here's how.
Carlsen tries the Berlin Defence, aka Berlin Wall Kramnik used against Kasparov in 2000.
1 e4 e5 2Nf3 Nc6 3Bb5 Nf6.
Smartly, Hikaru does not take on c6 but plays the best anti-berlin move 4 d3.
this is how he felt at the end
Position 1 : position after 7 Qe2
Hikaru just played 7 Qe2! He hasn't committed his king to either side, and is asking Black, how do you continue ?
Lets fast forward on Black's 11th move 11..Ne6
Position 2 white to play
Magnus with Black is planning either 12..Nf4 or 12..Nd4 which will attack Whites king.
He overlooked an important feature, White can take on e5. Hikaru played 12Ne5!
Magnus thought e5 was indirectly protected. But 12..Nd4 13Nf7! Nxe2 14 Nxd8 and the knight on d8 is en prise but so is the knight on e2. White would be 2 pawns up. Magnus played 12..a5 but White replied 13 Qh5!
Key position #3 after 17 Bc3
White has 3 pawns for a piece. Moreover, white threatens Qh8+ followed by Qh7+. White can castle queenside and play h4-h5. Black is busted.
What to see the entire game ? replay below.
Now, I hope Hikaru sees this post and this forum, active Hikaru nation here, beyond Twich Community he often talks about. Can one of you on Twich send him the link to this post and forum ?
Note that in final position if Black plays 22..bc3 white would answer 23 0-0-0+ Ke7 24 Nd5+ and sadly Magnus would have to part with his queen to continue the game. White is 5 pawns up in final position, hence Hikaru big smile today. good opening prep using Caruana's game (keep in mind Caruana defeated Hikaru in 2016 in the candidates in the same opening except Hikaru was Black !)