Bi-VALVE

A theme in composition in which the movement of a defending piece to block an attacker automatically clears the way for a second attacker.

I may be an old lion, but I can still bite someone’s hand off if he puts it in my mouth Wilhelm Steinitz
I don’t believe that Garry likes making decisions by democratic procedures. When there is a decision that he doesn’t like, he just turns against this organization. Georgios Makropoulos
2013
In the 70s Karpov was a darling of the Politburo or the political elite. So Kramnik is now. Just like the old days. But at least Karpov, unlike him, played in and won qualifying matches. Veselin Topalov
I was pushed out of USSR by the hands of Petrosian and Karpov. But now, after 10 years, Petrosian is not longer alive and Karpov is not longer World Champion, so it seems that everything is in place now. Viktor Kortchnoi
1986 NIC
In order to become a grandmaster class player whose understanding of chess is superior to the thousands of ordinary players, you have to develop within yourself a large number of qualities, the qualities of an artistic creator, a calculating practitioner, a cold calm competitor. Alexander Kotov

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