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Post by BostonGo on Mar 9, 2016 22:59:40 GMT -4
Computer vs Man at the game of Go for 1 million Dollars. Tonight 3/9/2016 a computer will take one of the strongest go players in the world on Youtube. Commentary by American Go Professional Michael Redmond. Watch DeepMind's program AlphaGo take on the legendary Lee Sedol (9-dan pro), the top Go player of the past decade, in a $1M 5-game challenge match in Seoul. This is the livestream for Match 1 to be played on: 9th March 13:00 KST (local), 04:00 GMT; note for US viewers this is the day before on: 8th March 20:00 PT, 23:00 ET. In October 2015, AlphaGo became the first computer program ever to beat a professional Go player by winning 5-0 against the reigning 3-times European Champion Fan Hui (2-dan pro). That work was featured in a front cover article in the science journal Nature in January 2016. Match commentary by Michael Redmond (9-dan pro) and Chris Garlock.
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Post by BostonGo on Mar 10, 2016 10:14:46 GMT -4
My online commentary as the game was played...
Just started.
Chinese rules 7.5 komi.
Komoku! Hoshi
Will be explaining the game.
Komoku...human (black) playing conservative. Hoshi Keima Kakari...Very common. Keima...Very common joseki.
White will attack soon on the right.
Black stone on the top left is being isolated.
White stone on the right need to be careful.
White is running and hoping to make at least one moku on the edge needs two to live.
Black is chasing white and making territory at the same time, but white can run faster since it is a single line of stones.
Black needs to get into the big space on the left somehow.
If black can make the stone in the upper left live he will be in a good position.
Even if you do not understand the game you see that black is chasing white out into the center while surrounding territory on both sides, but white still has structure (moyo) on the left.
White is starting a counter attack on the attacking black stones on the left.
Notice how young Lee Sedol is.
Black as to attach but is using the time to look further into the game since there are time limits for moves.
White will cut (kiru)...separate black's stones.
White did cut and now black can cut the white group inside.
Black did not cut but peeked (nozoku) instead he allowed white to connect but to be weak.
The round white walls look good on the left. Black cannot lose sight of it.
Black needs to help the lone black stone at the top by playing above the two white stones at the top or into the corner.
Also time is ripe to play on the left side where there is lots of space.
White has to play out from the three stones in the fight.
White is in big trouble with the three stones that are being surrounded. If those stones are lost Black will likely win the game because black will not be stopped from getting territory in the center.
Black will play out (nobiru) and then there will be a shicho (ladder) looks like White will be okay because there is a breaker stone at the star (hoshi) point.
Kosumi?...Nope hane...Black looks better with his moves...Nice!
No matter how strong a player you are...counting liberties is the most important thing you can do.
Black needs to play out from the lone black stone to keep white contained.
The four black L shaped stones are in danger but black can put white in atari (one move from capture) if he acts soon.
The black move at the top kills removes white's ability to make an eye at the top so he can chase the white group some more.
White looks strong in the upper right after closing out the lone black stone. If you look closely you can see sort of a circle shape. I would be difficult for black to live (make two eyes that cannot be filled with a single move) within that circle.
Redmond just explained watari on the edge.
I'm not sure why black is delaying capturing the two white stones in the center.
The single white stone in the lower center can live because it would be chased to the friendly stone in the lower left on the hoshi (star) point.
White needs to ikkentobi (one space jump) out to the left from the center.
White used a kosumi instead very complicated.
Nice move by white...Essentially netted the two black stones on the left.
If you look closely you can see that black has set up some influence with loosely connected stones that form a curve to get into the lower left.
All the white linear stones right of center will likely live but will create very little territory.
Black is winning at this point.
If black gets a few stones in the apex of the right angled black line from the center the bottom left black will likely get a decent piece of territory in the lower left.
I'm a mind reader...Black did as I said as I was typing.
If I were black I would play one point above the star point in the lower right to help secure that territory.
Too late...White just started an attack on the lower right corner.
Because Black is at kosumu it would be hard to kill black in the corner so black will be able to live in the corner and push out to reduce white's territory, meanwhile the black territory upper right is safe even if separated. White is making an attempt to live but also reduces black's territory on the side.
Black feels comfortable in the corner and increases moyo in the center bottom left.
By playing on the other side of the white stone in the lower left corner on the star point black has reversed the influence in that area and now black has the upper hand in the lower left but is risking the loss of the lower right corner.
Black is winning this game at this point with potential territory that encompasses nearly the entire lower left quarter of the board...Go human!!!
To be clear...White will has the potential for a large territory in the upper left and a smaller territory in the lower right but black has a decent territory along the left side and can do so by trading moves with white having to keep the line of stones on that side connected.
The focus after the bottom left will turn to the middle left.
I would like to hane (turn) the four white stones in the bottom right to support the corner.
The two stones together near the edge is referred to as an iron pillar. It looks simple but is very strong because you can play on both sides.
Interesting that Redmond anticipates a ko (reciprocating move) in the lower right corner. He must have already worked out the the joseki...Amazing.
White created territory along the left side that I did not anticipate...Cool.
Isn't this exciting...LMAO...I know...WTF???...Too funny.
White beat black to the hane in the bottom right...ouch!
White is going after the black group at the center top.
A play into the side by white?...Very aggressive this computer is.
The keima into the middle of the territory is intended to create sabaki and more liberties to attack the black stones above.
As explained the key at this point is solidifying the right side but ending in sente (incentive) to move to the upper left.
The territory in the middle on the left will be split. White will get 20 or so points in the top left. White can still cut black of the right side as well.
With white securing the top left the bottom right is the fight to decide since the left side will be split.
It's going to tough for black in the bottom right. One stone against big walls.
If this was a normal game I would think black has won but...
If I were white I might try a long reach down the left side. Maybe diagonal towards the top right from the star point.
How great would it be if black killed the long straggling white group?
White may have gained points in the lower right but that long string of white stones is in real danger.
I don't see where white expects to get two eyes...I'm missing something. Redmond just showed how but I missed it because I was typing.
White made bad moves so black could kill with nakade so has to defend.
They just talked about what I saw on the left.
I don't understand the reason for taking those two black stones in the lower left instead of reaching down the left side.
I can see a potential explosive ko fight in the bottom left on the border.
I'm a genius...LOL...Just when I said it.
Yay!...I called it and they just started fighting.
So they are in the endgame where the computer has an advantage.
White might win after securing the big corner in the top left...Very close game.
Time may be an issue but the computer can use raw calculations from here on out.
The human resigned.
History made.
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