WEBVTT 00:01.050 --> 00:01.890 Hi there. 00:01.920 --> 00:04.980 In this lecture, we see Anatoly Karpov against Geller Sacks. 00:05.010 --> 00:09.120 This is a 1983, the non last tournament, round three. 00:09.480 --> 00:11.590 We see Eiffel from comp off. 00:11.610 --> 00:13.820 We have a Sicilian defense from Sax. 00:14.010 --> 00:22.440 Note 3e6d4c text four note takes 349569 ac three and now D six. 00:22.440 --> 00:29.310 So this is going into the and Ingram variation, but it does allow a potentially really strong Karras 00:29.310 --> 00:31.100 attack named after Paul Karras. 00:31.110 --> 00:39.060 But what can blank do here instead of d6a6 point has e five that forcing move would compromise black 00:39.060 --> 00:39.920 structure. 00:39.930 --> 00:43.650 So this position is very comfortable for whites with advantage. 00:44.520 --> 00:51.720 However, 9c6 can be used to transpose into, for example, a Sicilian Resnikoff, which is an interesting 00:51.720 --> 00:55.950 variation and respectable variation for black and play might continue. 00:55.950 --> 01:01.260 Bishop E seven white taking on f6 C free, which helps reroute the knight sometimes. 01:01.260 --> 01:07.440 So the knight later goes to C two, E free, generally speaking, and a four is a break later. 01:08.250 --> 01:16.530 But DE six was played here and we have caras attack territory H six so this is a nice move to put the 01:16.530 --> 01:17.010 brakes on. 01:17.010 --> 01:25.560 G five if 90 6g5 we get a nice position for white, it's quite dangerous for black this ready made attack 01:25.560 --> 01:27.510 that white has on the king side. 01:27.510 --> 01:37.860 So this possession for example is in White's favor basically but so so D six is played and we have. 01:41.660 --> 01:42.770 Of the G4. 01:42.800 --> 01:43.190 Sorry. 01:43.190 --> 01:48.170 After G4, let's get back the game six was puts the brakes on G5 from white. 01:48.530 --> 01:49.970 So slightly different now. 01:49.970 --> 01:57.620 Rook G one is played Bishop e seven Bishop e Fritz are not committing yet G 519 C six Queen E two. 01:57.920 --> 02:03.290 Bishop d7h4 So black they're not Castle kingside. 02:03.290 --> 02:04.910 We have 964. 02:04.910 --> 02:15.680 Bishop takes the E4 e5 Bishop drops back to E free Bishop C sex Queen D free holding the E4 pawn Queen 02:15.680 --> 02:21.740 A five White Castle is queenside and now black does something quite speculative. 02:21.740 --> 02:27.410 Knight takes E for temporary p sac comp off actually obliges head knight takes e four. 02:27.410 --> 02:31.820 So risk factor is that a two could be taken at some point. 02:31.970 --> 02:36.650 But there's also this mobile sensor so D five so it's a speculative P sac. 02:37.100 --> 02:44.600 And to avoid controversies, Karpov plays a very interesting move here, just going for a small, definite 02:44.600 --> 02:45.710 advantage. 02:46.490 --> 02:47.810 He plays Queen Bee free. 02:47.810 --> 02:51.800 So this is kind of iconic cop off style. 02:51.800 --> 02:53.990 He detects that this position just give back. 02:53.990 --> 03:02.420 The piece is a way of cutting through all the complexities and controversies and potential for analysis, 03:02.420 --> 03:05.000 mistakes and analysis holes. 03:05.000 --> 03:12.680 So Queen Bee Free is an iconic kind of positional move, not minding smaller but more definite advantage 03:12.680 --> 03:14.900 just to keep control of the position. 03:15.410 --> 03:19.160 Just to show the complexity reduction here. 03:19.910 --> 03:28.370 If Knight see free black actually can gain equality with D4, it seems so say g5d take C phrase. 