Ironman is a CORRESPONDENCE MASTER. I'm sure because is my best friend and I am too a correspondence master and I and hin, in 1994/5, wrote a chess book about Leningrad System in Dutch Defence !!!
You can find it with google : type S1 EDITRICE LENINGRAD DUTCH
SO SOMEONE CAN UNDERSTAND SOMETHING ABOUT IS COMPRENSION OF CHESS GAME.
Ciao