If a knight starts on a dark-square, it always ends on a light-square. This is the opposite of a bishop, which is confined to one square color for the entire game. In the diagram below you can see all of the potential knight moves. Note that the knight is on a light-square, so every legal move results in landing on a dark-square. Unlike any other piece, the knight can hop over other pieces. In the diagram below, White's knight on the b1-square can jump over the pawns on the second rank and move to the squares a3 or c3.
If it were any other piece, it would be unable to move at all, as it would be blocked on all sides. Always remember that a knight captures a piece only if it lands on the occupied square, not if it jumps over it! Another cool thing about knights? They can deliver devastating forks and smothered mates! A fork is when two or more pieces are attacked simultaneously. Even though this can be achieved by other pieces, the knight is the best-suited piece for this type of attack because it can attack multiple pieces that are more valuable than itself in a single move.
In the position below, Nxd7 was just played by White—notice how the black queen and both rooks are all attacked simultaneously? That's a great fork!
An advanced technique that only a knight can perform is called a smothered mate. A smothered mate is the name for a checkmate that occurs when a king is surrounded by their own pieces and cannot move out of check. Here is an example of a smothered mate.
Note how Black's king is surrounded by its own pieces after Nf7! Let's test you to see if you can recognize how a knight moves. In the following position, can White's knight on the f7-square capture Black's queen? Yes, the knight can capture the queen on the d8-square! I'm looking for a review in terms of best practices, things I should or shouldn't do, or things I should do in another way.
Split input, output and the algorithm up, they are tangled together and it makes the code much harder to read. Speaking of input, while a buffered reader is probably faster, I don't think the performance is worth it over the simplicity of a scanner. What can we say about a knights move? It moves the piece 2 squares in a line, and then 1 square perpendicular. You have listed all the possible moves, but we can just check if one of the absolute differences is 2, and the other is 1. This also means you only have to check if both of the input co-ordinates are valid and on the board, which can be done before the method.
The suggestion that you can validate the move by checking one axis moves 2, and the other moves 1, is an interesting, but not ambitious enough solution. A knight moves in a right-angled pattern, with 2 steps on one side, and 1 on the other. Pythagoras indicates that the square on the hypoteneuse is the same as the sum of the other two squares.
You can avoid the conditional checks on 1 or 2 steps, and you can also remove the Math. I really like that you have used a try-with-resources to open the buffered reader though again, spyr03's suggestion to use a Scanner is a good one.
My special point here, though, is that one of the main reasons that try-with-resources was introduced, is to ensure the resources are always closed in a sane order. There is no need to explicitly close the buffered reader at all Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. Knight moves in Chess game Ask Question. A knight is a warrior in the game of chess which looks similar to that of the horse.
Each player has two knights which are always placed between the rook and the bishop on each side. The knight has three points in chess therefore, the status of a knight and a bishop is equal in chess. The child should first learn-. A knight has a unique move in chess which is different from any other pieces in chess. This knight move makes the game of chess quite interesting and attractive to the players. The knight move is a bit complicated to understand at first because of its offbeat character of the movement.
The knight which lies on the white square ends up in the black square while the knight which starts its game from the black square ends up in the white box. The knight can be used as a masterpiece to take your game to the next level. Strategizing the knight moves in chess and using it tactfully may prove to be quite useful.
There are various strategies for using it in a proper manner.
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