Check vs. Checkmate vs. Stalemate: How to Tell Them Apart

Check: the king is attacked, but the game may continue

Check means an enemy piece attacks your king. You must answer the attack on this turn. If at least one legal defense exists, the position is not checkmate.

In the first diagram, Black’s king on a8 is checked by the white queen on a1. The a-file is dangerous, but b8 is safe. Black can move there and keep playing. A check does not become mate just because the checking piece is a queen or the defender is far behind in material.

• Check in Chess: The Three Ways to Get Out of It

Checkmate: the attack has no legal answer

Place White’s queen on b7 instead, supported by the king on c6. The queen now checks Black’s king diagonally and controls its escape squares. Black cannot capture the queen because White’s king protects it.

There is no available block or other capture. The game ends as a win for White. Notice how the conclusion comes from testing defenses, not from simply seeing the queen next to the king.

• What Is Checkmate? How to Know the Game Is Over

Stalemate: no legal move, but also no check

Now place the queen on c7. Black’s king on a8 has no safe destination, but the queen does not attack a8. Black has no other piece to move. This is stalemate, and the game is a draw.

The difference from the mating diagram is only the queen’s square, yet the result changes completely. If Black had a pawn with a legal move, the trapped king alone would not establish stalemate. You must check the whole side’s options.

• What Is Stalemate? Why a Trapped King Can Mean a Draw

Pause at any move in a diagram, then open that exact position in Chat to ask about it or in Coach to practice.

Use the same two questions every time

First inspect the king of the player whose turn it is. Is that king attacked? Then look for any legal move by that side, including captures and blocks by pieces far from the king.

Check plus no legal response is checkmate. No check plus no legal move is stalemate. If a legal move exists, the position is neither mate nor stalemate, although it may still be check. Other draw rules are separate from this test.

Practice by identifying each diagram before reading its caption. For check, name a legal defense. For mate, explain why the queen cannot be captured. For stalemate, show that the king is not attacked. Those reasons are more useful than guessing the label.

• King attacked + no legal defense: checkmate; the attacker wins.
• King not attacked + no legal move: stalemate; the game is drawn.
• At least one legal move: neither checkmate nor stalemate.

Check your understanding

Continue learning

• Check in Chess: The Three Ways to Get Out of It
• What Is Checkmate? How to Know the Game Is Over
• What Is Stalemate? Why a Trapped King Can Mean a Draw
• How to Avoid Stalemate When You Are Winning