03:28.370 --> 03:37.130 So now A2 is really hanging, G takes H six and if black plays their cards right here, they should 03:37.130 --> 03:39.590 play G tanks, same sex. 03:41.410 --> 03:43.000 If they play Queen St's a two. 03:43.000 --> 03:48.730 In fact, Queen takes three ends up being funny enough, better for white, the rookies attacking the 03:48.730 --> 03:49.420 queen. 03:49.840 --> 03:53.500 And here this is going to be better for white disposition. 03:54.070 --> 04:01.350 But if black plays G takes H six hair, then the concept is very good for black. 04:01.360 --> 04:10.390 The temporary p sac this position, let's say Queen E to hare well to protect the rook is needed C takes. 04:10.390 --> 04:14.950 Yeah, it's going to be even Black's really done well here. 04:15.100 --> 04:18.580 So 9c3 wouldn't be good night G phrase actually. 04:18.580 --> 04:19.660 Okay. 04:19.660 --> 04:23.130 For White's default, Bishop G two would be the key move. 04:23.140 --> 04:28.570 So again, an element of giving a piece back to make sure that there is an advantage for white. 04:28.570 --> 04:36.190 So here there's an advantage for white knight D two is another interesting move D four might be free 04:36.190 --> 04:38.980 Queen takes a two queen F five. 04:38.980 --> 04:45.100 So willingness to give back the piece again is expressed here of the G five. 04:45.280 --> 04:49.090 So there's free moves to one of them. 04:49.090 --> 04:54.460 Actually black with best player gets equality but calf move is very good queen bee free. 04:54.790 --> 04:59.110 So we see a willingness immediately to give the piece back for this position. 04:59.110 --> 05:07.290 And there's a sense of authority, a qualified of authority, a qualified control of the position. 05:07.300 --> 05:11.800 In particular, Karpov is interested to gain control of the light squares here. 05:11.800 --> 05:13.210 Bishop C4. 05:13.630 --> 05:15.070 But there's a counterpart. 05:15.070 --> 05:15.970 Bishop Right. 05:15.970 --> 05:20.380 He wants domination control authority on the light squares. 05:20.770 --> 05:29.290 So we have rook f eight addressing the concrete threat of bishop takes f seven if black castled g five 05:29.290 --> 05:30.910 and if h5g6. 05:30.910 --> 05:34.000 So that will be very painful on the light squares. 05:34.000 --> 05:36.280 So a king h g takes F seven. 05:37.450 --> 05:45.130 So okay, we have rook f eight and now there's a key move to really get authority on position. 05:45.130 --> 05:49.660 The king's in the center, which helps matters significantly, the king being the center. 05:49.900 --> 05:52.450 So what would you play here for 200 points? 05:52.690 --> 05:54.370 How would you improve the position? 05:55.300 --> 05:58.210 In fact, I'll give you two alternatives for 200 points. 05:59.400 --> 05:59.600 Okay. 06:00.190 --> 06:03.670 The simple alternative would be g five here. 06:03.940 --> 06:05.710 So H takes, H takes. 06:05.710 --> 06:08.050 This is dangerous for black. 06:08.960 --> 06:15.700 Just Bishop D five plain vanilla G six does also get a kind of authority on on the light squares and 06:15.700 --> 06:16.420 splits. 06:16.420 --> 06:23.650 Blacks pull structure a bit white has significant advantage here even though technically black is a 06:23.650 --> 06:24.070 pawn up. 06:24.070 --> 06:25.360 These are kind of bad pawns. 06:25.360 --> 06:29.980 White's pieces are just great here, but copper plays the alternative Rook D five. 06:29.980 --> 06:32.200 This is a positional exchange sacrifice. 06:32.590 --> 06:33.640 So this is fun. 06:33.640 --> 06:35.800 Bishop takes D five, Bishop takes D five. 06:35.830 --> 06:41.650 It's a qualified authority control on the possession, in my view, on the light squares. 