WEBVTT 00:01.510 --> 00:02.410 Hi there. 00:02.860 --> 00:07.290 In this lecture, I want to talk about the power of complementary resources and attacking chess. 00:07.300 --> 00:10.810 So in the real world, we often eat with a knife and fork. 00:10.840 --> 00:12.180 They're complementary. 00:12.190 --> 00:18.340 So you can do the carving with the knife and picking up things with the fork, and you could just have 00:18.340 --> 00:18.760 a spoon. 00:18.760 --> 00:21.580 That's also complementary if you're having a dessert. 00:21.610 --> 00:25.550 So they have different roles and responsibilities and they complement each other. 00:25.570 --> 00:33.370 They're a great team of instruments to our food, and eating is very important generally to mammals 00:33.370 --> 00:35.290 like us, human beings. 00:35.380 --> 00:43.240 So when resources work in a team, if we abstract from that, we like to have other resources working 00:43.240 --> 00:45.640 in a team effectively. 00:45.640 --> 00:49.610 So they often have non duplicate roles and responsibilities. 00:49.630 --> 00:52.360 So another example, YouTube channels. 00:52.360 --> 00:54.550 Everyone's having a YouTube channel nowadays. 00:54.850 --> 01:01.180 I was one of the early big YouTube channels for chess, but in general it's becoming more and more professional 01:01.180 --> 01:09.520 and the bigger channels actually get sometimes teams of thumbnail artists so they can work on the video 01:09.520 --> 01:11.260 and they might have an editor as well. 01:11.260 --> 01:14.190 And you have different roles and responsibilities. 01:14.200 --> 01:21.670 So in chess we do naturally at the start of a game, have two different bishops on on two different 01:21.670 --> 01:22.360 cultures. 01:22.720 --> 01:28.120 So in this position, which I'm going to talk about soon, we do have a natural complementary to start 01:28.150 --> 01:28.780 off with. 01:28.810 --> 01:36.790 You know, the bishops are on different cultures and you know, sometimes in terms of mating, they 01:36.790 --> 01:43.240 can work together to make one can take escape squares of the opponent's king and one can checkmate the 01:43.240 --> 01:43.570 knights. 01:43.570 --> 01:46.810 Also, you know, there's no knights on this position for white. 01:46.810 --> 01:52.600 But knights can also take different responsibilities, even though they are the same. 01:52.600 --> 01:53.710 We have two knights. 01:53.710 --> 01:56.170 They can take different responsibilities as well. 01:57.640 --> 02:02.920 But also, you know, in chess we can amplify exactly the same resources like Rooks, we can double 02:02.920 --> 02:04.270 them or bishop and queen. 02:04.270 --> 02:09.070 We can create batteries for our duplicate kind of line pieces quite often, and that's effective as 02:09.070 --> 02:09.520 well. 02:09.550 --> 02:14.200 So sometimes you're just amplifying the same role. 02:14.200 --> 02:19.030 And that's that's not to disregard that aspect. 02:19.180 --> 02:27.520 But anyway, another example in chess pieces in harmony with pawns, so at least not interfering with 02:27.520 --> 02:29.710 each other's roles and responsibilities. 02:29.710 --> 02:34.720 You don't really want locked in bishops for the whole game because your pawns are locking in the bishops. 02:34.720 --> 02:41.050 So we're looking out for complementary resources quite often in real life and on the chessboard and 02:41.050 --> 02:42.490 mating patterns. 02:42.730 --> 02:50.860 Basically, if you see my checkmate course, you know, mating patterns often have free, golden different 02:50.860 --> 02:52.120 roles and responsibilities. 02:52.120 --> 02:57.070 You have pieces or pawns or the opponent's pieces are pawns taking away escape squares. 02:57.400 --> 03:02.650 Sometimes you have a supporting role where an attacking piece is supported, so it's not munched, eaten 03:02.650 --> 03:03.880 by the opponent's king. 03:03.880 --> 03:08.530 And then you have the classic piece or pawn, which does the checkmate. 03:08.620 --> 03:15.190 So in a mating pattern, you have sometimes a team of pieces and pawns working together. 03:15.190 --> 03:19.210 So the idea of complementary resources, it's a super powerful one. 03:19.240 --> 03:23.260 It's an obvious one kind of we take for granted in the real world. 03:24.040 --> 03:29.380 And yet in other example, you know, a knight on F5 is often, you know, it's one of Kasparov's favorite 03:29.380 --> 03:35.650 pieces and aggressive knight placement and five Kasparov loves the Knight and F5 or Knight on F4. 03:35.650 --> 03:41.170 It's very, very dangerous for the attacking player, helping quite often. 03:42.560 --> 03:46.340 Couldn't control Escape squares help the queen Checkmate sometimes. 03:46.700 --> 03:51.710 So yes, the idea of complementary resources, it's really interesting. 