WEBVTT 00:01.410 --> 00:02.250 Hi there. 00:02.820 --> 00:06.390 In this lecture, we see an amazing game, a classic game. 00:06.390 --> 00:07.840 Very well celebrated. 00:07.860 --> 00:12.450 It's between Edwin Adams and Canasta in 1920. 00:12.480 --> 00:13.530 New Orleans. 00:13.530 --> 00:14.730 Let's have a look at this game. 00:14.730 --> 00:23.100 So, Adams with the way pieces plays E4, we have E five nines have three, D, six and now D, four, 00:23.130 --> 00:25.200 E times D, four and now Queen. 00:25.200 --> 00:30.960 Thanks d for this has an idea behind it after 96 to actually just pin the night so the queen can remain 00:30.960 --> 00:31.740 in the center. 00:32.010 --> 00:38.660 Why is volunteering now the Lions Queen Bishop And quite often when we do this we get darts. 00:38.700 --> 00:41.100 Square pressure, more square pressure than usual. 00:41.100 --> 00:43.890 There is a statistical benefit. 00:45.000 --> 00:46.500 So night C free. 00:46.500 --> 00:52.770 So statistically we could in theory, put more pressure now on dark squares because both these nights 00:52.770 --> 00:57.810 could be involved, this bishop could be involved whilst black has one less piece that could operate 00:57.810 --> 00:58.530 on dark squares. 00:58.530 --> 01:00.600 That's what I mean statistically. 01:00.870 --> 01:02.970 So it's an interesting situation here. 01:02.970 --> 01:09.690 We have nights, have six white castles, Bishop E seven, and now Knight D five. 01:11.520 --> 01:18.750 Bishop takes D5 so Black gives up that Bishop E takes and we have this shared file emerging. 01:19.620 --> 01:25.410 We have black castling Bishop G five and now C six. 01:27.660 --> 01:29.640 So okay, there are, there are options here. 01:29.640 --> 01:34.200 H six could have been played here and Bishop D two is about equal. 01:34.650 --> 01:40.560 Bishop F four this would be about equal of 97 and Bishop, Thanks Bishop H for here. 01:40.560 --> 01:43.050 If H six was played, it's actually a little bit of an inaccuracy. 01:43.050 --> 01:52.740 There's potentially black could play 1965 and we get a situation which is simplified, but it's still 01:52.740 --> 01:53.370 about equal. 01:53.370 --> 01:58.820 So anyway, C6 here was playing at C4 c c ten. 01:58.860 --> 02:01.140 So now we have two shared files. 02:01.140 --> 02:07.870 So the interesting situation, so the pawn structure is basically symmetric about one. 02:07.880 --> 02:18.930 It has a more advanced pull on the default than black rookie ain't rook f one and now A5 rook E two. 02:18.960 --> 02:24.840 And believe it or not, this next move Rooks here is actually a rather significant mistake. 02:25.350 --> 02:26.580 At least in the world of engines. 02:26.580 --> 02:28.200 This is a mistake move. 02:28.200 --> 02:32.250 Y is able to build up quite menacingly on the E4 here. 02:33.630 --> 02:35.100 Both sides kings. 02:35.100 --> 02:36.900 They haven't got any air. 02:36.930 --> 02:38.430 You know there's no lift, so to speak. 02:38.610 --> 02:40.110 No one has made any lift. 02:40.110 --> 02:40.860 Any air. 02:40.890 --> 02:42.030 Like my moving pawns. 02:42.030 --> 02:43.830 Give the king an escape. 02:44.100 --> 02:51.090 So bear that in mind here it seems black should have played H six here. 02:51.510 --> 02:57.690 This would help relieve any pressure build up if Bishop D to Queen D seven. 02:57.690 --> 03:06.240 This position has Bishop f A and it should remain an equal position with this e4 having of no great 03:06.240 --> 03:07.050 significance here. 03:07.080 --> 03:08.110 It's nowhere. 03:08.640 --> 03:12.330 No big deal if Bishop H for here. 03:14.640 --> 03:16.290 Knight takes the five. 03:16.890 --> 03:18.660 Queen takes this position. 03:20.070 --> 03:21.390 ROOK Thanks, Queen. 03:21.390 --> 03:22.710 Thanks, mate. 03:22.710 --> 03:28.350 Thanks each for this is actually quite nice for white. 03:28.350 --> 03:30.400 It's not as good as as earlier. 