Check

Check means a king is currently under attack by an enemy piece. It's not the end of the game; it's a signal that the player in check must respond immediately on their next move. There are exactly three ways to get out of check: move the king to a safe square, capture the attacking piece, or block the attack by placing a piece between the attacker and the king (this last option only works against a queen, rook, or bishop, since a knight's attack can't be blocked). A player is never allowed to make a move that leaves their own king in check.

Checkmate

Checkmate happens when a king is in check and none of the three responses above are available: the king has no safe square to move to, the checking piece can't be captured, and the attack can't be blocked. It ends the game immediately, and the side who delivered checkmate wins. Despite the phrase "capturing the king," the king is technically never captured in chess; the game simply ends the moment checkmate is reached, before any capture would happen.

Stalemate

Stalemate is the one that trips up beginners most often. It happens when the player to move has no legal moves available anywhere on the board, but critically, their king is not currently in check. Despite looking similar to checkmate on the surface, a stalemate ends the game as a draw, not a win, no matter how much material advantage the other side has. It's an intentional part of the rules, not a bug: the same "no legal moves" description gets a completely different result depending on that one detail.

Why the Distinction Matters

Confusing checkmate and stalemate can genuinely cost a game. A player pressing for a win can accidentally strip away every one of the opponent's legal moves without actually checking the king, converting what should have been a win into a stalemate draw. On the flip side, if you're losing badly, deliberately steering toward a position where your only pieces have no legal moves left (without ever being in check) is a completely legitimate defensive resource, and a genuine way to save half a point from a position that looks lost.

Try It Yourself

Here's a textbook stalemate: Black's king on a8 is not in check, but White's queen on b6 covers every one of its three escape squares (a7, b7, and b8) without attacking a8 itself. With no other pieces on the board, Black has no legal move, and the game is drawn. Load it into the analyzer and see for yourself:

Analyze a stalemate position →

Or set up any position from your own games on the chess analyzer to check whether you're actually giving checkmate, or accidentally handing back a draw.

Once you're comfortable with the definitions here, our guide to common checkmate patterns covers the recurring shapes, like back rank mate and smothered mate, that actually deliver checkmate in real games.