kolotok
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I corresponded with him. Grigory shared some interesting things. For example, he was already using hex editing back in 2008 when he was creating "Abelia" (there's a rather wild moment in that map). And in "A Long Way," my starting position, as it turns out, is quite far from optimal, which I suspected myself :)
Well, I'm glad you got in touch. He's definitely an author with a good sense of map design. But, as I think, his maps aren't as popular now because the difficulty level in them has become above average.