03:30.420 --> 03:31.980 This is actually quite nice for white. 03:33.750 --> 03:37.650 And if G5, though, let's look at this for a moment. 03:38.040 --> 03:42.960 Just for the record, Queen D seven Rook 89, Stage five. 03:44.280 --> 03:46.150 There's no immediate disaster here. 03:46.170 --> 03:52.500 Queen B six though the pressure on the EFL could be used tactically in relation to D six. 03:52.800 --> 03:56.400 So let's say Black kicks the Queen this position. 03:58.260 --> 04:05.740 Mine should really go back to basics here to be annoying and just accept maybe a repetition draw if 04:05.830 --> 04:06.850 that doesn't play. 04:06.850 --> 04:12.220 Rook six Hare if King G seven Bishop takes D6. 04:12.220 --> 04:17.200 This position was using that effort tactically, but it's still about even. 04:17.200 --> 04:22.030 That is one of the options that Black had really this H six for g five. 04:22.060 --> 04:29.440 Just for the record, if we go back here, by the way, if instead. 04:30.940 --> 04:32.350 Of Queen Bee sings. 04:35.130 --> 04:37.500 A friend, it turns out. 04:38.730 --> 04:39.250 Yeah. 04:40.320 --> 04:46.020 Bishop f6 would actually be potentially quite nice for black hair. 04:46.500 --> 04:51.780 So anyway, that's a side story of the game, which maybe isn't told too much about this game, so I 04:51.780 --> 04:52.650 thought I'd mention it. 04:53.010 --> 04:58.710 So Russia is actually technically a big mistake because it allows this build up on the e-file, which 04:58.710 --> 05:00.090 is difficult to parry. 05:01.200 --> 05:03.560 In a way, Black's already technically lost. 05:03.570 --> 05:06.360 Believe it or not, Queen D seven is played. 05:06.840 --> 05:13.280 So the problem here is if H6 now there's Bishop takes F6 and what does black do? 05:13.290 --> 05:20.730 Bishop takes black would lose the Queen with check, and it's grim to consider. 05:23.260 --> 05:23.510 You know. 05:23.530 --> 05:25.810 G Things have six looks absolutely grim. 05:26.830 --> 05:36.190 If B six this position as the example if G takes hair queen G for check, queen for 94 the night, it's 05:36.190 --> 05:41.590 going to go to a beautiful square potentially if 596 is even better here. 05:41.860 --> 05:45.760 And once just winning material there that's crushing that 96. 05:45.760 --> 05:55.210 So anyway, Queen D seven was tried and there is still an issue with this effort with double rooks why 05:55.210 --> 06:00.370 actually plays Bishop takes off sex and you might think, well, what's the big deal? 06:00.790 --> 06:06.280 There is a big deal made here of this battery on the e-file. 06:06.610 --> 06:09.160 Can you see what it is for 200 points? 06:09.160 --> 06:10.390 One is why it play here. 06:15.910 --> 06:16.240 Okay. 06:16.250 --> 06:22.490 One doesn't want to play rock tanks because then rock tanks and this is no big deal. 06:22.840 --> 06:28.480 Even no one plays a spectacular move here. 06:28.510 --> 06:32.050 Queen for trying to lure the queen away from ain't. 06:33.250 --> 06:34.420 Wonderful stuff. 06:34.420 --> 06:35.600 We have Queen Bee five. 06:35.620 --> 06:42.350 If Rook takes E to the night, protect C one so White could take the queen and say here with the knight 06:42.430 --> 06:43.810 just winning advantage. 06:43.840 --> 06:46.060 So Queen B five is tried. 06:46.660 --> 06:51.880 So just to put this on, the board of the Queen might lose his control of weakness of the last move. 06:51.910 --> 06:55.210 Basically, rook takes he ain't rook to his mate. 06:58.300 --> 07:00.370 So Queen Bee five. 07:00.880 --> 07:04.240 And now things get really spectacular here. 07:06.520 --> 07:13.480 If White plays a bad move here, White White's lack of air around the king could be exploited if White 07:13.480 --> 07:14.360 plays a fool. 07:14.380 --> 07:16.840 Can you see what black would do here? 07:16.870 --> 07:17.830 For the record. 