Resignation Trap: A splendid game by the late Ludek Pachman.
I have a set of the original bulletins from this, the Tchigorin Memorial International Tournament of 1947. This game was played in the third round on November 28, and annotated by Vladimir Alatortsev on bulletin #3.
Somwhere around move 18, a photographer took a solo snapshot of Pachman in deep thought. This photo appeared on the cover of bulletin #5.
Here are some notes based on those of Alatortsev:
After 9. Bd3:
On 9. a3 Black replies with 9...b5
Black would be better off with 12...c5 13. dxc5 Bxc5 and ...Bb7. Black's move is an unnecessary preparation for ...c5, and it allows White to launch an attack on the King.
13. g4! Bb7
If 13...Nxg4 14. Rg1 and, after the Knight retreats, Bxh6.
17. Ne5! Qc7
If instead 17...Nf8 18. Bh6! g6 19. Bxf8 Kxf8 20. Nxf7! Kxf7 21. Qxg6+ Kf8 22. Bh5! Nxh5 23. Qg8 mate. In this line, if Black plays 18...Ne8, then 19. Bh5! etc.
20. Bxg7! c4
Trying to keep the d-file closed, in order to make an escape for his King on the Queenside.
Black should try 23...Ne5! Then if 24. Bxf6+ Qxf6 25. Qh5 Bh6. Or if 25. Qh7+ Qf7 26. Qh4+ Qf6 with a probable draw.
White threatened 25. Rg5, but this is a blunder in a critical position. 24...Ne5! is the only chance.