WEBVTT 00:01.070 --> 00:01.940 Hi there. 00:01.970 --> 00:04.630 In this lecture, we see Ernst Grunfeld. 00:04.640 --> 00:10.310 Yes, the same name as the Grunfeld defense is named after him against Alexander Alekhine. 00:10.580 --> 00:13.100 This is a 1923 goals battle. 00:13.370 --> 00:14.840 Round two. 00:15.080 --> 00:22.820 So D4 from Grunfeld We have knight f6 from Alekhine c4 e6 knight c free d5. 00:24.800 --> 00:31.670 Just in case you're interested, the greenfield defense would have been with C4 G6 90 3d5. 00:31.700 --> 00:33.420 Just in case you're wondering. 00:33.440 --> 00:39.560 So anyway, this opening is just a Queen's Gambit declined Orthodox defense. 00:39.560 --> 00:49.640 So Bishop G5, Bishop E7, Knight's F3 and now Alekhine plays Knight Bd7 E3 from Grunfeld Alekhine Consoles 00:49.640 --> 00:50.090 Rook. 00:50.120 --> 01:00.440 C1 c6 Queen C2 A6 So there's a plan to kind of liberate this bishop potentially through the mechanism 01:00.440 --> 01:04.070 of D tank, C4, B5 and Bishop Be7. 01:04.070 --> 01:14.690 At some point we see a free H6 Bishop h4 rookie, eighth Bishop D3 and now that the Bishop's on D3 gaining 01:14.690 --> 01:18.440 a tempo with D2 C4 Bishop take C4 b5. 01:18.440 --> 01:26.300 So kind of trying to solve this problem through tempo gaining of that D2 C4, we have Bishop A2 it seems 01:26.300 --> 01:30.650 here this might actually be an inaccuracy. 01:30.650 --> 01:36.080 Funny enough, it seems Bishop E2 might be more solid. 01:36.410 --> 01:45.560 So if black tries c5 y could actually take on C5 and you can see that the structure is symmetrical here. 01:45.920 --> 01:54.980 So there should be theoretically less dangers for both sides and Y could take out F6 for this tactic. 01:55.100 --> 02:04.100 Knight takes B5 to hit C5 and this should resolve into a fairly peaceful situation, even situation 02:04.100 --> 02:04.580 here. 02:05.150 --> 02:05.510 So. 02:05.510 --> 02:12.980 Bishop E2 Yes, it seems as though Bishop E2 is kind of a safe bet if Bishop b7 Y could still take on 02:12.980 --> 02:14.240 F6 actually here. 02:14.360 --> 02:18.860 And this position is kind of it should be equal. 02:21.640 --> 02:22.510 Okay. 02:24.100 --> 02:26.500 So interesting stuff, but with Bishop, too. 02:26.530 --> 02:28.030 So why is this so bad? 02:28.420 --> 02:36.030 We see C5 Rook one and now Black really has a comfortable position. 02:36.040 --> 02:44.470 C 64 964 Queen B six The C eight Bishop issue is largely resolved. 02:44.500 --> 02:46.080 Bishop is going to come to B7. 02:46.090 --> 02:46.690 It does so. 02:46.690 --> 02:47.770 Bishop B1. 02:48.190 --> 02:55.510 Maybe this is the intention of Bishop A2 just to wrap around here from some for some potential tactics. 02:55.900 --> 02:59.260 But Black's pieces are quite, quite great here. 02:59.290 --> 03:03.670 Bishop b7 White Castle's Rook ACA and you can see that. 03:03.670 --> 03:04.420 Hold on. 03:04.570 --> 03:10.630 Why is it that White seem to be on fire now on the C file? 03:11.770 --> 03:16.480 This looks like a dangerous fall for whites with the queen on C two. 03:16.510 --> 03:20.790 So the queen kind of waste time, but a lot of damage has been done. 03:20.800 --> 03:22.210 95. 03:22.450 --> 03:28.680 Kind of implies night C four and sometimes night takes a free for rook type C for f y. 03:28.690 --> 03:33.730 It's not careful, but white actually makes things a lot worse here. 03:33.760 --> 03:36.310 Giving up the dance where bishop voluntarily. 03:36.820 --> 03:44.980 So this dance queen, bishop of our counterpart is really for me a very important ingredients for successful 03:44.980 --> 03:46.120 attacking chess. 03:46.120 --> 03:48.250 It's an extreme imbalance. 03:50.200 --> 03:57.310 And what was the option, though if Queen E2 that say Bishop ain't broke? 03:57.310 --> 04:02.950 C One knight C for this position is is nice for black. 04:03.220 --> 04:04.690 It really is comfortable. 04:05.170 --> 04:06.580 The pieces are great. 04:07.270 --> 04:09.700 But anyway, this actually makes things a lot worse. 04:09.700 --> 04:13.180 So we'll see why Now Bishop takes f6 Queen C two. 04:13.180 --> 04:20.890 Okay, The Queen is threatening to come in so G six, Queen two and now 94. 