The Russian-language R-Sport website quotes Anatoly Karpov:
"We should give respect where respect is due. Korchnoi was a chess phenomenon. His style was inimitable. He had an absolutely unique approach to chess. He was a workaholic and a special talent, a very top level chess player. It is very sad for chess that one of the last players from that era has left us.
I first met Korchnoi when I was ten years old. I was a little boy facing him in a simultaneous game. He was visiting the Urals and I played against him in Chelyabinsk – in fact they were short of boards so I played him two versus one with my friend. And after that Korchnoi, at the time a young and gifted player, gave us some lectures. Then we became friends for a short time, then enemies, but then we straightened things out and became friends again."
Victor Korchnoi died yesterday in Wohlen, Switzerland.