A three-move problem mechanism invented in a composer tournament held in Bristol in 1861 by Frank Healey (1828-1906).
A clearance move by a piece along a line and over a certain square, played so that a second piece may move in the same direction along the same line and occupy that square. The first piece is not used for the mate.
ECHESSPEDIA
Quotes of the Day
Looks like I’m going to raise the average age of the field and lower the average rating!
Garry Kasparov 2017
It’s always more difficult to hold the title than to get it.
Vladimir Akopian 2012
Tactics is what you do when there is something to do; strategy is what you do when there is nothing to do.
Savielly Tartakower
When you see a good move, look for a better one
Emanuel Lasker
A good sacrifice is one that is not necessarily sound but leaves your opponent dazed and confused.
Rudolf Spielmann
