2640

Instead of following Black with for an extreme late Guzumi Exchange, White gives Atari with , so connecting some of her stones at the left and also capturing Black's Nakade-stones.

The Jûrokubango has come to an end.

During the course of 28b's self-play training, Black's Initial Self-Play Success Ratio (the blue line in the diagram) fell steadily until it finally stabilised in the "green-yellow" range around 40%.

In the phase of the Jûrokubango, however, there is a positive trend into the "green" range.

28b's surplus of won games in the Jûrokubango (the red line in the diagram) shows a sharp rise into the positive range. This means that 28b ultimately handles this variation better than 40b.

We are looking at a valid solution here !

Please click the board for SGF-download ...
(28b = Black)

Please click the board for SGF-download ...
(28b = White)

The comments indicate the number of games in which the respective variation was selected.
E.g. "A=19 // B=264" == Variation "A" was played in 19 games, variation "B" in 264 games.
(The labelling is designed for SGF-editors that label next moves with capitals "A", "B", "C", ...)