00:007, for instance, or on d8, and White probably has slight pressure, but it's not the end of the world.
00:08But Karpov made the most natural move, made it very quickly, and it was a big blunder.
00:14So that's why the deceptive effect of discovered check can be missed, even at the world championship level.
00:23So Karpov played rook c8 to d8.
00:26What could be more natural?
00:28Doubling the rooks, attacking the bishop.
00:30The problem is, here is the mechanism of discovered attack accompanied by check.
00:36Queen takes d7, rook takes queen, now rook e8 check, king h7, and now bishop e4 check.
00:45Check, they only move g6, and then rook takes d7, and it's a total disaster.
00:51Black lost two rooks for queen, and more material losses are inevitable.
00:58So Karpov resigned.
01:00That tells you that you have to be very, very careful watching for discovered attacks, especially if they're accompanied by check.
01:10There's another construction.
01:20It's a very famous construction.
01:21And it's a game from a Moscow international tournament in 1925 between renowned Mexican player Torre and the second world champion, Emmanuel Lasker.
01:37And it's quite amazing that Lasker, having a very good position in this game, actually, winning position at one point, he relied on the pin on the fifth rank, expecting this bishop to be lost.
01:51Because if it moves, the queen, the white queen is under attack.
