Commentators have been saying that after alphago, Ke Jie's game has gone up another level. Before he might win after getting into trouble and messing around, taking advantage of his reading skill to reverse the game, but after alphago, he seems to win games so smoothly, and his opponents can't work out where they went wrong.
But Ke Jie almost messed up horrifically in his latest game. Wang Yao 6p (on weiqitv) suggests that it is difficult for him, having so many interviews and TV meetings each week, spreading the word about go after his alphago match.
He played a lovely game up until 170 (should be O11), but proceeded to lose so many points (maybe about 10?) in the endgame, say at 188, but notably at 224, especially as 229 leaves a sente 6 point+ follow up now rather than sente 3 point. The weiqitv commentators were speechless, having just said how hopeless it was for Tang, against any professional, B wouldn't consider the possibility of winning, especially as there is no endgame left.
Ke Jie appears to go crazy and fights back with 230, utilising the aji of his dead stones at F5, and holds on to win by 0.5.
__
Otherwise
32 was a nice move aiming at the corner cut
70 was interesting, hard to tell if it is overplay or not, 73 seems questionable, but it isn't clear how B should attack. W made the D10 G15 shape look too thin. The invasions on either side were the highlight of this game.
| Attachments: |
__go4go_20170902_Tang-Weixing_Ke-Jie.sgf [2.13 KiB]
Downloaded 1896 times |
Ke realised his formation was bad: to be better either move high extension to low so there is no slide (AlphaGo would then shoulder hit the extension, they looked at some variations), or move 3-3 to 4-4. He had thought about reinforcing for his previous move (e.g. big knight shimari to lower side) but that was unsatisfactory as white can still easily sabaki on the right side.
was bad, -3% said AlphaGo. It liked to just tenuki and invade at the top (seems to me a you-destroy-my-thing so I-destroy-your-thing balance, as more stones added to area it gets smaller, also if black invaded there before right side extension and white pincered then AG liked black to tenuki and extend on right side, already made top smaller in sente).
was bad, -2%. It preferred 2 space jump to b to grow lower side (Ke never considered), after peeping ladder on left exchange. Its thin shape made Ke uncomfortable.
was sharp, Ke didn't expect it: even normal answer to the kick was bad for him. Apparently some other humans, maybe Gu Li, had suggested it though.
was bad -2%. AlphaGo preferred to just dodge to c. Fan showed a variation in which AlphaGo ended up capturing the stone on the right ("it got more territory than me in my area!" says Ke), but black squeezed the outside to develop the lower side and got sente to extend on upper right side. Damage limitation.
was bad -3%. AlphaGo says hane underneath. The trade of game was good for white.
and pincers 
, while if White had made a base for 
with an approach at "a", Black would surely have replied. 
It just might be one, though, eh?