column 2, and so on.
	acm.uva.es /p/v7/750.html (409 words)

	Queens Hotel - Stirling Hotel, Bridge of Allan Hotel, Scotland, Stirling conference facilities.
		In view of the National Wallace Monument, a landmark marking Scotland's best known freedom fighter, Sir William Wallace, and a short distance from Stirling Castle is the beautiful village of Bridge of Allan by Allan Water.
		Situated in the picturesque village of Bridge of Allan, two and a half miles from Stirling city centre, the Queen’s Hotel was built in the early part of the 19th century.
		The Queens Hotel are delighted to announce that we have just received our classification and grading award from Visitscotland.
	www.queenshotelscotland.com (430 words)

	8 Queens Algorithm (Site not responding. Last check: 2007-10-25)
		The algorithm for queens.hs is to place a queen in each column of the chess board, starting on one side of the board and working towards the other side.
		To solve the "n Queens Problem", take the list of board layouts from solutions to the "n-1 Queens Problem" and for each board, try adding a queen to each of the rows in the n-th column.
		If the new queen is "safe", add this board to the set of solutions to the "n Queens Problem".
	harold.hotelling.net /queens2.html (218 words)

	MathsNet Puzzles: 8 queens
		Place 8 queens onto the chess board, no queen can be attacking any other queen.
		A queen attacks all cells on its vertical, horizontal or diagonal lines of sight.
		The eight queens puzzle has 92 distinct solutions on a 8x8 grid.
	www.mathsnet.net /puzzles/eightqueens.html (92 words)

	Solutions to the 8-Queens Problem
		This problem is to place 8 queens on the chess board so that they do not check each other.
		That is, each queen position of the p-queen problem is regarded as a solution of the q-queen problem.
		The eight queens problem is frequently used as an example in Artificial Intelligence courses.
	bridges.canterbury.ac.nz /features/eight.html (384 words)

	Math Games: Chessboard Tasks
		Arrange 8 queens on an 8×8 board so that no two queens attack each other, and no 3 queens are in a straight line.
		Problem 5 is the non-dominating queens problem, and a favorite puzzle of both Martin Gardner and me. (Solve it!) It's a favorite problem of Mario Velucchi.
		For placing n queens on an n×n board, the maximal number of non-dominated squares is still unsolved for n>17.
	www.maa.org /editorial/mathgames/mathgames_04_11_05.html (1996 words)

	8 Queens Problem (Site not responding. Last check: 2007-10-25)
		The n-queens problem is the problem of finding a stable state solution to a chess game with a board size of n x n, and n queens on the board.
		a stable solution is one in which no queen can better her position by moving.
		This problem is relatively simple, as illustrated by the speed at which this page loads; the script which generates this page had to solve the problem first.
	www.cs.umass.edu /~colinb/queens?n=8 (81 words)

	VBForums - C - 8 Queens Problem
		I saw a very cryptic code for 8 queens problem in the internet.
		Place 8 queens in a chess board such that no other queen is in the same row, column and diagnol.
		The problem is place 8 queens on a chess board in such a way that no other queen falls in the same diagnoal and verticle and horizontal.
	www.vbforums.com /showthread.php?t=256876 (310 words)

	8-queens problem (Site not responding. Last check: 2007-10-25)
		A chess board contains 64 squares: 8 rows and 8 columns.
		Problem: 8 queens are to be placed on the chessboard such that no queen can attack any other queen.
		Eliminate infeasible cases: No queen can reside in the same row or column as another queen: 40,320
	www.cs.buffalo.edu /faculty/bina/cs114/lec5/sld009.htm (47 words)

	About "Hopfield Net for 8-Queens Problem" (Site not responding. Last check: 2007-10-25)
		Given a standard chessboard and 8 chess queens, place them on the board so that no queen is on the line of attack of any other queen.
		The author's applet finds solutions to the general problem, with N queens on the NxN board.
		The Math Forum is a research and educational enterprise of the Drexel School of Education.
	mathforum.org /library/view/9160.html (76 words)

	JEOPS Examples - The 8-Queens Problem (Site not responding. Last check: 2007-10-25)
		The objective of the 8-queens problem is to place 8 queens in a chess board so that no queen can attack another.
		The naive approach to solve it using a production system would be to assert 64 queens in the board (one for each position), and then stating a rule whose conditions checked for the non-attacking conditions.
		Though this approach works, it is very inefficient, because several permutations of the same solution would be found.
	www.di.ufpe.br /~jeops/manual/queens.html (431 words)

	[No title]
		/* Place N queens on a chessboard of size NN, so that no two queens* are in attack.
		Problem variables: a list [Q1,..., QN] of N variables, with QI the line number of queen in column I. Remark: Note the status of the "I_J" variable used in the definition of the "no_diagonal_attack_first" predicate: it is not a domain variable!
		It is considered as a rational number variable: thus the constraint "Jplus1_I ^= J_I + 1" is a rational linear constraint, not a domain constraint.
	www.enseirb.fr /~gloess/chipdir/clp/solutions/nqueens.pl (273 words)

