Double check 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Qd3 e5 6.dxe5 Qa5+ 7.Bd2 Qxe5 8.0-0-0 Nxe4 9.Qd8+ (sacrificing a queen in order to set up a double check) Kxd8 10.Bg5++ and White mates after 10...Ke8 11.Rd8# or 10...Kc7 11.Bd8#. A double check was also seen in the celebrated Evergreen Game, Anderssen–Dufresne, 1852. Anderssen won with 20.Rxe7+! Nxe7 21.Qxd7+!! (a queen sacrifice to set up a deadly double check) Kxd7 22.Bf5++ Ke8 (or 22...Kc6 23.Bd7#) 23.Bd7+ Kf8 24.Bxe7#. In chess with variant rules or fairy pieces, other ways of delivering a double check may be possible. Triple, quadruple and even quintuple checks may
Owned-and-operated television stations in the United States 1954 to 1960). The network wanted to see if a UHF station could effectively compete against VHF stations, and attempted to make the stations more competitive by investing in significant equipment upgrades. However, WBUF consistently ranked behind its VHF competitors, WGR-TV (channel 2, now WGRZ) and WBEN-TV (channel 4, now WIVB-TV). Similarly, WNBC consistently rated behind VHF competitor WNHC-TV (channel 8, now WTNH); WNBC faced an additional problem as its signal was not strong enough to cover New Haven and western Connecticut (nearly all of Connecticut is part of the Hartford-New Haven market). By the time the FCC allocated additional