04:20.890 --> 04:30.220 And you can see actually Knight takes a free is threatening Faruk take C free bishop E4 is a kind of 04:30.220 --> 04:39.760 tactical trap being set and now Bishop G seven so not Knight takes a free can you see what White would 04:39.760 --> 04:41.080 play in this event? 04:41.350 --> 04:44.740 It's important to be aware of the opponent's nasty traps. 04:44.740 --> 04:48.160 What would you play as white hair if the knight takes a free? 04:49.320 --> 04:50.280 410 points. 04:52.430 --> 04:53.060 We've got. 04:53.060 --> 04:54.860 Yeah, there's a loose piece liability. 04:54.860 --> 04:58.700 We don't want to have these sources of danger. 04:58.880 --> 05:02.560 Queen Every hits F6 threatens. 05:02.570 --> 05:04.400 Bishop takes P7 as well. 05:05.390 --> 05:09.530 And if Bishop takes E4, the knight comes off the firing line. 05:10.160 --> 05:13.820 So F6 is hit as well as a free. 05:14.660 --> 05:16.820 So this would be a disaster. 05:17.330 --> 05:26.960 Bishop 60 for Rook thanks to E4 is still a disaster because of F6 Czech winning an exchange that we 05:26.960 --> 05:27.890 clairvoyance for one. 05:27.890 --> 05:36.480 So I'm going carefully sidesteps this by simply putting the bishop on G7 renewing the France of 1980 05:36.500 --> 05:37.160 A3. 05:39.280 --> 05:46.930 Okay, so we have Bishop 67, Queen P seven, Rook C one addressing nine six A3 by lending support to 05:46.930 --> 05:54.100 C free E five might be free, but why is getting positionally outplayed here after E4? 05:54.730 --> 06:02.800 In fact, now with the bishop looking at C free again is saying it's a free with pressure on C free 06:02.820 --> 06:03.220 there. 06:03.490 --> 06:07.210 So D for at least shields C free. 06:07.210 --> 06:08.450 But there's another target now. 06:08.470 --> 06:10.600 D for just to put it on the board. 06:10.600 --> 06:12.580 If King H one knight takes a free. 06:12.580 --> 06:14.040 Yeah, you know, this is great. 06:14.200 --> 06:16.270 Just take out that knight and a pawn. 06:16.270 --> 06:16.700 So. 06:16.720 --> 06:19.750 94 rook ain't rook. 06:19.900 --> 06:22.030 4195. 06:22.300 --> 06:23.920 We have 92. 06:25.470 --> 06:30.860 And this is now an unrelated piece, which, again, you know, it's a major source of liability potentially. 06:30.870 --> 06:36.600 We have different nice kind of octopus knights looking in all directions now. 06:36.930 --> 06:37.440 Yeah. 06:37.440 --> 06:44.880 One is in big trouble because of this amazing position that Black has transformed. 06:45.060 --> 06:54.210 So Rook takes the Queen tanking pressure on D4 and White in desperation plays F3, which is a disaster 06:54.210 --> 06:54.930 move. 06:56.340 --> 06:59.430 It's an absolute disaster move, as it turns out. 06:59.460 --> 07:06.480 Interestingly, if White plays before we get into F3, I mean, fundamentally it's weakening Dot square 07:06.480 --> 07:07.550 as the King's on dot square. 07:07.560 --> 07:10.370 So if you weaken dot squares, you're asking for trouble sometimes. 07:10.860 --> 07:16.530 If see free F5, the knight remains on D3. 07:16.530 --> 07:20.940 And here, for example, Bishop takes fall. 07:21.420 --> 07:24.180 This variation is just in Black's favor. 07:24.210 --> 07:27.600 Queen C5 Fretting Rook takes and winning the Queen. 07:28.170 --> 07:32.610 This position is just so it's just clearly in Black's favor. 07:32.610 --> 07:34.920 But Black has to play accurately here. 07:36.120 --> 07:39.930 Not Rook takes E4 because the Queen takes the queen. 07:39.930 --> 07:40.500 That's equal. 07:40.500 --> 07:47.280 But Queen E seven and there are big threats including. 07:48.670 --> 07:49.270 Queens. 07:49.300 --> 07:51.970 Queens have to check. 07:51.970 --> 07:59.110 So if nine have six, the best is king of seven, not Queen Sykes six because of Group Tasty three, 07:59.110 --> 08:02.080 but King of seven leaves Black in a winning position. 08:02.230 --> 08:05.140 This is just a winning position in the end game. 08:06.520 --> 08:07.600 So yes. 08:07.870 --> 08:13.330 So that's looking at 93, essentially this position. 