WEBVTT 00:00.900 --> 00:01.530 Hi there. 00:02.490 --> 00:07.530 In this lecture, we see an example from a very famous game, Garry Kasparov against Anatoly Karpov 00:07.530 --> 00:11.430 in the 1995 World Championship match around 11. 00:11.430 --> 00:13.980 So Karpov has just doubled his rook's. 00:14.210 --> 00:15.600 It looks very tempting quite often. 00:15.600 --> 00:19.170 Doubling Rook's is a good idea, but sometimes it isn't. 00:19.530 --> 00:24.350 So how did Kasparov tactically exploit the Rook's? 00:24.540 --> 00:30.200 It seems as though there aren't any discovery attacks here to speak of. 00:30.600 --> 00:33.270 Can we in any way set one up? 00:37.260 --> 00:38.250 So we're kind of. 00:40.210 --> 00:46.450 Able to play a very powerful forcing move in this position, which does actually set up a powerful discovery 00:46.450 --> 00:48.670 attack mechanism. 00:49.720 --> 00:51.850 OK, if I give you five cents for the video. 00:51.850 --> 00:53.200 So why it's plan, actually. 00:55.800 --> 00:57.120 Get a nice advantage. 00:57.150 --> 01:02.500 Remember, if you use the standard point scale of chess, a rook is often a five. 01:03.360 --> 01:07.310 So two rows of ten in general and rook is worth nine. 01:07.770 --> 01:14.660 So even from a material point of view, can you actually do something to increase your material advantage? 01:15.970 --> 01:17.440 OK, that's a bit of a clue. 01:19.600 --> 01:24.090 OK, so I won't play if you want to spend as long as you want five cents. 01:24.340 --> 01:26.080 OK, I'm about to unveil Queen. 01:27.220 --> 01:29.730 The queen actually took on the seven. 01:30.400 --> 01:36.630 So this force is a kind of weakness of the last move and neglect of eight, which is bounced into and 01:36.640 --> 01:38.370 now the Kings on a seven. 01:38.770 --> 01:44.820 And if you do check all checks, but look at the effects on the top position in your calculation in 01:44.830 --> 01:48.040 mind, Zain, you don't just look at the bishop of your performance. 01:48.040 --> 01:51.280 You don't look at the bishop just on CNN when it does. 01:51.670 --> 01:56.590 But you look at the effects on the entire boards and you should notice something. 01:56.590 --> 01:58.090 If you play bishop, you check. 01:58.600 --> 01:59.650 It's not just that. 01:59.650 --> 02:03.130 It's check what else has suddenly happened. 02:04.890 --> 02:08.760 Behind the scenes, so to speak, what top secret stuff has just happened there? 02:09.930 --> 02:18.930 Yeah, we've just secretly liberated Oruc on Daewon hitting the rock on these seven black has to respond 02:19.440 --> 02:20.010 to the CHAC. 02:20.010 --> 02:23.730 We've made that a one way road because they have to respond to the CHAC. 02:23.730 --> 02:24.990 It's not a two way road. 02:25.030 --> 02:27.270 They've got time to take on rock. 02:28.560 --> 02:33.810 So the game actually ended on EFO Check. 02:34.470 --> 02:38.490 Now the reason I ended Otake for this is well route takes T7. 02:39.240 --> 02:39.900 It looks as though. 02:39.900 --> 02:42.850 Hold on, it's not that much Ahadi material is it. 02:43.350 --> 02:50.390 Well actually it's going to be even more up in material here if Karpoff had played on it. 02:51.060 --> 02:52.500 We just snap of eight 02:55.320 --> 02:57.870 especially A6 here. 02:57.870 --> 02:59.960 Can you see why it plays. 02:59.970 --> 03:02.430 This is also a puzzle and a puzzle for you. 03:02.820 --> 03:03.450 Why it's playing. 03:03.450 --> 03:04.100 When here. 03:04.470 --> 03:10.590 Can you foresee another kind of weakness of the last move forcing the opponents to abandon a key critical 03:10.590 --> 03:11.110 square. 03:12.550 --> 03:13.050 Yeah. 03:13.830 --> 03:22.890 OK, Bishop, take C6 trying to get the Queen to abandon F7 and if quintet's then we have Rook takes 03:22.890 --> 03:25.170 f7 and it's checkmate chameides. 03:26.460 --> 03:29.710 So yeah it's why is winning further material here. 03:29.740 --> 03:31.020 This is a very bad situation. 03:31.020 --> 03:37.470 If Ninety-four then we can either take, we can just simply take the knights or we can even just take 03:37.470 --> 03:41.100 the bishop and it's further material to be gained. 03:41.100 --> 03:42.210 You know, better place rotates. 03:42.210 --> 03:44.310 We've got two rocks in the night against the Queen. 03:45.210 --> 03:49.410 So Karpoff felt his position was actually hopeless after Bishop before. 03:49.800 --> 03:53.340 So this discovered an attack against his rook. 03:53.970 --> 03:58.590 So when you move, even in your mind's eye, look at those discovered effects, those pieces that are 03:58.590 --> 04:01.500 being secretly kind of liberated. 04:02.070 --> 04:03.330 So it's not just your move. 04:03.330 --> 04:07.500 Your move kind of distracts the visual attention to the move actually played. 04:07.740 --> 04:08.970 But look around the board. 04:09.360 --> 04:11.730 What have you secretly liberated? 04:12.180 --> 04:19.020 We've secretly liberated the rook here hitting that rock and we've made it into a one way street because 04:19.020 --> 04:19.650 it's Czech. 04:19.650 --> 04:21.780 They have to handle the check. 04:22.260 --> 04:28.050 So I hope you get the finer points of this from the point of view of a discovery attack or discover 04:28.050 --> 04:28.680 the attack. 04:28.680 --> 04:32.310 Prospective queen takes the seven sets the scene. 04:33.210 --> 04:36.540 OK, brilliant move there as much.