Michael Binyon deploys chess metaphors to describe Russia’ s military push into Georgia:

Vladimir Putin lost several pawns on the chessboard – Kosovo, Iraq, Nato membership for the Baltic states, US renunciation of the ABM treaty, US missiles in Poland and the Czech Republic. But he waited.

The trap was set in Georgia. When President Saakashvili blundered into South Ossetia, sending in an army to shell, kill and maim on a vicious scale (against US advice and his promised word), Russia was waiting …

… Moscow can also counter Georgian PR, the last weapon left to Tbilisi. Human rights? Look at what Georgia has done in South Ossetia (and also in Abkhazia). National sovereignty? Look at the detachment of Kosovo from Serbia. False pretexts? Look at Ronald Reagan’s invasion of Grenada to “rescue” US medical students. Western outrage? Look at the confused cacophony.

There are lessons everywhere. To the former Soviet republics – remember your geography. To Nato – do you still want to incorporate Caucasian vendettas into your alliance? To Tbilisi – do you want to keep a President who brought this on you? To Washington – does Russia’s voice still count for nothing? Like it or not, it counts for a lot.

Let’s dwell on that chess metaphor a while.

Aron Nimzowitsch was a great chess Grandmaster. One of his famous reputed chess aphorisms is "the threat is stronger than the execution".

The sense is that one can wait for some time to play a strong chess move, letting the threat that it might happen create new advantages. However, once the move is played the threat is gone and the move stands on its own merits. And, of course, the move is ‘committal’ – once played it can not be taken back.

In this case the Russians have been watching the Kosovo precedent and waiting to move.

One possible move was to stand firm on rejecting Kosovo independence. Another was to say that if Kosovo gets what it wants, why should not some others do the same?

The Georgian episode opens the way for Moscow to play the second move, as looks to be happening: "Georgia’s territorial integrity is a dead issue".

However, Russia is a UN Security Council Permanent Member so such moves have to be wrapped in some sort of credible international law ribbon.

By parking on unbending opposition to the Kosovo precedent, Russia claimed to rule out ad hoc exceptions to a key precept of international practice in Europe in recent decades, namely that borders can not be changed without general consent.

What exactly is Russia now saying?

That if a country behaves badly enough towards minority territories, those territories can break away?

That any territory can break away if it has a strong supportive neighbour?

Or is there a new realpolitik doctrine emerging, that a new twilight zone category of small pseudo-states might emerge whose ‘independence’ is recognised by a core of supporters but not the international community as a whole? See also Transdnistria.

These questions have mind-boggling political and diplomatic ramifications rippling on down the decades to come. What looks like a strong move now may (or may not) come to look like a mistake.

For now Russia has all sorts of operational options in Georgia, using the presence of Russian official and unofficial forces on the ground to play for time and create (as we chess-players say) unfathomable complications.

For a famous example of such complications, see Game 14 of the World Championship match between Garry Kasparov and Vishy Anand. At the height of the battle (and the Championship struggle as a whole) with both players short of time, Kasparov on move 27 made a dramatic speculative knight sacrifice throwing the position wide open. He outplayed his opponent in the ensuing dog-fight.

Putin maybe has in mind a famous American example:

I don’t believe in psychology. I believe in good moves.