WEBVTT 00:00.960 --> 00:01.830 Hi there. 00:01.950 --> 00:08.790 In this lecture, we see a battle between two world champions Mikhail Botvinnik against Vasily Mislav 00:08.790 --> 00:14.280 in the 1954 Smyslov against Botvinnik World Championship match, round 14. 00:14.280 --> 00:19.800 So D4 from Botvinnik we see nine one half six C for G six. 00:19.800 --> 00:30.930 So here I think ito King's Indian defense so both sides with encanto nicely 3d69 ten three 1987 There 00:30.930 --> 00:38.040 are some default downsides within Cato if both sides at some point lose the bishop, the resulting square 00:38.040 --> 00:41.130 weaknesses might be interesting to exploit. 00:41.280 --> 00:45.330 So the thing Cato has a responsibility associated with it. 00:45.960 --> 00:55.500 White castles e5 e4 c6 The responsibility of holding the squares, which has made room for the venkata 00:55.500 --> 00:58.530 is actually its own downside, basically. 00:58.710 --> 01:00.420 Just to clarify that a little bit more. 01:00.540 --> 01:07.440 So we see Bishop e free and now ninth G5, Bishop G five and now the sharp Queen B six. 01:07.860 --> 01:15.280 So looking at the fall and looking at B2, we see H free and now very sharp continuation. 01:15.300 --> 01:15.870 E Thanks. 01:15.870 --> 01:18.990 D four Knights 84. 01:18.990 --> 01:19.860 Queen 86. 01:19.860 --> 01:28.650 Black is investing a knight here temporarily, but after B5 this is a really interesting move to get 01:28.650 --> 01:35.280 the knight back, but also invite possibilities of this bishop being used on the diagonal. 01:35.940 --> 01:47.040 In effect, Knight takes the fall, so the pieces got back, but it invites a tactic here, which is 01:47.040 --> 01:50.490 interesting, but not entirely clear, as you might think. 01:50.610 --> 01:52.110 So Knight takes C six. 01:52.110 --> 01:55.590 It looks like a standard tactic here to win the exchange. 01:55.590 --> 02:02.640 So E5 winning the exchange we have queenside C4 02:05.130 --> 02:07.620 bishop things ain't so. 02:07.620 --> 02:11.130 Why right now is the exchange up to rooks? 02:11.130 --> 02:15.390 Two bishops against a rook and three minor pieces. 02:15.390 --> 02:18.210 However, Knight takes E5. 02:18.450 --> 02:27.930 Black has a dangerous looking position and there's team called Nation on G4 White Place Now Rook c1y 02:27.930 --> 02:36.630 could have played Bishop G4 and on Bishop takes Bishop G2 on Bishop takes G4 this position Knights have 02:36.630 --> 02:37.260 free check. 02:37.260 --> 02:43.560 It is scary and also it's kind of -- the king and bishop if this position occurs. 02:43.770 --> 02:46.500 It has resources though it's not the end of the world. 02:46.500 --> 02:50.940 Queen f4 So any Queen H three the Queen takes F3. 02:50.940 --> 02:59.160 So here this position ends up inequality because Black has enough compensation here to hold this at 02:59.160 --> 02:59.730 sames. 03:00.090 --> 03:04.170 So that's an interesting continuation, but it could result in equality. 03:04.170 --> 03:14.010 We have Rook C1 Queen before a frame trying to nudge the queen away from A4. 03:14.010 --> 03:15.780 Her queen takes B2. 03:15.780 --> 03:17.190 Queen takes A4. 03:19.060 --> 03:25.690 Now here Spins of Play, the move to challenge the whole diagonal with Bishop b7. 03:26.920 --> 03:32.080 But isn't there a slight issue here with this move? 03:32.110 --> 03:33.640 Bishop B7. 03:35.190 --> 03:41.370 But remember, the responsibility of the fingers of the bishop has indulged itself in activities and 03:41.370 --> 03:46.230 may be lost, resulting in these LightSquared weaknesses being amplified. 03:46.540 --> 03:48.510 White plays what seems to be a tempting move. 03:48.510 --> 03:54.340 Rook b one If Bishop takes B seven instead, Queen takes B seven. 03:54.360 --> 03:57.600 It looks scary still because of a free check. 