|DrGridlock: This game appears with Bronstein's comments in, "200 Open Games." Bronstein writes after Black's 35 ... Nf5, "When the first clouds of smoke had disappeared from the battle-field, the black king made the enigmatic step from g8 to f8, the point of which only became clear after tha fantastical leap ... Nf5! A grandiose idea! At least that is how it struck me at the time of the game. I had pinned all my hopes on this blow from my cavalry. Indeed, white's queen is in a trap and the tempting check on e7 is no longer possible; it is difficult to see what White can do." |
Bronstein correctly analyzes that, "But as my main efforts had been directed towards checking the mating variation after 36 Nb6 Qc5+, I picked up the wrong piece in the time-scramble." Black does not pick up white's queen after checking with the queen on b5 instead of with the bishop on d4.
However, white does have more options on move 35. Black is threatening to pick up the white queen with the bishop check on d4. White has 3 ways to meet this threat - interpose the white knight between d4 and white's queen (on b6), move the white king so that the bishop move does not come with check, and move white's knight so it attack's black's queen. Komodo evaluates each of these as approximately equal, and each leaving an approximately level game.
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Analysis by Komodo32 3 32bit (depth = 25):
1. = (-0.05): 36.Kh1 Bd4 37.Nb6 Ng3+ 38.Kh2 Ne2 39.f4 Kg7 40.Rf1 Qc6 41.e5 Re8 42.Qa6 Nxf4 43.Rxf4 Bxe5 44.Qxc4 Qxc4 45.Nxc4 Bxf4+ 46.Kg1 Re2 47.Kf1 Bb8 48.b3 Bg3 49.Rd1 Rf2+ 50.Kg1 Rc2 51.Kf1 Rf2+
2. = (-0.05): 36.Nb6 Bd4+ 37.Kh1 Ng3+ 38.Kh2 Ne2 39.f4 Kg7 40.Rf1 Qc6 41.e5 Re8 42.Qa6 Nxf4 43.Rxf4 Bxe5 44.Qxc4 Qxc4 45.Nxc4 Bxf4+ 46.Kg1 Re2 47.Kf1 Bb8 48.b3 Bg3 49.Rd1 Rf2+ 50.Kg1 Rc2 51.Kf1 Rf2+
3. = (-0.05): 36.Nc3 Qxb2 37.exf5 Qxc3 38.Kh1 Qe5 39.Qa6 Qxf5 40.Rac1 Qe6 41.Qxe6 fxe6 42.Rxd3 Bb2 43.Rdd1 Bxc1 44.Rxc1 Ke7 45.Kg1 Kd6 46.Kf2 Kc5 47.Ke3 Ra8 48.Ra1 Ra6 49.Kd2 Kb4 50.Rb1+ Kc5 51.Ra1
Bronstein concludes, "Of course, it would have been somewhat more gratifying to win white's queen; but this is immaterial to the reader - he will already have spotted a dozen other interesting moves." White's three options at move 36 better than exf5 are paths to more accurate play.