| Pawn and Two: Averbakh's notes to this game are very detailed and interesting. At move 25.c6? he stated, <An obvious oversight: I forgot that the pawn could be taken by the rook. Meanwhile by continuing 25.Qxe4! Qxf2+ 26.Kh1 Rxg5 27.Re2 Qf4 28.Qd5+! Kh8 29.Qxb5 White would have won a pawn.> At move 41.b3 he stated: <Here the game was adjourned, and Black sealed his next move. I returned home in a bad mood - the adjourned position looked hopeless. It appeared that after 41...Qb1+ 42.Kg2 Qf5, the d-pawn would quickly promote to a queen.> During the night Averbakh found some defensive possibilities. As he stated it, chance came to his aid. Averbakh remembered that a few months before he had been a judge in the studies section of the USSR Championship. There a study had been received by Henrich Kasparian. The original study had a flaw in it so it did not win a prize. However, a published review of the study by Botvinnik, showed that if the White bishop was removed and the White Rook was on a different square, White could obtain a draw. Here is the position where White can obtain a draw: 
click for larger view After completing his analysis Averbakh realized that now everything depended on Bondarevsky. As Averbakh relates; <The point was that Kasparian's discovery had been published - Mikhail Botvinnik had talked about it in the chess section of Ogonyok. My chances of saving the game depended largely on whether Bondarevsky had read this popular magazine!> When Averbakh made his 60th move 60.Rxh4 he stated: <Literally holding my breath, I awaited my opponent's reply. I was only one step away from the draw, but I was worried that Black might be able to prevent the rook from going to h3. As Lev Abramov later showed, this could have been done by the subtle queen manoeuve 60...Qg6+ 61.Kh2 Qf5 62.Kg3 Qe5+ 63.Kf3 Qg5 64.Rh3 (now this is too late; it is not possible to achieve Kasparian's position) 64..Kd4 65.Rg3 Qd5+ 66.Ke2 Qh1 and wins. Alas, however, Bondarevsky did not suspect any danger, and he serenely made his next move (60...Ke6)>. After 61.Rh3! Averbakh stated: <Now, finally, I could breathe easily. Black's subsequent attempts to refute the evaluation of this position as being drawn proved unsuccessful.> Note that if the Black queen can occupy h1 or f1, white cannot hold the game. At the end of the game Averbakh gave the following summary: <The reader may wonder: how was it that such a simple position was not known to theory? The reason was that such endings occur extremely rarely. Later it transpired that the honor of discovering this position did not belong to Kasparian. When in 1952 were published the analytical works of Nikolai Grigoriev, whose untimely death had occurred in 1938, in them was discovered a detailed analysis of this position, dated approximately 1917. And the person who edited this book was none other than Bondaresky!>. | 
) Qg5 64.Rh3 Kd4 65.Rg3 Qd5+ 66.Ke2 Qh1 and according to my source this is winning.
xf3 with the idea of 56. 
xf3 a3. Can White really stop all of the pawns?
