12...h5!
White hoped, after the natural 12...Nf6, to release his position with 13.f3. The move 12...h5 plays against this idea.
13.Nc3
In the case of 13.f3 h4 14.fxe4 hxg3 15.hxg3 Rh2, White is in trouble. That's the difference between playing 12...h5 and 12...Nf6. Now White has to abandon the idea of playing f2-f3.
If White tries to keep the h-file closed with 13.h4, his plan of f2-f3 will still be impossible, since the g-pawn hangs after ...Bd6.
13...Nf6 14.d3 h4 15.gxh4?! Rxh4
White hoped, after the natural 12...Nf6, to release his position with 13.f3. The move 12...h5 plays against this idea.
13.Nc3
In the case of 13.f3 h4 14.fxe4 hxg3 15.hxg3 Rh2, White is in trouble. That's the difference between playing 12...h5 and 12...Nf6. Now White has to abandon the idea of playing f2-f3.
If White tries to keep the h-file closed with 13.h4, his plan of f2-f3 will still be impossible, since the g-pawn hangs after ...Bd6.
13...Nf6 14.d3 h4 15.gxh4?! Rxh4
24.Qd1!!
White tries to eliminate his opponent's counterplay. What does Black have to do?
24...Rc4?!
This is the decisive moment of the game. Better is 24...Rb2.
25.Nxc5! dxc5?! 26.Qf3 Re7 27.Qf6 Rd4 28.Be3 Rd3 29.Rae1+/-.
White tries to eliminate his opponent's counterplay. What does Black have to do?
24...Rc4?!
This is the decisive moment of the game. Better is 24...Rb2.
25.Nxc5! dxc5?! 26.Qf3 Re7 27.Qf6 Rd4 28.Be3 Rd3 29.Rae1+/-.
Unity Chess Multiple Choice 647
public poll
C: Nb8 – 5
👍👍👍👍👍👍👍 71%
@Afshin3333, Nikhil, Vincent, @Sophia_Peng, Zhenrui
B: f6 – 2
👍👍👍 29%
@RichardPeng, @AryanLeekha
A: d×c4
▫️ 0%
👥 7 people voted so far.
public poll
C: Nb8 – 5
👍👍👍👍👍👍👍 71%
@Afshin3333, Nikhil, Vincent, @Sophia_Peng, Zhenrui
B: f6 – 2
👍👍👍 29%
@RichardPeng, @AryanLeekha
A: d×c4
▫️ 0%
👥 7 people voted so far.
Unity Chess Multiple Choice 648
public poll
C: e5 – 6
👍👍👍👍👍👍👍 67%
@Afshin3333, Nikhil, @Khalil9084, Vincent, @AryanLeekha, Zhenrui
A: Rhg8 – 3
👍👍👍👍 33%
Morteza, @Sophia_Peng, @RichardPeng
B: h5
▫️ 0%
👥 9 people voted so far.
public poll
C: e5 – 6
👍👍👍👍👍👍👍 67%
@Afshin3333, Nikhil, @Khalil9084, Vincent, @AryanLeekha, Zhenrui
A: Rhg8 – 3
👍👍👍👍 33%
Morteza, @Sophia_Peng, @RichardPeng
B: h5
▫️ 0%
👥 9 people voted so far.
Geller & Petrosian were making their debuts. Their fortunes were very different. Geller finished 3rd-4th, & was in the lead before the final round, 19th, round. 'Iron Tigran' began with 5 losses...
@UnityChess
@UnityChess