## How do you know if a slide puzzle is solvable?

- If N is odd, then puzzle instance is solvable if number of inversions is even in the input state.
- If N is even, puzzle instance is solvable if. the blank is on an even row counting from the bottom (second-last, fourth-last, etc.) and number of inversions is odd.
- For all other cases, the puzzle instance is not solvable.

## What are sliding block puzzles called?

A sliding puzzle, sliding block puzzle, or sliding tile puzzle is a combination puzzle that challenges a player to slide (frequently flat) pieces along certain routes (usually on a board) to establish a certain end-configuration.

**How do you solve a 2×3 slide puzzle?**

If the puzzle is solvable, then what you have to do is just putting 1 2 on the top (then the rests will automatically be solved). Then voila, just rotate them all so 1 2 will be on top!

**What is the world record for the 15 puzzle?**

The fastest time to solve 10 Fifteen puzzles is 2 min 49.47 sec, and was achieved by Mitchell Fariss (USA) in Dahlonega, Georgia, USA, on 27 February 2017.

### How does a slider puzzle work?

Most sliding puzzles are two-dimensional. The pieces cannot be lifted out of the frame or rearranged in any way, except by sliding them into an empty space. They are also called sliding-block puzzles or simply sliders. The goal of a sliding puzzle is to arrange the pieces in a particular pattern.

### How many hours does it take to do a 1000 piece puzzle?

3-4 hours

On average, most puzzle solvers take usually 3-4 hours to solve one 1000 piece puzzle, when done on a stretch.

**What is the average time for a 500 piece puzzle?**

If it takes you 1 hour to finish a 250 piece puzzle, then on average it will take 2 hours to complete a 500 piece puzzle and 4 hours to complete a 1000 piece puzzle.

**Is 1000 piece puzzle hard?**

The mathematicians tell us (and they can prove it!) that all other things being equal then the DOUBLING of the number of pieces QUADRUPLES the level of difficulty. Thus a 1,000 piece puzzle is four times as difficult as a 500 piece one and a 4,000 piece puzzle is 64 times as difficult as a 500 piecer.

#### How long does it take to solve a slider puzzle?

My record for slider puzzles is currently 3 mins 24 seconds. You just solve the top row, second, third, and then the 4 squares on the left, then the 5 on the right. I remember my first clue ever (probably 2006) I tried using one of these.

#### What can I expect during the C-section recovery process?

During the C-section recovery process, discomfort and fatigue are common. To promote healing: Take it easy. Rest when possible. Try to keep everything that you and your baby might need within reach.

**What is the best algorithm for solving sliding puzzle?**

A* algorithm with Manhattan distance heuristic gives the most optimal results among all of the implemented algorithms. It stores very little nodes, finds the solution with expanding very little steps and time. With this algorithm, the efficiency of Manhattan distance heuristic for sliding puzzle is proved.

**How to make the program solve the puzzle?**

For making the program solve the puzzle, click on the algorithm among the radio buttons and click the “Solve” button. For different algorithms, buttons will be displayed in different colors.