03:58.860 --> 04:05.850 In this position, one is afraid Y does have a resource rook c free and a knight a free check just to 04:06.150 --> 04:10.170 give the rook up or the bishop could be munched with checked potentially. 04:10.560 --> 04:21.120 And this position should actually be a small edge for y actually, but rook p one was played. 04:21.750 --> 04:25.770 So guess what happens here? 04:26.430 --> 04:27.240 Well. 04:30.940 --> 04:32.020 The thing is. 04:33.950 --> 04:35.330 Of the rugby one. 04:35.810 --> 04:36.380 It looks as though. 04:36.410 --> 04:37.430 Is this a blunder or something? 04:37.460 --> 04:37.830 There's nothing. 04:37.910 --> 04:38.820 A free cheque. 04:38.840 --> 04:41.000 King H one the skewer. 04:41.390 --> 04:42.590 There's no cheque. 04:42.620 --> 04:45.260 So what do we do about the skewer? 04:45.410 --> 04:46.070 Guess what? 04:46.080 --> 04:48.560 That's the dismissal of played in this position. 04:48.740 --> 04:51.230 And why is it strong? 04:51.230 --> 04:54.860 From what we know about attacking chess and we can king positions. 04:55.370 --> 05:01.160 We should have an intuition built up why this might be strong, this next move. 05:04.950 --> 05:06.300 So intuitively. 05:06.300 --> 05:07.920 Yeah, we have to play. 05:08.670 --> 05:09.450 We have to play. 05:09.450 --> 05:10.680 Bishop takes eight. 05:10.710 --> 05:13.440 If Queen two, Bishop takes be seven. 05:13.470 --> 05:14.340 Thanks very much. 05:14.460 --> 05:20.040 So we have to play this queen, sacrifice, position or queen sacrifice and what we know about it. 05:20.040 --> 05:21.780 The reasons why. 05:21.810 --> 05:23.640 Well, first of all, let's get to this position. 05:23.640 --> 05:25.560 Knight takes five check. 05:27.540 --> 05:29.210 And here King used to. 05:29.220 --> 05:34.090 If every bishop takes me to this position is nice for black. 05:34.110 --> 05:37.110 Chipping away at every so king needs to. 05:41.230 --> 05:43.330 A free check King X-ray. 05:43.330 --> 05:44.550 Now Bishop takes P2. 05:44.560 --> 05:45.910 So let's take stock here. 05:46.270 --> 05:48.250 The squares have been weakened. 05:48.460 --> 05:52.840 The think itOs gone black has got free pieces for the Queen. 05:52.840 --> 05:59.380 And traditionally, we might say, well, the bishops are worth a little bit more than free on some 05:59.380 --> 06:03.010 scales and the knight about free. 06:03.010 --> 06:07.750 But overall, do they balance the queen, which is ten on pawns? 06:07.750 --> 06:15.580 Black is a pawn up, but the weakened king, let's think about the weakened king in general kind of 06:15.580 --> 06:18.550 has the effect of promoting pieces. 06:19.120 --> 06:27.820 Pieces get higher value for a weakened king, but also sometimes with a weakened king, you really need 06:27.820 --> 06:30.760 absolute maximum teamwork. 06:30.760 --> 06:34.720 You need all the pieces working together to justify. 06:36.100 --> 06:36.820 Things. 06:36.820 --> 06:40.150 And in this case, we need to get this rock into the tent. 06:40.150 --> 06:45.310 And there are possibilities concretely of getting the rock into the attack as well. 06:45.310 --> 06:52.310 Once we have the full team on board, then this really starts to justify itself. 06:52.330 --> 06:58.690 So that upward trend of position for a position or sacrifice in general, we're looking for the upward 06:58.900 --> 06:59.740 trends. 07:00.130 --> 07:02.680 The upward trend is created by teamwork. 07:03.810 --> 07:05.400 And we're about to witness that here. 07:05.400 --> 07:07.680 So bear witness to teamwork now. 07:07.710 --> 07:09.570 So a pawn is taken. 07:10.110 --> 07:11.940 So it's equal on pawns. 07:12.510 --> 07:15.570 Bishop E4 is played a fool. 07:16.350 --> 07:18.690 And now what is the teamwork move? 07:19.640 --> 07:20.480 So that's one thing. 