The last round game from Dortmund 2015 - an Evans Gambit.
Lovely Pawn-Promo Combination coming up.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 {150 years ago if one did not play 4.b4 here you were considered a Victorian vagabond and marched out of the chess club.} 4... Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 {Some books simply state that 7...Qe7 losses a piece but see next game.} 8. dxe5 Bb6 {Black gives back the pawn to chop wood in particular that c4 Bishop.} 9. a4 {Apparently a new move here, 9.Nbd2 is the line I know.} 9... Na5 10. Qa2 Nxc4 11. Qxc4 Ne7 12. Ba3 O-O 13. O-O Re8 14. exd6 cxd6 15. Rd1 {White has play on the d6 pawn but is does appear Black planned to sac it to gain developing time.} 15... Qc6 16. Nbd2 Be6 17. Qxc6 Nxc6 18. Bxd6 Rad8 {This is what Black saw coming. This is a two Bishops position and Black has both of them. White has weak pawns and his pieces are a bit passive. I don't think White is losing but it's not too pleasant to play.} 19. Bb4 Rd3 20. a5 {Played to get the Bishop off that diagonal with a view of playing Nd4. White is giving back the pawn to swap off one of the Bishops..} 20... Bc7 21. Nf1 Rxd1 22. Rxd1 Nxa5 23. Nd4 Nc4 24. Nxe6 Rxe6 25. Rd7 {This is what White saw when giving back the pawn. his pieces are a better placed than before, just needs to get the Knight into the game.} 25... Rc6 26. Ng3 g6 27. Ne2 a5 {That is a very clever well thought out move by Caruana. It looks on the surface like a minor blunder.} 28. Nd4 {It does appear 28...Ra6 or 28..Rb6 is forced. Infact White is only two moves away from resigning.} 28... axb4 29. Nxc6 b3 {30.Nb4 b2 321.Rd1 Nd2! is easy to see as a Black win But has Black missed....} 30. Rxc7 {...and now 30...b2 losses to 31. Rxb7.} 30... Nd6 {There is the wee beauty beauty Caruana saw a few moves ago. The b-pawn cannot be prevented from promoting. White resigns.}
That 7...Qe7 blunder
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qe7 {As I said above a few books or notes to games in this position say this losses a piece due to...} 8. d5 Nd4 9. Nxd4 exd4 10. Qb5+ Kd8 {I think this is the move they miss and only see 10...Bd7} 11. Qxa5 Qxe4+ 12. Kd2 {Possibly best. 12.Kd1 or 12.Kf1 meet 12...d3.} 12... Bf5 {If the Black King was still on e8 then White would just play Re1 here. This is unclear but looks OK for Black despite being a piece down. Who is attacking who? Of course if 13.Re1 then 13...Qc7 is mate.}