06:41.650 --> 06:46.060 So with B seven the target black plays rook D eight. 06:47.380 --> 06:48.490 But here. 06:49.380 --> 06:51.420 Och, it doesn't want to indulge. 06:51.420 --> 06:55.050 Bishop takes B7 so the Queen takes his frightened. 06:55.050 --> 06:56.670 We have Bishop See for now. 06:56.670 --> 07:00.060 There's a strong frats here of Bishop B five check. 07:01.110 --> 07:06.810 We have Bishop before so that interferes with White's control of B five if H five just to demonstrate 07:06.990 --> 07:13.600 Bishop B five check, Queen D five would fratton not just taking the route, but also the queen after 07:13.620 --> 07:14.550 queen drops back. 07:14.550 --> 07:18.780 We've got an almighty pin on the D file that's going to just win material. 07:19.110 --> 07:22.620 If a six we're just playing queen takes B seven here. 07:23.190 --> 07:27.720 Bigger voyage so Bishop before is tried C three, b five. 07:28.500 --> 07:32.190 So if Bishop E seven here we're back to Bishop B five. 07:32.190 --> 07:36.090 Check with that almighty pin that's just crushing as example. 07:36.090 --> 07:45.150 So B five, bishop E2, Bishop D six And now here, instead of taking on B five, we have Queen D five. 07:46.080 --> 07:47.070 This is really interesting. 07:47.070 --> 07:54.450 So Black's really pinned down here in center, King E seven and now getting rid of adult Square Defender 07:54.870 --> 07:55.770 with Bishop C five. 07:55.770 --> 08:01.920 So the Francis Queen size E five check we have Bishop takes Queen Tang's E five, check King D seven. 08:01.920 --> 08:07.740 Queen C five, Queen C seven, Queen F five, check King E seven. 08:08.070 --> 08:10.170 And now Queen takes E four. 08:10.170 --> 08:13.410 Check King D seven, Queen at five, check King seven. 08:13.410 --> 08:16.470 Rookie one one is building up forces against the king. 08:16.890 --> 08:19.950 We have rook these things and our bishop c four check. 08:21.890 --> 08:27.120 So this is a very accurate move to prevent rookie sex if Bishop takes B five. 08:27.140 --> 08:29.030 Jack Black has rookie sex. 08:29.030 --> 08:36.020 And actually this is about even yeah, black has resources here so important to rule out the rookie 08:36.020 --> 08:37.160 sex resource. 08:37.160 --> 08:47.120 So Bishop C for crack king D ain't if rookie sex we're just going to take on E sex and this possession 08:47.120 --> 08:55.400 is crushing so King D ain't we have Bishop takes B5 a sex bishop a fall. 08:56.030 --> 08:57.560 So let's count the pawns. 08:57.560 --> 08:59.030 Six pawns for whites. 08:59.450 --> 09:00.860 So four pawns for black. 09:00.860 --> 09:02.090 Two pawns up for the exchange. 09:02.090 --> 09:02.780 Not bad. 09:02.780 --> 09:05.300 King's unsafe g sex. 09:05.870 --> 09:07.880 What else if Rook have sex? 09:07.880 --> 09:13.220 Queen 85 Check wrote sex Queen E five actually fraternize here. 09:13.820 --> 09:15.380 Queen mating. 09:17.370 --> 09:21.360 So this would be quite problematic in various ways. 09:22.980 --> 09:26.100 And that site, I mean, it's a complex possession. 09:26.100 --> 09:29.340 Let's say King Queen takes G7. 09:30.060 --> 09:35.970 So anyway, G6 is played Queen S3, King C eight. 09:36.000 --> 09:37.320 This makes things a lot worse. 09:37.350 --> 09:39.130 Queen C five was needed. 09:39.150 --> 09:45.930 So, for example, this possession, there's still a bit of a fight and it's unpleasant for black and 09:45.930 --> 09:49.770 losing another pawn that white has an advantage building up still. 09:49.860 --> 09:51.870 But King makes things a lot worse. 