Bullet insanity and King's Indian Defense

What is the definition of insanity ?

What about this ?

Two very strong GMs decided to stream a 200 Bullet Chess Match. Played straight in 1 session.

The winner is @DanielNaroditsky with 102 wins. Daniel is a Stanford University graduate.

The second player is @penguingm1 also known as GM  Andrew Tang who is also enrolled at Princeton University, graduating in 2023. He won 81 games. 

There were 17 draws in total. 55%/45% score overall for Naroditsky, that's fairly close. Bullet here means 1 minute for each player. Of course these two play 30second chess, and also at times ultra-bullet at 15 seconds.

needless to say I didn't watch this entire thing live.

However,  while my bullet games are not worth spending time on , bullet chess at GM level between these 2 is something special.

They played various openings, but one which stuck was the King's Indian Defense, employed by Daniel Naroditsky, aka Danya.

Lets focus on 1 game which is worth looking at. As crazy as it may sound.

Diagram 1: King's Indian Defence starting position

Diagram 2: Danya with Black just played 7..c6. White to play

 I understand this saemisch with White playing Qd2 and Bh6. Black intends to counter-attack with b5. Something like this :

But Andrew Tang chooses 8 c5!? which is a totally different plan. in my database, it turns out that Carlsen played this against Grischuk in 2014 in World Rapid chess. it turns out the 1 minute bullet game follows that game.

Diagram 3: Black to play

Notice that Danya has used 2 seconds for 12 moves and Andrew has used 5 seconds so far. Funny opening name variation by chess.com at the very bottom of the screenshot above.

Can you guess Black's move here ? 

if you give me 3 seconds, I would look at ..Qa5 or ..d5 with Black. of course this is not what Danya (nor Grischuk) played.

The answer is 12...Nd5!. The theme is the pin on the e-file, but d5 was protected twice. White played 13 Bc1 and here we have the novelty: Danya plays 13..Nxf4 while Grischuk played 13..Nb6.

Diagram 4: Black to play -> can you find the best move ? 

There are several candidate moves. 

you may think of Rxe3 which is interesting. However, Danya played differently.

He went for Qe7. Thats a remarkable move, of course the Bishop on e3 is targeted. But so is the bishop on e2! This leaves White with Kf2 to defend the bishops, played by penguingm1.

Diagram 5: 21st move. Black to play and win

Black makes it look easy. I will let the reader find how to crown Black's strategy. ( if you want to check the solution, here's the game link https://www.chess.com/live/game/5859307707.) 

The King's Indian Defense is alive in 2020 !

Note that this bullet game took 26 seconds, 16 for White and 10 for Black. I only understood what was going on when I replayed the game at my speed, and finding out about Carlsen-Grischuk 2014 in the same line.