exactly one square horizontally, vertically, or diagonally

any number of vacant squares vertically or horizontally

any number of vacant squares in any diagonal direction

any number of vacant squares diagonally, horizontally, or vertically

any number of vacant squares diagonally, horizontally, or vertically

exactly one square horizontally, vertically, or diagonally

any number of vacant squares vertically or horizontally

one square along any rank or file and then at an angle

any number of vacant squares diagonally, horizontally, or vertically

forward one square, if that square is unoccupied

one square along any rank or file and then at an angle

any number of vacant squares in any diagonal direction

forward one square, if that square is unoccupied

one square along any rank or file and then at an angle; viewed as an “L”

one square horizontally, vertically, or diagonally

any number of vacant squares vertically or horizontally

any number of vacant squares vertically or horizontally

forward one square, if that square is unoccupied; two squares on first move only

exactly one square horizontally, vertically, or diagonally

ne square along any rank or file and then at an angle

During castling

When another piece is pinned

When the king is in check

After white has made a move

king

knight

pawn

rook

Neither king nor rook involved in castling may have moved from the original position

There must be no pieces between the king and the rook

The king may not currently be in check

The king is not allowed to pass through or end up in a square that is under attack by an enemy piece

may only occur when a pawn is moved two squares on its initial movement

the opposing player has the option to take the moved pawn “en passant” as if it had only moved one square

can happen anytime the pawn moves throughout the game

allows the pawn to take any opposing piece directly in front of it.

The pawn has made it across the board, and can now be converted to a queen, rook, bishop or knight, as the player desires

may only occur when a pawn is moved two squares on its initial movement

only time in the chess game when more than one piece moves during a turn

the pawn has made it to the middle of the board and can now be converted to a queen, rook, bishop, or knight, as the player desires

4

5

6

7

the king is threatened

the king has no where no move

the king is pinned

there are no more available moves

the king is threatened

the king is not in immediate danger, but has not legal moves

occurs when a king is being threatened and must move

occurs when a king is placed in check and has no legal moves to escape

occurs when the king is threatened, and must remove the threat

occurs when the king has no more legal moves

happens when the king is not in immediate danger, the player who has to move has no legal moves available, which would all result in putting the king in danger

happens when the king is pinned

9

5

3

1

9

3

5

1

5

3

9

infinite

infinite

3

5

1

3

5

1

9

infinite

9

5

1