With a price tag only one-third that of the F-35 but boasting a Mach 2.1 speed and a massive weapons bay, the Su-75 Checkmate is becoming a new nightmare for Western rivals, redefining the game.

As the head of the state tech corporation Rostec said, the Checkmate will become "a truly workhorse solution" for those countries that cannot purchase the US F-35 Lightning II fighter for $120 million ...