07:21.780 --> 07:27.090 So the default weaknesses of the back row, you know, can be, you know, for both players in certain 07:27.090 --> 07:36.120 variations of this game, Black could play queen thanks to her after rook takes rook c one shank rookie 07:36.120 --> 07:39.150 one and then a back row mate happens. 07:39.150 --> 07:41.100 So why it has to be careful. 07:41.850 --> 07:44.220 So this next move is super clever. 07:44.550 --> 07:47.490 It's actually for 200 points. 07:47.490 --> 07:48.330 What would you play? 07:48.600 --> 07:51.360 So that is a key threat to identify. 07:52.350 --> 07:59.880 There's actually Queen C for basically shielding the rook, hitting the queen and still trying to lure 07:59.880 --> 08:01.430 the queen away from E8. 08:02.070 --> 08:03.630 We have queenly seven. 08:04.650 --> 08:11.130 So just to look at things here, Rook st C for rook types, E is crashing through for a main queen tank 08:11.140 --> 08:11.550 C4. 08:11.580 --> 08:17.250 This is crashing through for a main queen A since we just take on a gang and then mating. 08:17.250 --> 08:17.970 So 08:21.510 --> 08:27.450 it's a very interesting situation right now continues with another outrageous looking move. 08:27.540 --> 08:28.890 Can you see what that is? 08:33.970 --> 08:35.890 Okay, it's Queen C seven. 08:35.890 --> 08:39.400 So saying, look, if the rook moves or the queen moves, we're taking on E eight. 08:39.700 --> 08:41.290 We have Queen B five. 08:41.770 --> 08:46.840 So, yes, just to put this on the board, Queen 67, we're crashing through Rook, take C seven. 08:46.840 --> 08:48.010 We're crashing through. 08:48.970 --> 08:51.460 Okay, so Queen B five is played. 08:51.460 --> 08:52.570 So here. 08:55.110 --> 09:00.090 We've got we've kind of locked down the C file for a moment with Quinn on C seven. 09:00.420 --> 09:05.580 So here there's a very interesting move played. 09:09.270 --> 09:10.800 So can you guess what that is? 09:15.650 --> 09:16.300 Okay. 09:17.330 --> 09:19.100 It's actually a four. 09:20.970 --> 09:25.470 Yes, it will be a mistake to play Queen Saxby seven because what we're playing. 09:27.450 --> 09:27.630 Yeah. 09:27.720 --> 09:30.000 Queen Sexy two again, this is this is a nasty thing. 09:30.000 --> 09:33.450 If Queen takes eight, Queen takes one. 09:33.450 --> 09:37.890 And here Rook takes a piece up for black. 09:38.130 --> 09:39.540 So that wouldn't be too clever. 09:39.540 --> 09:42.390 Queen takes up seven If we look at this. 09:42.390 --> 09:45.360 If Rogue takes E to Rob, see one check. 09:45.360 --> 09:46.680 And this is just mating. 09:46.920 --> 09:51.810 So both sides have got to be aware of this kind of default downside that they've got. 09:51.990 --> 09:56.510 So a fallout does do some good thing here. 09:56.580 --> 09:59.580 It does a very good thing, kind of a magical thing. 09:59.580 --> 10:03.900 Here we have queen size and E4. 10:03.900 --> 10:06.180 And as a key point made now. 10:08.710 --> 10:10.660 But before we get into queenside, say four. 10:10.690 --> 10:13.630 If Queen takes E2, her rook takes E2. 10:14.170 --> 10:15.490 And what does Black do? 10:16.180 --> 10:19.120 If Rook takes her to Queen St St and then mating. 10:19.930 --> 10:20.980 So yes, Queen thanks. 10:20.980 --> 10:24.430 A4 trying to hold on to E8. 10:24.700 --> 10:28.450 But now another amazing move. 10:30.190 --> 10:31.150 Is played. 10:33.070 --> 10:33.730 Okay. 10:33.880 --> 10:36.550 It's actually rookie form. 10:37.000 --> 10:38.740 And this is very, very clever. 10:40.180 --> 10:42.910 We have Queen Bee five. 10:44.170 --> 10:49.990 If Queen takes E4 here, rotates E4, and again, black has a bad situation. 10:51.250 --> 10:55.180 If Rook takes E4, Queen St and that is actually a mating point. 10:56.500 --> 10:58.030 So Queen B five. 10:58.990 --> 11:04.270 And now the Queen is not looking at E two as a forcing move. 11:04.270 --> 11:09.790 Its like ruled out a key forcing move by having the rook on E4 instead. 