Tigran Petrosian’s Terrific Explosions: The Power of a Rook on the Open File – ChessKid.com https://www.chesskid.com/learn/articles/tigran-petrosians-terrific-explosions-the-power-of-a-rook-on-the-open-file
Barev! That says Hello in Armenian. World Champion Tigran Petrosian was from Armenia, and was known as Iron Tigran because he was so hard to beat…
Because his rook controlled the b file, the white king was trapped!
