Rules :: What is stalemate?
A player is stalemated when he has no legal moves that he can make and he is not in check. (If he was in check it would be checkmate).
Here are a few diagrams where black is stalemated.
The White Queen is controlling the 3 squares the Black King has access to, so if it is black's move, this is a stalemate, and the game is a draw.
As shown by the arrows, the white pieces are controlling all the possible escape squares of the King, also the black pawns cannot move. This is therefore stalemate.
Stalemate arises when a player's turn comes, he is not in check and he has no legal move. Stalemates result in the game being a draw.