visayanbraindoctor: 7. g4 ?!
What is this, the five pawns attack?
Richter the attacker lives up to his reputation and pawn storms the KID right from the opening bell.
The move leads to a pawn sac for open lines and the initiative. Don't know if it's truly sound.
This game was played in Munich 1942. Kibitzers interested in 'modern' openings would find out that they were playing KIDS and open Sicilians in this tournament. (And note that recently, these sharp openings have not been often seen in present-day 'modern' top tournament opening play, which after the Kasparov era has fallen back into quieter semi-closed set-ups.) They also played Grunfelds and Catalans, and sharp Semi-Slavs.
(Another empirical data that contradicts the false notion that these pre-WW2 masters would not be able to comprehend 'modern' opening theory. If one looks at the tournament players, one can see Keres who invented the Keres attack, and Richter himself, known for the Richter-Rauzer attack. They had a good feel for open Sicilian structures even then.)
Richter is another mostly unrecognized master who surely was of GM caliber. His style was highly attacking and imaginative. His strength can also be seen in his finishing joint 3rd in this tournament after Alekhine and Keres.