KEG: A nice performance by Brody after some shaky opening play, but very weak play by Mortimer.7...Nbd7
Although Schlechter condemned this move, there is nothing wrong with this placement of the Knight. Fritz thinks this is best play. Mortimer's troubles in this game came later.
8. 0-0
Schlechter claims this threatens a strong attack, but Rosenthal in the Tournament Book is surely correct in arguing that 8. h3 was best.
9...Nb6
Schlechter calls this move "A total misunderstanding of the position" and claims that the Knight should go to f8. But after 9...Nf8 Black would be in trouble after 10. Nd5. Either the text or 9...h5 were best.
10...a5
This move--not discussed by any of the commentators--is where Mortimer lost the thread of the game. He needed to follow up his King-side play with 10...h5.
11. Na4!
Very nice play by Brody and worthy of the ! assigned to it by Rosenthal. As Schlechter notes, White now is in position to attack in the center. But Mortimer was not lost yet. He needed to play 11...Nbd7.
11...NxN
As noted above, Mortimer needed to play 11...Nbd7 here.
14...BxN?
"This brings the Queen into a favorable position" (Schlechter). Mortimer may or may not have been lost before this move, but now Brody's attack is unstoppable. Mortimer needed to play 14...exd4.
16. e5!
Nice! Bordy now steamrollers his way to victory.
While 16. e5 was pretty, Marco was wrong to condemn 16. cxd4, which would also have led to a win. If 16. cxd4 Bxd4 17. Rad1 Qb6 18. Bxd6 (much better than Marco's suggested 18. e5) wins (if 18...Qxb2 19. Rb1!
19. Bc2
An inaccuracy by Rosen. 19. Bxd4 or 19. Rad1 were much better.
19...Kg7
Rosenthal says this is "forced," but in fact it is a blunder. From here the game should have been clear sailing for Rosen. Mortimer's only hope at resistance was 19...g4.
23. Bc3
Another inaccuracy by Rosen in a winning position. 23. Bd4 was much better.
23...b5?
After this mistake Mortimer was finished. Rosen's last move permitted him to get rid of the (misplaced) White Bishop on c3, and Mortimer should have jumped at the chance to play 23...Bb4. Now the game is over.
24. Qf5
Crushing!
24...Rh8
After this move, the position was as follows:
25. Re6!!
Beautiful! There is no defense. Mortimer played 25...fxR (25...Be7 was "better" but also hopeless) and then was demolished by 26. Qg6+ Kf8 27. BxN (27. dxe6 was even stronger) Qc7 28. dxe6 Qh7 29. RxB QxQ 30. BxQ
A nice finish by Rosen.