Russian chess legend Garry Kasparov has an amazing ability to predict the next move of his opponent.
But even his brilliant mind couldn't have foreseen a flying penis interrupting him mid-speech.
The political activist and noted Kremlin critic was addressing opposition forces when a radio-controlled penis with testicles started buzzing around the room.
The sex toy — which was attached to a helicopter blade — hovered around for about 20 seconds before one of Kasparov's minders swatted it out of the air.
The Moscow Times reported the erotic aircraft was being controlled by "pro-Kremlin Young Russia activists".
Kasparov later saw the stunt's funny side, remarking that it was "below the belt".
It's not the first time a machine has troubled the chess champion.
He was involved in a much publicised running battle with chess program Deep Blue in the '90s.
The IBM-designed machine famously defeated Kasparov in a six-game match in 1997.
The Russian demanded a rematch, but IBM decided to retire the program while it was on top.
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