PGB161

White 1 puts three black stones into atari to try to cut off a black group in the center.

Black 2 saves the three stones. Black cannot ignore the threat because in this case the white big dragon would live and White will have an easier game.

White 3 jumps away to avoid a geta and attacks a black group in the center.

Black tries to escape with 4.

White 5 separates the black groups.

Black tries to connect to the main forces with 6 and White plays solidly at 7, trying to catch a group to the left. If White succeeds in catching it there is a possiblity of an approach ko.

Black escapes with 8, attacking at the same time a white group. Now White tries to cut off Black's center group with 9 and Black answers at 10, creating a threat against the bottom.

The fight is very complex and both opponents certainly make a lot of mistakes (at every move). In conditions of a strict time control it is impossible to read out all possible variations.