07:20.490 --> 07:24.680 The pieces have gone up in value, but the importance of teamwork has also gone up. 07:25.340 --> 07:29.970 It must be a complete teamwork here in this particular position especially. 07:29.990 --> 07:32.750 So what is the great move to play here? 07:33.140 --> 07:38.120 Because we're controlling escape squares in effect through x ray, some escape squares. 07:38.510 --> 07:44.330 In fact, you know, the knight is actually controlling both H four and H two. 07:44.360 --> 07:47.040 The bishop is X-raying escape squares. 07:47.060 --> 07:52.340 So we really need all the members of the team because these are in the covering squares role. 07:52.760 --> 07:56.330 We need our full orchestra, team, orchestra. 07:56.330 --> 08:03.440 So King G seven and the French now include Rook, H, eight and H five both the idea of activating the 08:03.440 --> 08:05.750 rook to try and get a mate secured. 08:05.780 --> 08:07.370 A checkmate pattern's cured. 08:07.520 --> 08:10.400 We have rook d one and now Bishop H. 08:10.430 --> 08:11.960 Bishop e5 is played. 08:12.350 --> 08:16.820 If we could play h5 here, this would be working. 08:17.990 --> 08:23.120 So you might wonder why we'll say g tanks here. 08:23.690 --> 08:26.600 This is very dangerous for white. 08:27.740 --> 08:29.630 Very, very dangerous position indeed. 08:30.050 --> 08:38.690 If Rook takes these six as example, Rook takes h five king g4 And now if we take away the F4 escape 08:38.690 --> 08:42.950 square, we make h two more importance. 08:42.950 --> 08:48.430 And to mate Fran White would have to give up the rook to just delay things. 08:48.440 --> 08:50.330 And this position is hopeless. 08:50.960 --> 08:55.940 So that shows how the team comes together after the position of sacrifice. 08:56.150 --> 08:57.860 It's based on the weakened king. 08:58.100 --> 09:05.450 We can King's increase the value of our pieces generally and also force us to consider maximum teamwork 09:05.450 --> 09:10.400 because our pieces might be controlling key escapes, whereas we need another ingredients getting the 09:10.400 --> 09:11.480 full team together. 09:11.960 --> 09:15.290 So here in the game. 09:18.950 --> 09:20.690 Okay, So King G. 09:20.690 --> 09:22.340 Seven, though, was played. 09:23.620 --> 09:24.960 Which is also strong. 09:24.970 --> 09:26.830 It's not wasted the position. 09:28.690 --> 09:33.310 So we have Rook D1, Bishop E5. 09:34.090 --> 09:38.320 So these pieces are formidable, centralized, stable. 09:38.770 --> 09:41.260 We have Queen E seven. 09:42.640 --> 09:51.850 If King G2 Black could consider actually an alternate route to the King here with Rook eight trying 09:51.850 --> 09:57.820 to get in a two and a four and a to this position, trying to get in through B2. 09:57.820 --> 10:01.180 It's still teamwork with the rook adding to the team. 10:01.420 --> 10:04.960 So say Queen A7, we still have teamwork being demonstrated here. 10:05.710 --> 10:13.240 Queen Ephraim D5 supporting the Bishop and Black is now threatening because of that extra rook. 10:13.260 --> 10:18.400 Black is threatening Bishop the E4 with the killer Common Square F2. 10:19.130 --> 10:20.480 And this is very difficult. 10:20.480 --> 10:26.840 You know, here, rookie one bishop, before the team comes together, like the A-Team team comes together 10:28.310 --> 10:29.280 with a plan. 10:29.300 --> 10:30.080 Okay. 10:31.130 --> 10:32.830 A-Team was a TV series. 10:32.840 --> 10:33.370 Okay. 10:34.310 --> 10:39.080 Anyway, so Queen is seven. 10:39.080 --> 10:42.740 We have Rook eight. 10:45.750 --> 10:47.910 Being played, actually. 10:47.910 --> 10:49.710 So the King's still on night train. 10:50.980 --> 10:54.820 So Russia has been a switch used now. 10:55.710 --> 11:02.520 So that's interesting trying to just get to see, too, because F2 is kind of vulnerable here, basically 11:02.520 --> 11:04.740 in this situation with the Kingston Tree. 11:04.740 --> 11:06.840 You know, this this kind of thing is lucrative. 