Chess Tiebreaks Explained: Rapid, Blitz and Armageddon

Chess tiebreaks explained for students: how rapid playoffs, blitz games and Armageddon decide a winner when chess players finish level on points.

This month two big chess events in St. Louis were decided by tiebreaks. Wesley So won the Sinquefield Cup through an Armageddon game, and several matches at the WR Women's Chess Tour in Saint-Tropez also needed one. Many students ask: what exactly are tiebreaks, and how do they work?

A tie happens when two or more players finish with the same score. In many tournaments, especially large Swiss events, ties are broken by calculations rather than extra games. A common one is the Buchholz score, which adds up the scores of all the opponents you played. The idea is that a player who scored the same points against stronger opposition should finish higher. Another is the result of the direct game between the tied players. The tournament rules always list which tiebreaks are used and in what order.

In elite events and knockouts, ties are often broken by playoff games instead. These are usually faster than the main games. A typical playoff starts with two rapid games, which might be 10 or 15 minutes each. If those are level, players may move on to blitz games of 3 or 5 minutes.

If the players are still tied, many events use Armageddon. This is a single game designed so that it cannot end in a tie. White gets more time on the clock than Black, but Black wins the match if the game is drawn. White must win, while Black only needs a draw. Organisers balance the time difference so that both sides have fair chances.

Armageddon creates interesting strategy. Black can play solid, safe chess and aim for a draw. White must take risks and create winning chances, but must also watch the clock.

What does this mean for your own tournaments? First, always read the regulations so you know how ties are broken. Second, remember that tiebreak systems like Buchholz reward playing well against strong opponents, so every game counts, even when you feel out of contention. Finally, practise some rapid and blitz games, because one day you may need them in a playoff.