Yes
A player can force a draw by perpetual check in a chess game by repeatedly checking the opponent's king with their pieces, preventing the opponent from making any progress and forcing a draw by repetition.
No, you do not have to say "check" when you put your opponent's king in danger in chess. It is not a required rule, but some players choose to say it as a courtesy to their opponent.
Yes, in chess, it is customary to say "check" when putting the opponent's king in danger.
No, you do not need to say "check" when you put your opponent's king in danger in chess.
The king can capture a piece and put the opponent's king in check by moving to a square where it can capture the opponent's piece while also threatening the opponent's king.
Any opponent piece, except the opponent king.
No, in chess, you do not have to say "check" when putting the opponent's king in a position of threat. It is not a required rule, but it is a common practice to alert your opponent that their king is in danger.
If your opponent in checkers is unable to make a legal move and their pieces are in a position where they are in check, then the game is considered a draw or a tie. This is because the opponent is unable to make a move to get out of check, and the game cannot progress further.
Yes, in chess, when you put your opponent's king in a position where it is under threat of capture, you are supposed to say "check" to alert your opponent.
Yes, in chess, you say "check" when you threaten the opponent's king with capture on the next move.
If you don't say "check" in chess when putting your opponent's king in danger, your opponent may not realize their king is in danger and may not make a move to protect it. This could lead to confusion and potentially unfair gameplay. Saying "check" is a common courtesy in chess to alert your opponent that their king is in danger.
For the most part, a draw occurs when it appears that neither side will win. Draws are codified by various rules of chess including stalemate (when the player to move has no legal move and is not in check), threefold repetition (when the same position occurs three times with the same player to move), and the fifty-move rule (when the last fifty successive moves made by both players contain no capture or pawn move). A draw also occurs when neither player has sufficient material to checkmate the opponent or when no sequence of legal moves can lead to checkmate.