11:07.080 --> 11:17.610 We have a five Roxi two King, G2, 94 check King AV one And now Bishop and Frey, look at this teamwork 11:17.610 --> 11:26.630 here, Rook B one And now, after 96, Pope resigns, look at all of Black's pieces. 11:26.640 --> 11:29.160 They're absolutely amazing how they work together. 11:29.400 --> 11:32.520 But let's look concretely what is happening. 11:32.520 --> 11:34.290 Saint Queen G5. 11:34.380 --> 11:36.120 We can take time out to play. 11:36.120 --> 11:46.500 Knight takes a five hair, actually, and in this position leave the rook around looking at F2 and now 11:46.500 --> 11:47.340 knight be free. 11:47.340 --> 11:51.420 We get this one this knight back towards the center towards the king. 11:51.990 --> 11:57.390 So now we would build up menacing France after Bishop D5 to vacate F3 for the Knights. 11:57.690 --> 12:02.880 So the team is at full becoming at full pressure against White's king. 12:02.880 --> 12:07.710 So Queensferry Knight free check Bishop Deform. 12:07.710 --> 12:10.260 We see the Corp on F2 here. 12:11.010 --> 12:18.930 So yes so that sequence in the end that fictional sequence shows actually with accurate play how we 12:18.930 --> 12:20.680 can have all our pieces relatively active. 12:20.700 --> 12:24.750 But we want the knight in particular to be in the right area. 12:24.780 --> 12:28.050 The Bishop the bishops were kind of more easy to centralize. 12:28.050 --> 12:32.940 The knight needs to sometimes do something and then come back in this case. 12:33.150 --> 12:39.870 So an interesting game here, 96 wasn't played out, but you can see that the writing is on the wall 12:39.870 --> 12:41.820 here, that the knight. 12:42.980 --> 12:45.980 It takes time to come out, but it has to come in again. 12:46.910 --> 12:47.240 Yeah. 12:47.240 --> 12:52.880 So there's teamwork, but there's also optimizing the teamwork as well as optimizing the teamwork. 12:53.300 --> 13:01.430 So this position, by the way, if hair root E5 won't be the greatest move you can play in this position. 13:05.710 --> 13:05.940 Okay. 13:06.070 --> 13:08.650 We have potential killer common squares. 13:08.860 --> 13:09.940 That's a clue. 13:10.630 --> 13:12.250 And there's a weakness of the last move. 13:12.250 --> 13:13.850 It's just the part of the back row. 13:13.870 --> 13:16.510 We can actually play in this position. 13:16.520 --> 13:18.670 Rook b one check, and that's mating. 13:18.970 --> 13:21.700 So, King H to rook, H1 is checkmate. 13:22.150 --> 13:24.670 So that's why that's not particularly clever. 13:25.000 --> 13:26.350 This just delays. 13:27.040 --> 13:36.370 So that's why it was mentioned that actually in this position, Rook C one and then following through, 13:36.370 --> 13:41.110 then moving the bishop to vacate F3 is a killer combination. 13:44.010 --> 13:48.030 So yeah, this would be crushing fruit with a big advantage. 13:50.770 --> 13:53.830 So I hope you enjoyed this And consider the position of Queen. 13:53.830 --> 13:56.200 Sacrifice isn't something just for the Masters. 13:56.470 --> 14:02.290 Quite often we are in a position to consider the position of Queen sacrifices, but we need to have 14:02.290 --> 14:09.900 an almost an act of faith that with any position of sacrifice, well, will we be going up in strength 14:09.910 --> 14:13.840 for routine work, for improving pieces, for coordinating pieces? 14:13.870 --> 14:18.760 We've got to factor these things almost intuitively, sometimes based on experience. 14:19.360 --> 14:23.410 So the classic positional kind of sacrifice is the exchange sacrifice. 14:23.410 --> 14:28.900 But here, you know, a queen's sacrifice, how powerful it is, is being wonderfully demonstrated by 14:28.900 --> 14:31.480 this game and so much.