Stalemate, no legal moves but not in check, is a draw, and desperate players have been weaponizing that rule for centuries. If you're losing and your king is already out of moves, any piece you have left becomes a candidate for sacrifice: if the opponent MUST capture it (or can only avoid capturing by letting you check forever), the game is drawn on the spot.
The most famous version is the "mad rook": a rook that checks the enemy king over and over, offering itself every time. Capture it, stalemate. Decline it, the checks never stop. Either way, the win evaporates. When you're completely lost, count your king's legal moves; if the answer is zero, start looking for this.
White's king on h1 has no moves at all, Black's king and queen cover everything. White's rook is the last piece.
White is dead lost, but the king already has zero moves. Save the game.