03:52.010 --> 03:57.950 So here is an example for my good friend Constance Carey on this, which you will see in detail later 03:57.950 --> 04:00.770 in the course in the Bishop Pear section. 04:01.250 --> 04:05.930 There's two beautiful bishops, so a real natural complementary example. 04:06.440 --> 04:09.230 And Costas here plays a very strong move. 04:09.260 --> 04:11.630 Guess what it is for ten points. 04:14.120 --> 04:14.780 Okay. 04:16.550 --> 04:16.820 So. 04:16.820 --> 04:21.350 Bishop de five So you could say in this position, well, this bishop is doing a really good job in 04:21.350 --> 04:23.820 controlling the dark squares, which really makes this more effective. 04:23.840 --> 04:25.340 There's no Queen F six, right? 04:25.430 --> 04:30.740 So by maintaining the bishop pair, they're already working really well together, putting the queen 04:30.740 --> 04:33.530 into a really unfortunate square now. 04:33.620 --> 04:40.460 So the queen goes to D seven, which interferes with the bishop looking at looking after E six. 04:41.570 --> 04:45.200 But you know, what could black have done if rook takes E two? 04:45.230 --> 04:49.520 We're going to take the queen and other bishop is also holding a one. 04:49.520 --> 04:51.290 So this is a winning position anyway. 04:52.340 --> 04:52.760 So. 04:52.760 --> 04:56.510 Okay, so we have Queen D seven. 04:58.610 --> 05:02.630 And now can you see the beautiful move which causes black to resign? 05:03.200 --> 05:07.820 If I give you 5 seconds, pause video here won't play and black resigns. 05:09.990 --> 05:10.560 Okay. 05:10.830 --> 05:12.660 It's rookie six. 05:12.660 --> 05:12.990 Yes. 05:12.990 --> 05:15.990 That kind of weakness of the last move that the bishop is being interfered with. 05:15.990 --> 05:21.240 And there's a huge rook takes h six check that bishop is actually in a pinning role. 05:21.240 --> 05:23.730 Pinning that pawn the power of the piece. 05:23.910 --> 05:28.410 The pin piece of pawn is illusion rates and the illusion that it's supporting h6. 05:28.530 --> 05:29.670 So Black resigned. 05:29.670 --> 05:32.730 If rook takes, then rook takes. 05:35.190 --> 05:36.210 So that's good. 05:36.480 --> 05:40.800 The two works, although they're completely duplicate they they reinforce, they amplify this rook E6 05:40.800 --> 05:41.610 resource. 05:42.090 --> 05:47.200 So now black can't really do too much about this in an effective manner. 05:47.220 --> 05:49.020 Black and try rook have sex. 05:49.260 --> 05:50.350 But we just play. 05:50.370 --> 05:53.730 Bishop takes f6, Knight takes f6. 05:53.730 --> 05:59.730 And here the Queen can also sometimes act in a complementary role to another bishop. 06:00.820 --> 06:03.040 And how can we get that commitment going here? 06:03.070 --> 06:03.910 What would you play here for? 06:03.910 --> 06:04.750 Ten points. 06:09.800 --> 06:10.160 Yeah. 06:10.190 --> 06:15.080 Rook takes f6 destroys Black's king G takes queenside h6 Jack. 06:16.200 --> 06:20.730 So the queen is acting in a way like a dance membership as well as other things. 06:21.060 --> 06:23.420 But here now, Queen, have a check. 06:23.430 --> 06:28.710 And then we have the bishop in a support role supporting the queen for queen. 06:28.740 --> 06:30.120 Thanks, Jack, mate. 06:30.450 --> 06:32.520 So complimentary are everywhere. 06:32.550 --> 06:35.370 Look out for them in in these attacking games. 06:36.000 --> 06:40.410 There are really powerful concepts in the real world which are very logical and very beautiful. 06:40.740 --> 06:48.450 And I thought this is interesting because when we look at the original Steinitz in elements of positions, 06:48.450 --> 06:49.470 the bishop comes up. 06:49.470 --> 06:51.330 But it's good to ask why. 06:51.360 --> 06:53.520 Why is the bishop pairs so good? 06:53.910 --> 06:58.620 It's good to have some example games and it's good to fundamentally say, well, actually the bishop 06:58.620 --> 07:01.590 here is also an example of complementary resources. 07:01.590 --> 07:04.980 What other complementary resources are there in chess? 07:05.580 --> 07:11.130 So there are many, you know, constructing mating that requires different roles and responsibilities 07:11.370 --> 07:12.390 of pieces. 07:12.660 --> 07:14.190 So you get the general idea. 07:14.220 --> 07:19.550 Looking out for complementary resources is really a great idea. 07:19.560 --> 07:22.650 It's like a team of yours on the chessboard. 07:22.680 --> 07:28.980 Your resource is working as a team in non duplicate roles, but the useful exception, you know, when 07:28.980 --> 07:33.060 we have our line pieces lined up, it's usually to amplify them. 07:33.060 --> 07:33.460 So. 07:33.480 --> 07:38.280 Okay, so there are exceptions is not everything is covered by the complementary concepts, but it's 07:38.280 --> 07:40.440 something to look out for in my view. 07:40.930 --> 07:43.110 Okay, so much.