Similar Positions May Be Drawn
de la Villa, position 10.4| a | b | c | d | e | f | g | h | ||
| 8 | 8 | ||||||||
| 7 | 7 | ||||||||
| 6 | 6 | ||||||||
| 5 | 5 | ||||||||
| 4 | 4 | ||||||||
| 3 | 3 | ||||||||
| 2 | 2 | ||||||||
| 1 | 1 | ||||||||
| a | b | c | d | e | f | g | h |
Not all similar positions are wins. In this position, Black draws because he can safely check from the side. For this defense to work, there must be at least three files between the defending rook and the attacking king, and the defending king must be positioned such that it doesn't block the checks; that is, the defending king is on the "short side" of the pawn (the one with fewer files between the pawn and the edge of the board) (de la Villa 2008:127–28). (See the "short side defense" at rook and pawn versus rook endgame for more details.)
Read more about this topic: Lucena Position
Famous quotes containing the words similar, positions and/or drawn:
“To relive the relationship between owner and slave we can consider how we treat our cars and dogs—a dog exercising a somewhat similar leverage on our mercies and an automobile being comparable in value to a slave in those days.”
—Edward Hoagland (b. 1932)
“Extreme positions are not succeeded by moderate ones, but by contrary extreme positions.”
—Friedrich Nietzsche (1844–1900)
“Pray, let us live without being drawn by dogs, Esquimaux- fashion, tearing over hill and dale, and biting each other’s ears.”
—Henry David Thoreau (1817–1862)