Lessons from the games of Magnus Carlsen are usually related to positional chess or endgames. Here we have position after move number 46, Carlsen has an extra pawn but there are opposite colour bishops on the board:
Q: Do you see any winning chances for Carlsen?
A: Yes, the position on the board offers winning chances to White because of:
1. Black’s passive king: Black has weakness on b6 and the king can’t go and defend it due to Black’s king side pawns being placed on light square. White’s bishop could easily eat them in the absence of Black’s king.
2. Black’s passive bishop: Black’s bishop will not be able to attack White’s king side via d4 route due to tactical reasons which I will explain later on. The other routes are slow as White’s king can quickly attack b6. So Black’s dark square bishop has to occupy a passive position.
White has winning breakthrough and brilliant manoeuvre to win a second pawn, which is really hard to spot:
Heading towards b5.
1…Kf8 2. Kd3!
2…Bf6 3. b3 Bb2
3…Bd4 is not possible because of 4. b4 Bf2 5. a5! cxb4 6.a6!!, and Black’s bishop can’t touch White’s king side and eventually would have to sacrifice the bishop for White’s rook pawn.
4. Bd5 Ba3 5. Kc4 Bb4 6. Kb5 Ba5 7. Bc4 Ke7 8. Kc6
A very important move, not allowing Black’s king to defend b6. Had White not done this Black’s free bishop can capture pawns on the king side and the game might ended in draw.
8…Kf6 9. Bd3 Kf7 10. h5!!
Black has to take otherwise white can take on g6 followed by g4 wins a pawn and the game.
10…gxh5 11. Bxf5 Kf6 12. Be4 Kg7 13. Bf3 Kh6 14. Kb5 Kg6
Now White needs his bishop on e8 or f7 with Black to move would result into winning more material.
15. Bd1 Kh6 16. Be2 Kg6 17. Bf3 Kh6 18. Bc6
White threatens Be8, so Black resigned.