On: Alpha Go Zero: How and Why It Works

[nojvek]

Or 100% rate of a draw. Like tic tac toe.

[gamegoblin → nojvek]

Due to komi, a go game cannot be drawn. That is, the 2nd player is awarded some number of points for the disadvantage of moving 2nd, and that number of points typically has a fractional 0.5 in it to break ties.

The most common komi values these days are 6.5 or 7.5, depending on ruleset.

[dvdkhlng → gamegoblin]

Depending on the rules, a game may be drawn due to an "eternal life" (an endless forced repetition).

https://senseis.xmp.net/?EternalLife

In Go this is very rare (as opposed to e.g. chess).