Losing a tempo is harmful to a chess player in two ways: first, by losing time on the clock which can be scarce in [[speed chess]], and second by enduring the [[opportunity cost]] of not being able to improve a position. | Losing a tempo is harmful to a chess player in two ways: first, by losing time on the clock which can be scarce in [[speed chess]], and second by enduring the [[opportunity cost]] of not being able to improve a position. |