Since its return, the tournament has used an unusual point scoring system.

Go tournaments use a number of different time control systems.

The tournament used a nine player round robin league system.

Many times in my career, I've won a tournament and the next week used what felt like an entirely different swing.

Currently the following tournaments use sets as their scoring system.

This is purportedly the first time a tournament used such a starting format.

Some countries and tournaments (including Sweden) use a 10-point penalty instead.

The women's tournament used a challenge system from 1888 through 1918, except in 1917.

In seasons 1 through 3, the tournament used the following format: An opening round was played with all the teams.

From 1990 to 2003, the tournament used a stroke play format.