11:09.820 --> 11:12.220 So guess what is a powerful move now? 11:12.220 --> 11:16.900 And the rooks also controlling of course the A4 square as well. 11:16.900 --> 11:18.880 So this makes the next move. 11:19.330 --> 11:23.290 It's like taking away escape squares of the opponent's queen, in effect, in effect. 11:23.950 --> 11:25.090 That's like in the Art of Checkmate. 11:25.090 --> 11:28.000 But we're kind of doing this to the Queen. 11:28.720 --> 11:33.970 So White's play here has a crushing blow for 200 points. 11:36.070 --> 11:36.510 Okay. 11:36.520 --> 11:38.680 It's actually Queen Bee seven hits in Queen. 11:38.680 --> 11:39.970 When does the queen want to go? 11:40.000 --> 11:41.800 The queen can't go to a four now. 11:43.640 --> 11:45.260 And the Queen has to hold on to it. 11:45.260 --> 11:46.340 Eight So this is end of game. 11:46.340 --> 11:52.250 If Queen a fall we're just going to take because we've got our work protected here on E one. 11:54.690 --> 11:58.800 If Rook B ain't Queen Sykes B five. 11:58.800 --> 12:01.920 And what does do takes those rook takes e8. 12:02.100 --> 12:05.100 So it's an absolutely astonishing game. 12:05.100 --> 12:07.380 But actually there's a debate. 12:07.410 --> 12:08.940 Is it analysis or an actual game? 12:08.940 --> 12:14.360 It's more likely to have been an analysis, but it's still super instructive engine's figure. 12:14.370 --> 12:21.000 It's not really accurate sequence and it shows the basically the default downsides of chess. 12:21.120 --> 12:25.230 When we don't make air for the king, we can, you know, it can lead to problems. 12:25.230 --> 12:30.540 And also when we do make air for the king, it's like unnecessary weaknesses that can also lead to problems. 12:30.540 --> 12:31.980 So chess is a hard game. 12:31.980 --> 12:34.050 KING Safety is a dangerous subject. 12:34.050 --> 12:38.740 It's a difficult subject to master the balance between making out or not making air. 12:39.410 --> 12:44.340 It really depends on the position whether we want to be attacking players or not. 12:44.340 --> 12:51.960 We need to play accurately and that's why it's good to have a kind of interest in details here for how 12:51.960 --> 12:53.430 the advantage emerged here. 12:53.430 --> 12:55.510 What chemo's black had missed out. 12:55.560 --> 13:03.720 So one gets this kind of overwhelming pressure situation on this e-file with, in effect, pressure 13:03.720 --> 13:08.580 on air, which is difficult to address after this combination queen fall. 13:08.610 --> 13:15.990 So for me, this is an absolutely iconic, beautiful demonstration of default downsides in chess. 13:15.990 --> 13:22.620 How, you know, even, you know, an opening sequence, which seems as though black didn't do too much 13:22.620 --> 13:29.520 wrong on this occasion, but it's actually a lost position after a particular inaccuracy in this game. 13:30.450 --> 13:37.260 So the inaccuracy is, okay, you know, if you look at it through engines, already 90 plus frames 13:37.560 --> 13:39.500 more than plus two after Roxane. 13:39.840 --> 13:46.710 So yeah, it just shows these default downsides are things we need to pick out downsides in general 13:46.710 --> 13:48.510 for accuracy of playing positions. 13:48.510 --> 13:55.080 So we, we want to get our ability to have final finishing combinations, but a smooth ride, getting 13:55.080 --> 13:55.410 there. 13:55.410 --> 14:00.090 We don't want to necessarily play like the romantic era with unsound gambits. 14:00.090 --> 14:07.410 We want to get into places in a sound manner so we can repeat and have consistently good results, repeat 14:07.410 --> 14:12.210 our attacking efforts and have a consistent level of results we're playing accurately. 14:12.360 --> 14:18.870 So yeah, this is a very accurately played game, especially from here to exploit. 14:18.870 --> 14:19.260 Roxy. 14:19.260 --> 14:22.380 I so hope you enjoyed that and so much.