This is not a full enough explanation. There is more to it than this.
He had a very specific, and I think interesting, situation around his blind chess “big show” playing. By big show, I mean the 1 vs 45 style play, which is really amazing.
Perhaps I should have asked “why did he put on performances like that and what made him stop so suddenly and permanently?”
Note: this is a true story(don’t google it!) and I also am not the author of the puzzle. I typed it out word for word, but I do see value in making the question clearer.
Sorry for being off-topic, but I’m having trouble grokking how that’s even possible, outside of maybe a handful of genius savants. Are the strategies different? Are they recognizable chess games that would seem normal played the regular way?
1: Was the war in question World War II?
2: Was anyone relevant Jewish?
3: Was Michael Jewish?
4: Was the person who died Jewish?
(and just in case)
5: Was the war WWI?
6: Was the war the Korean War?
7: Was the war the Vietnam War?
8: Was the war the First Iraq War?
9: Was the war one the US was not involved in?
Was the person who died a casualty of war?
Was the person imprisoned?
If so, was it a concentration camp?
Was Michael related to or married to that person?
I have heard* that the Nazis declared chess to be exclusively for Aryans, and banned Jews from playing. Was this the reason? Was it connected to the reason?
On the TV show Foyles War. This is fiction, and thus not a reliable cite, but it has the reputation of being well researched and historically accurate.