Puzzle 199541:
Puzzle 199541:
GM Alexei Shirov (2647) - GM K2 Grigoryan (2658)
I Chess in a Rook 2020 Paterna ESP (10), 2020.10.02 Shirov - Grigoryan, Paterna 2020
I Chess in a Rook 2020 Paterna ESP (10), 2020.10.02 Shirov - Grigoryan, Paterna 2020