# Spassy won against Averkin. How did he do it?

• 2 years ago · Quote · #1

Hope I got my diagram correctly.

• 2 years ago · Quote · #2

Let's make it happen!

• 2 years ago · Quote · #3
sisu wrote:

Ah Spassky always the attacker . I would have done 1.b4 with idea 1...Da6 2.b5 Da5 3.Tf4 idea Ta4.

So 1.b4 Da6 2.b5 Db7 is forced, and White queen swaps to a winning ending.

After 2.b5 is there something wrong with 2....Qa6.

• 2 years ago · Quote · #4

Let's make it happen!

• 2 years ago · Quote · #5

@sisu: I tried 1.b4 idea first, too. Seems to force black to trade the queens after 1.b4 Qa6 2.b5 Qb7 because 2...Qa5 3.Rf4 looses even worse - black has no defence against Ra4 without further material losses

My second try was 1.Qc8 with the idea 1...Kf8 2.Rxf7+ Kxf7 3.Rf1 which simply transposes to the line played by Spassky after 3...Kg7

Of course 1.Rxf7+ is more brilliant but I would rather choose 1.b4 if I played this position at white side. This forcingly leads to a won endgame because of white's passers at queenside and material advantage.

It is interesting to see what chess engines "think" of this position. Stockfish, houdini and rybka all choose 1.Rxf7+ but then a pecular thing occurs. I input 1.b4 and after a longer thought (depth near 30) evaluate that position better than 1.Rxf7+

Thus, I am not that worried for not solving the puzzle at first take because what I wanted to play might be actually even a stronger move, though of course not so spectacular as the brilliant combination converting exchange up into piece up

• 2 years ago · Quote · #6

Let's make it happen!

• 2 years ago · Quote · #7
sisu wrote: Read carefully . If 2...Da6 then 3.bxa6

The move sequence is 1.b4 Da6 2.b5 Da5. Therefore, the move 3.bxa6 does not exist.

• 2 years ago · Quote · #8

Let's make it happen!

• 2 years ago · Quote · #9

Black's first move was already 1....Qa6.

So it is impossible for Black to be playing 2...Qa6 again.

So the thing that is wrong with 2...Qa6 is that 2...Qa6 is an illegal move not because of 3.bxa6.

For on White's 3rd move Black's Q can not be at a6 anymore.

Hope that clarifies everything.

• 2 years ago · Quote · #10

Let's make it happen!