## What is 8 queen problem explain with algorithm in detail?

The eight queens problem is the problem of placing eight queens on an 8×8 chessboard such that none of them attack one another (no two are in the same row, column, or diagonal). More generally, the n queens problem places n queens on an n×n chessboard. There are different solutions for the problem.

**How many fundamental solutions are there for the eight queen puzzle?**

12 fundamental solutions

For example, the eight queens problem has 92 solutions, but only 12 fundamental solutions.

**How many solutions are there to n queens problem?**

It has long been known that there are 92 solutions to the problem. Of these 92, there are 12 distinct patterns. All of the 92 solutions can be transformed into one of these 12 unique patterns using rotations and reflections.

### What’s the problem with 8 queens on a chessboard?

The eight queens problem is the problem of placing eight queens on an 8×8 chessboard such that none of them attack one another (no two are in the same row, column, or diagonal). More generally, the n queens problem places n queens on an n×n chessboard. There are different solutions for the problem. Backtracking | Set 3 (N Queen Problem)

**How do you solve the 8 queens problem?**

Now that you know how backtracking works, we can solve the full-sized 8 queens problem. Below, there is a chessboard you can play with to practice your skills and find a solution. Start by placing the first queen by clicking on the top-left square of the chessboard.

**Where do you place n queens on a chessboard?**

More generally, the n queens problem places n queens on an n×n chessboard. There are different solutions for the problem. You can find detailed solutions at http://en.literateprograms.org/Eight_queens_puzzle_ (C)

#### When do you attack a queen in chess?

This really isn’t necessary (unless you love endgames, at least), as the queen is often vulnerable to attack if brought out too soon. An attack on the queen is almost like a check, because the opponent will almost always have to save their queen. You can often use an attack on an exposed queen to gain time to move your piece…