09:51.870 --> 09:55.440 Can you see there's a tactical move now by Karpov for ten points. 09:55.440 --> 09:56.790 What would you play with White? 09:59.310 --> 10:04.830 So that authority that on the light squares is useful because it's actually restricting a king escape 10:04.830 --> 10:05.520 square. 10:05.940 --> 10:07.530 So what would you play here? 10:08.590 --> 10:12.370 So it should give you an idea that there's mating combinations. 10:12.370 --> 10:13.780 We have rookie seven. 10:14.500 --> 10:15.160 Nice. 10:15.160 --> 10:16.690 So, Rook D one check is played. 10:16.690 --> 10:19.200 If Queen takes E seven, we have Queen eight. 10:19.210 --> 10:24.040 Check, Queen A seven, check King The eight is Queen bee eight. 10:24.040 --> 10:24.850 Checkmate. 10:26.770 --> 10:30.550 And here if king Queen size E seven. 10:31.480 --> 10:33.550 So yes, that's that's a winning line. 10:33.550 --> 10:37.270 So rook d rook d one check was played 10:40.000 --> 10:48.430 so this this is looking a rather desperate thing to do for King takes rd one queen takes E seven now 10:48.430 --> 10:58.860 so trying to hold on to being next change up for the two pawns if Queen D six check instead Queen 6e71 10:58.870 --> 11:01.900 can play queen a queen, a seven track. 11:02.380 --> 11:10.290 And here the king can be brought up the board to a checkmate, a nice checkmate If rook the eight check 11:10.570 --> 11:13.240 Bishop D seven check just simplifies. 11:14.350 --> 11:21.070 So just getting things off and this end game should be one this queen and game we're two pawns up So 11:21.070 --> 11:26.830 Queen takes E seven though was played trying to be the exchange up but what about King Safety Queen 11:27.150 --> 11:33.010 eight check King C seven Queen seven King D six, Queen B six check. 11:33.160 --> 11:35.230 And this is end of game. 11:35.230 --> 11:43.180 Now in this position, Black resigned if King E five, Queen D four check King six Bishop be free is 11:43.180 --> 11:44.590 check and mate. 11:44.590 --> 11:47.140 So a very, very nice game from Karpov. 11:47.830 --> 11:56.530 So we see an element of positional authority control lacking counterplay in a particular aspect. 11:56.530 --> 11:58.270 Loot square control. 11:58.270 --> 12:04.450 So a key moment, this lovely exchange sacrifice after Black's very interesting idea though very good 12:04.450 --> 12:07.960 credit to get a sax for this very, very interesting idea. 12:07.960 --> 12:10.420 It's just that Karpov was having none of it. 12:10.420 --> 12:17.800 He wasn't having all those complications he had in mind, like square grip and turn it into basically 12:17.800 --> 12:20.560 a positional pawn sacrifice for White's. 12:20.560 --> 12:28.330 Right now it's one pawn down, but for that positional pawn sacrifice, the authority on the line squares 12:28.330 --> 12:31.150 is significantly increasing now. 12:31.270 --> 12:37.570 So this is concretely getting onto the Knight Squares with tempo and then the lovely exchange sacrifice. 12:37.810 --> 12:44.170 For me, this is another iconic Karpov move, this rook DD five There are certain cop off moves which 12:44.170 --> 12:50.710 really excite me, and it's nice to point out all of those particular games so that you can have a lot 12:50.710 --> 12:52.690 of enthusiasm for Karpov games. 12:52.690 --> 12:54.460 This is an iconic example. 12:54.460 --> 12:59.050 Rook D5 five Positional exchange sacrifice after a possession or pawn sacrifice. 12:59.050 --> 13:05.110 So think about the implications for control and reducing reducing counterplay. 13:05.320 --> 13:07.450 Okay, So much.