Boomie: <An Englishman: What have the silicon monsters to say about Aronian's shocker?>Alas, the silly cons are skeptical. They give black a near winning edge and propose 18. Rf3 as equal.
18. Rxf7
<(Stockfish 8 64: 18. Rf3 Bf5 19. Raf1 Bg6 20. Re3 Qa5 21. Rxe4 Qxa3 22. Rxe8+ Rxe8 23. e4 b5 24. Rb1 a6 25.
Bf3 f6 26. Bg2 Kf7 27. Bf3 Kg8 0.00/34)>
18... Kxf7 19. Rf1+ Bf5 20. g4 g6 21. Qc1 Kg7
Here Grischuk loses about half of his advantage.
<(Stockfish 8 64: 21... Re6 22. Qh6 Kg8 23. gxf5 gxf5 24. Qh3 Rf6 25. Bc1 Raf8 26. Bf4 Rg6 27. Be5 Rf7 28. Kh1 Qe6 29. Qe3 b5 30. Rg1 a5 31. a3 Qc6 32. h4 h5 33. Kh2 Kh7 34. Bf3 Rxg1 35. Qxg1 Qg6 -1.68/25)>
22. gxf5 gxf5 23. Bxe4 fxe4 24. Qf4 h6 25. Qc7+ Kh8
The rest of black's advantage disappears.
<(Stockfish 8 64: 25... Kg6 26. Rf4 Rg8 27. Kf2 Rae8 28. Ke3 h5 29. Be7 Rg7 30. Rf6+ Kh7 31. Qc5 Qg5+ 32. Qxg5 Rxg5 33. Bd6 Ra5 34. Rf7+ Kg6 35. Rxb7 Rxa2 36. Rc7 a5 37. Rc6 a4 38. Bf4+ Kf5 39. Rc5+ Kf6 40. Rxc4 h4 41. Rc6+ -0.84/30)>
26. Bd6 Rg8+ 27. Kf2 Rg6 28. Be5+ Kg8 29. Ke3 Rd8
The losing blunder.
<(Stockfish 8 64: 29... Re8 30. Kd2 b5 31. h4 b4 32. h5 e3+ 33. Kxe3 Rg3+ 34. Kd2 bxc3+ 35. Kc1 Rg5 36. e4 Qe6 37. Rf6 Rg1+ 38. Kc2 Rg2+ 39. Kb1 c2+ 40. Kc1 Rg1+ 41. Kxc2 Rg2+ 42. Kb1 Rg1+ 43. Kc2 0.00/32)>
Given that Grischuk was yet again in terrible time trouble, a surprise like Rxf7 might be just what is needed to provoke blunders. Lasker would have loved the psychology of putting pressure on somebody short of time.