Lee Sedol vs Alpha go

[Cassandra]

Indeed, Lee is to be congratulated on digging himself out of the snowdrifts of a blizzard of well-intentioned advice.

Apparently, Lee Sedol is in HIS flow now.

Just playing around like a little, light-heartedly child.

If he is able to keep this attitude, it is not unlikely that he will win game #5, too.

[pookpooi]

I can't believe Russian Go Federation put a petition to make match 6-7 happen, everyone is very tired at this point, plus playing with strange behavior ai might result in worse overall performance against human

[Charlie]

I can't believe Russian Go Federation put a petition to make match 6-7 happen, everyone is very tired at this point, plus playing with strange behavior ai might result in worse overall performance against human

Ja. I agree. I'd much rather see DeepMind go home, work on their Engine and let one of the other up-coming competitors (AMD; Facebook) bring a challenger to the arena, preferably against a different Pro. After that, we can have a bout between the bots themselves and, only then, it will be time for further games between AI and human.

[pookpooi]

Agree, i prefer DeepMind to work on other game, StarCraft maybe, they talk about it a lot, the plant has already seed into computer go community, other programs like Zen, crazy Stone, Facebook, AMD are already competing in this.

[RobertJasiek]

After game 3, my advice to Lee Sedol is the same as before game 1: instead of fighting locally, he must, from the beginning, go for global, long-term interaction including good positional judgement...

Contrary to this advice, it was by putting pressure on AlphaGo with complicated tactical reading that Lee managed to elicit a mistake and win the 4th game.

Why, did he read my advice?!:)

Game 4 consists of these stages: 1) Lee's opening with global planning and some long-term planning, 2) his mistake of letting Black get a center wall, 3) light reduction hamete play followed by offering the upper center as a sacrifice, 4) Black's improper capture and White's rescue plays, 5) the losing Black with desparare play.

During stages 1 and 4 and maybe 3, Lee's play conformed to my advice. During stage 4, Lee also used complicated reading. Maybe I have not worded my advice clear enough; I have not meant to prohibit complicated, CORRECT reading but I have suggested to avoid only relying on INCOMPLETE local reading, which Alphago does better most of the time.

[trout]

Lee Sedol had a fun with family during break...


5th game;

AlphaGo defeated Lee Sedol by by resign. (0.5 or 1.5)
AlphaGo vs Lee Sedol 4:1


What a game it was while it lasted...

-END-

[Cassandra]

For game #5:

Here is what two electronical "seniors" thought about the winning probability of their youthful buddy.
Please note that the CS-graph for #5 runs parallel to that for #3.

Please be careful while interpreting the diagrams.
I suppose that "EQUAL" is ABOVE 50 %, maybe something about 55 %, at least.

CS2012.jpg (172.94 KiB) Viewed 5103 times

MFGo12.jpg (101.8 KiB) Viewed 5103 times