What is meant by a "sharp line"?

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LaSalleStreet

TIA.

KamikazeJohnson

"Sharp" in chess lingo generally refers to a line that has winning chances for both players. So a move that provides attacking chances but also involves some risk would be called Sharp. A "sharp" position could be evaluated at close to 0 (meaning even) if chances are even, but the game is unlikely to end in a draw.

SoftStroker
That's a good question. Had I not read @KamikazeJohnson 's response, I would've continued to believe a "sharp" line to be one with a very defined initiative.

I've also heard of "quiet" moves / approaches and assumed the opposite.. perhaps more passive but more dynamic in the situation.
nklristic

Sharp line is a line where there are only a few moves (maybe even only one) that keep the player in the game.

Quiet move is a move that doesn't give a check, it doesn't attack a piece either, basically it is not a forcing move.

But quiet move as a term is mostly utilized when there is some kind of an attack, some checks were given but then one player needs to find a move that by itself doesn't capture pieces, doesn't checkmate the king, but it basically wins the game because there is no good answer to it.

For instance when there is a mating attack, and you use one of your pieces to cut of the king in order to checkmate on the next move. That could be called a quiet move.