	8 Queens
		8 Queens is a classic puzzle in which you simply try to place eight queens on a standard chessboard so that no queen can attack any other.
		New in this version is the 8 Queens Solution Browser, which allows you to browse all 92 solutions to the puzzle.
		You also can place some queens on the board and then browse for solutions containing that configuration.
	www.handheldnews.com /file.asp?ObjectID=5019 (130 words)

	10.1. Case Study I - 8 Queens Version 1.
		Case Study I - 8 Queens Version 1.
		[ 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 14, 13, 16]).
		To generalise example 3 to N queens we need to generate the domains automatically.
	www.cs.nott.ac.uk /~ceilidh/course.aip/unit.8/notes.html (169 words)

	8 Queens on A Chessboard
		Placing 8 Queens on a chessboard is a classic problem and is one of the good software interview question.
		Though instead of starting queen placement at predefined position (at 0,0 or at a corner), 1st queen placement in first row can be specified by user.
		for (int i=0; i < 8; i++) {
	www.svtechie.com /cms/content/view/27/51 (429 words)

	8-queens (Site not responding. Last check: 2007-10-25)
		can anyone help me to check if the solution for 8 queen is correct?
		System.out.println("#1 2 3 4 5 6 7 8 ");
		I assume you are talking about the 'Eight queens puzzle', explained in
	java-help.mp1online.com /8-queens-100500.html (66 words)

	8 Queens Action! (Site not responding. Last check: 2007-10-25)
		In line with Antic's long-held belief that our published programs are part of a two-way communications process with readers of the magazine, many Antic programming take-aparts conclude with suggestions for possible enhancements that an ambitious programmer might make in the listings.
		But Dave Oblad took it as a personal challenge when he saw Angelo Giambra's "The Eight Queens Problem" in the April, 1985 Antic and read our final comment: "For a real challenge, you might want to try modifying the program so that only the 12 unique solutions are found."
		(The original April article showed that there are 92 possible ways to arrange eight queens on a chessboard so that none of them threatens another.
	www.atarimagazines.com /v4n5/8queens.html (229 words)

	5.8 Backtracking
		diagonals.The problem asked,is how to put n queens on the chessboard,so that the square of every queen is not controlled by any other queen.Obviously for n=2 there is no problem to the solution,while for n=4 a valid solution is given by the drawing below.
		are rejected because 2 queens can not be on the same row.Now the solutions are the permutes of n pointers,which is n!
		For n=4 this method produces the indirect graph of the following picture,and does not produce the 4!=24 leaves of all the candidate solutions.
	students.ceid.upatras.gr /~papagel/project/kef5_8.htm (319 words)

	Apartments Section 8 In Queens New York
		User friendly guide to apartments section 8 in queens new york.
		One landlord told her she had no Section 8 apartments, though several brokers had her...
		Section 8 Tenants Win The Right To Stay In Their Rent-Stabilized...
	www.apartmentsforrent4u.com /apartmentssection8inqueensnewyork.html (548 words)

	The 8-queens problem
		Place 8 queens on a chess board such that no queen can capture another.
		Without a configurator it is not easy to place eight queens manually.
		The number of different ways to place the eight queens is enormous: 4,426,165,368 ways.
	www.configit-software.com /p_22.html (124 words)

	Stan's NetChess - 8 Queens Puzzle with help
		Try to put 8 queens within the chessboard, without one being able to attack the other.
		A queen placed on a chessboard in a chess game has the ability to attack and destroy any chess piece on its vertical, horizontal and diagonal grids.
		Click on a queen to remove it from the table.
	www.stansco.com /netchess/queens_help.html (99 words)

	The 8 Queens Puzzle (Site not responding. Last check: 2007-10-25)
		This is an old puzzle and a popular homework in programming courses.
		The problem is to place 8 queens on a chessboard, so that no queen is beaten by another.
		/* x[i] = x coordinate of queen in row i.
	www.ijon.de /comp/programme/damen/damen_en.html (116 words)

	literature for sale
		Cost is $8 per title (unless stated otherwise), even when some have two video cassettes, plus shipping.
		Queens Die Proudly by W.L. White 1943 story of a B-17 in the South Pacific hb w dj, tattered
		8 and 9, Fourish for Glorious John, presented by the Philharmonia Orchestra, Leonard Slatkin, conducting.
	www.aeroknow.com /litsale.htm (4512 words)

	8 Queens Puzzle
		The objective is to place 8 queens on the board so that they do not interfere with each other (according to the chess rules).
		Either your browser does not support JavaScript (Shame on her!) Or she does, but JavaScript is not enabled (Shame on you!).
		Click on the square where you want to position the new Queen.
	www.ms.unimelb.edu.au /~moshe/recor/queen/queen.html (140 words)

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