By taking the 54th Judan title Iyama Yuta completes the
grand slam, all seven major titles. These titles are:
Kisei, Honinbo, Meijin, Judan, Gosei, Oza and Tengen.
The last time a player accomplished this fact was Cho Chikun
back in 1987. Incidently, also by taking the (26th) Judan title.
After an initial lead by Lee SeDol in the final game of the match
against AlphaGo the computer fights back to eventually win by
resignation, being in the lead by about 2.5 points at that point.
This game concludes the match in which the computer prevailed by 4-1 over
top-player Lee SeDol from Korea.
See also: the complete match summary
by Hajin Lee
Lee SeDol takes one back in the match against AlphaGo.
See also: Michael Redmond's analysis
AlphaGo decides the match against Lee SeDol by also winning the 3rd game.
See also: Michael Redmond's analysis
AlphaGo also won the 2nd game of the match against Lee SeDol.
See also: Michael Redmond's analysis
AlphaGo won the 1st game of the match against Lee SeDol.
See also: Michael Redmond's analysis
AlphaGo's earlier match against 3-times European Champion Fan Hui.
John Tromp has answered the question Go players had for so many years:
"How many legal positions can be constructed on a 19x19 board?"
Well, his answer is as follows:
208168199381979984699478633344862770286522453884530548425639456820927419612738015378525648451698
519643907259916015628128546089888314427129715319317557736620397247064840935 positions.
Please read John's very interesting report.
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