WEBVTT 00:00.940 --> 00:01.790 Hi there. 00:02.640 --> 00:07.960 In this lecture, I'm going to ask you the question, should we be taking on these five? 00:08.460 --> 00:15.930 So can you calculate to see are you actually better off if you do take on the five? 00:16.950 --> 00:26.120 So sometimes necessary calculations are looking for the number of captures, but also intuitively you 00:26.130 --> 00:27.090 can get an idea 00:29.700 --> 00:33.030 by the number of attacking pieces, number of offending pieces. 00:35.630 --> 00:43.040 So we're actually looking at these five with one. 00:45.160 --> 00:49.400 Two pieces free and in fact, four, they share that common square. 00:50.200 --> 01:01.870 We've got four attacking and if we look at the defending, one, two, three, there's only three defending. 01:01.870 --> 01:08.710 And that's that's a clue actually, that we can actually advantageously capture on these five. 01:09.510 --> 01:16.210 And if we try and visualize 1965, it's good to try and practice visualisations. 01:17.140 --> 01:18.410 See 65. 01:19.120 --> 01:20.530 Bishop 65. 01:22.820 --> 01:26.120 Bishop 65, queen 65. 01:26.480 --> 01:27.740 Queen 65. 01:28.190 --> 01:29.180 Rock 25. 01:29.210 --> 01:36.260 You see that the importance of visualization here to be able to look at the number of captures and recaptures 01:36.710 --> 01:40.370 and be more reassured that you're doing the right decision. 01:41.150 --> 01:45.470 But generally, yeah, if you count the number of tacking pieces and number of the funding pieces, 01:46.100 --> 01:48.560 you can see that you should be better off. 01:49.070 --> 01:50.990 But there's also a specific order. 01:51.230 --> 01:53.300 How do we actually want to take on the five? 01:55.690 --> 02:01.240 We genuinely want to take with the lowest value peace fast, so we don't want to take with the Kings, 02:01.240 --> 02:01.970 we lose the queen. 02:01.970 --> 02:04.780 They're not you know, they can take her. 02:05.170 --> 02:10.650 And we've just lost our queen for a night. 02:11.500 --> 02:17.950 So, you know, even if we're recapturing her, they can do something like Quincy Ain't and be better 02:17.950 --> 02:18.280 off. 02:18.910 --> 02:24.670 We usually want to use on our lowest value piece to take in such a situation. 02:26.830 --> 02:35.800 So they would take and then we could take and we can see that because we had a superiority of force, 02:37.210 --> 02:39.820 we ended up slightly better her. 02:42.040 --> 02:48.460 A pawn up a pawn is enough sometimes to win the game Pawns become queens, especially in endgame positions. 02:49.200 --> 02:56.380 So, yeah, here is an example of counting the counting method of the number of attacking pieces. 02:58.470 --> 03:02.730 And a number of the funding pieces, and you'll also notes that. 03:05.990 --> 03:10.070 When you have two pieces aligned like this, they do have these common squares. 03:10.700 --> 03:13.420 This battery, as it's called, as Queenland battery. 03:14.480 --> 03:22.340 So, OK, I hope you felt that you could take with 1965, but that's the reason you've got more pieces 03:22.340 --> 03:25.060 on D5 than the opponent is defending here. 03:25.640 --> 03:31.940 So you could also very get a very quick assessments from counting number of attacking and defending 03:31.940 --> 03:38.510 pieces, quite often in general in chess, the superiority of force, for example, the number of pieces 03:38.510 --> 03:45.050 around the king versus the number of defenders, the relative superiority of force is often a decisive 03:45.050 --> 03:45.980 factor in general. 03:46.710 --> 03:51.150 OK, so we got that 1965, you know, is a good move. 03:52.380 --> 03:54.200 OK, that's about.