In retaliation Ms Tymoshenko tried to checkmate Mr Yushchenko by teaming up with Mr Yanukovich instead.

ECONOMIST: As Ukraine��s politicians bicker, the economy slides

The administration is obviously trying to "checkmate" a nearly identical proposal floated by Republican Sen.

CNN: Will Obama's immigration initiative sway Latinos?

The number of different types of chess problems is bewildering, from the familiar checkmate to helpmates, selfmates, series movers and series helpmates.

ECONOMIST: Self-inflicted puzzles

The winner is determined by a checkmate or a knockout.

FORBES: Start-Up For Good: How To Teach Journalism In A War Zone

But it could be a long and complex one, since the politician with the means to checkmate Mr Berlusconi is the very one with least to gain from doing so.

ECONOMIST: Italy's beleaguered prime minister

When checkmate occurs is a matter of convenience.

FORBES: China Momentum Continues, But What Does It Mean?

Is this a checkmate from the legal standpoint?

FORBES: Is Kim Dotcom's MEGA Just For Pirates, Or Do We All Need A Privacy Company?

Once our strategic oil reserves are gone, checkmate!

FORBES: How I Tried to Bomb Iran into the Stone Age: Part I

The GOP is not quite in checkmate but it is on the horizon, as Republicans have entered into what chess masters call Zugzwang, a situation in which every move available to a player simply worsens his position.

FORBES: The Grand Old Republican Party Is Over