Either that, or he didn't believe it's possible to checkmate Giri.
Carlsen misses mate in 3. Helps Giri in getting another draw.

Either that, or he didn't believe it's possible to checkmate Giri.

It looks to me like a threatened mate in 3 (1. Rc8+ Kg7 or ...Kh7, 2. Rf7+ followed by 3. Rh8#) that wins the queen: 1. Rc8+ Re8 2. Rxe8+ Qxe8 3. Bxe8 stops the mate. It's a shame that Carlsen missed that and the win.
Correct. There was no direct mate in 3.

It's mate in 3 or resign in 1. A human would understand.
As Philidor_Legacy stated, it's a threatened mate in 3 that loses the queen, but not a direct mate in 3.

Quoting someone from the comments section of YouTube.
"The thing is that humans don't even look at moves like Re8 because they so obviously lose on the spot. Black loses literally all of his material. Sure, a computer plays it because it prevents the mate, but it's essentially a mate in 3 due to the illogical nature of playing a move like Re8. Black resigns."

Quoting someone from the comments section of YouTube.
"The thing is that humans don't even look at moves like Re8 because they so obviously lose on the spot. Black loses literally all of his material. Sure, a computer plays it because it prevents the mate, but it's essentially a mate in 3 due to the illogical nature of playing a move like Re8. Black resigns."
What I and Philidor_Legacy stated is undisputable fact. I do agree that even the threatened mate results in a bad and quick loss. However, a threatened mate in 3 that would require more moves to mate isn't quite the same as a direct mate in 3. If you refuse to admit that fact, then there's no reason for further discussion.

It looks to me like a threatened mate in 3 (1. Rc8+ Kg7 or ...Kh7, 2. Rf7+ followed by 3. Rh8#) that wins the queen: 1. Rc8+ Re8 2. Rxe8+ Qxe8 3. Bxe8 stops the mate. It's a shame that Carlsen missed that and the win.
Yes indeed. Mr Carlsen is a great player but he is a long way short of Karpov and Kasparov.
There is a video of him beating three players blindfold which I find truly impressive.
The difference between computers and humans in the position above is computers do not feel the pressure of being material down.
Using a rough material count Mr Carlson is minus two and the bishop check allows equalisation of the rough material count by winning the bishop for rook exchange.

It looks to me like a threatened mate in 3 (1. Rc8+ Kg7 or ...Kh7, 2. Rf7+ followed by 3. Rh8#) that wins the queen: 1. Rc8+ Re8 2. Rxe8+ Qxe8 3. Bxe8 stops the mate. It's a shame that Carlsen missed that and the win.
Yes indeed. Mr Carlsen is a great player but he is a long way short of Karpov and Kasparov.
There is a video of him beating three players blindfold which I find truly impressive.
The difference between computers and humans in the position above is computers do not feel the pressure of being material down.
Using a rough material count Mr Carlson is minus two and the bishop check allows equalisation of the rough material count by winning the bishop for rook exchange.
Lol, your argument is hardly valid. Do you know how a strong player evaluates a position? They look at candidate moves, at least 3 to 4 of them, and then after analyzing the various lines that originate from those moves, he picks the best move.
Now tell me, what are the possible candidate moves for white in this position? Let's look at the three most promising moves.
1. Bf7+ - White equalizes material, nothing else.
1. Rg5+ - After Kh8, Black is holding.
1 .Rc8+ - Presto, white gets mated in 3.
This simple process of elimination was all that was required, for Magnus to find the move.

Bet Fischer would've seen it.
* Lights blue touch paper and stands back.
Can you find it? I bet you can.