Probably some Russian version of the timeless like they use with the DGT sets. That board is so weird looking though. Looks like it has 2 ethernet lines that connect to it.
@@yaswanth8564 he won, he wanted to promote to queen but opponent resign because after promote to queen, black rook will takes queen and white rook takes black rook then dubov will up a rook, and easy game to win for dubov