08:14.370 --> 08:15.300 Is great. 08:16.690 --> 08:24.880 If King H one Queen D seven is powerful with the entire hair St st nine C getting out of the firing 08:24.880 --> 08:27.970 line, can you see what Black would play in this position? 08:30.260 --> 08:31.250 At some points. 08:33.730 --> 08:34.390 Yeah. 08:35.830 --> 08:42.550 Black would take out C three to weaken D one and now it takes F to checkers, basically winning the 08:42.550 --> 08:49.870 exchange to winning possession H free again Queen D seven and still this idea of bishop take C for L 08:50.200 --> 08:58.570 for if rook takes there's nothing takes e to check and black's the one exchange g free. 08:58.780 --> 09:05.140 Yeah this is just pain taking out d4 and this is just better for black. 09:06.160 --> 09:06.910 So. 09:09.380 --> 09:16.550 So in the game, though, Africa is a truly epic disaster incoming now for whites. 09:17.510 --> 09:19.710 So in this position, guess what? 09:19.730 --> 09:25.450 Altcoin plays, which really exposes don't square weaknesses and other liabilities. 09:25.460 --> 09:26.530 There's a liability here. 09:26.550 --> 09:30.920 There's a downside here to mix into the combination of ingredients. 09:30.920 --> 09:39.770 So is this of is this the science of attack attacking chess or is it about brutal tactical combinations? 09:39.770 --> 09:45.980 Well, this is related to the king, though, intimately, this next move as well. 09:46.340 --> 09:49.100 So we could say it's like attacking chess as well. 09:49.610 --> 09:50.870 It's just brutal. 09:50.870 --> 09:55.130 So black plays for 200 points. 09:55.130 --> 09:56.030 What does that play? 09:59.180 --> 09:59.530 Yeah. 10:00.010 --> 10:01.370 Route 64. 10:01.640 --> 10:03.830 Now, this needs to be calculated carefully. 10:03.860 --> 10:08.120 F tanks is F takes, E4 is played. 10:08.120 --> 10:12.920 If it takes the E4, Bishop takes the full, you might wonder. 10:12.920 --> 10:14.450 Okay, this variation is clear enough. 10:14.450 --> 10:16.280 We win the rook with check. 10:16.520 --> 10:19.130 But what about King F1? 10:19.910 --> 10:20.750 What happens here? 10:20.780 --> 10:21.960 Why is this dangerous? 10:21.980 --> 10:25.100 This is actually very dangerous for White's king. 10:25.610 --> 10:32.960 The bishop is controlling escape squares and it's like almost a taboo. 10:32.990 --> 10:39.020 Bishop make pattern with the queen substituting itself for a bishop emerges here because of what's. 10:39.020 --> 10:40.130 What's the key move? 10:42.220 --> 10:42.730 Yeah. 10:43.800 --> 10:45.180 Look forward tempo. 10:45.420 --> 10:46.920 And now Quincy for check. 10:46.950 --> 10:50.880 You can see that the queen is acting like a second bishop here. 10:51.300 --> 10:58.920 And this is just crushing because in particular, we need to nudge the queen from E to her E free. 10:59.490 --> 11:06.300 That's crushing Queen 60 for Queen E to checkmate all nine takes, G2, if you prefer. 11:06.570 --> 11:07.530 That's checkmate. 11:08.370 --> 11:11.460 So, yes, these are all pretty crushing considerations. 11:11.460 --> 11:23.070 Made her so white played F takes e4 instead, but now a beautifully crushing finish is played really, 11:23.070 --> 11:24.240 really nice. 11:25.080 --> 11:26.910 We have knights have for. 11:30.780 --> 11:33.060 And now he takes her fort. 11:33.090 --> 11:41.070 So you might think, okay, is this is it just to win a pawn with Rook takes and Bishop takes, what 11:41.070 --> 11:42.480 would you play here? 11:42.480 --> 11:45.810 Which is brutal, to say the least. 11:46.020 --> 11:48.510 So for 200 points here, blacks play. 11:50.140 --> 11:50.770 Okay. 11:54.540 --> 11:55.680 It's Queen C four. 11:55.710 --> 11:56.670 It hits E two. 11:56.670 --> 12:01.560 It hits A2 Quincy for Take C for his plate. 12:01.830 --> 12:03.180 If Queen E one. 12:03.210 --> 12:05.310 Yeah, we're just taking out A2. 12:05.370 --> 12:06.360 Thanks very much. 12:08.040 --> 12:09.450 So Queen St C4. 12:09.450 --> 12:11.640 And the point is, Rook takes D one check. 12:12.180 --> 12:14.310 Now, if the King moves, we're just taking the Queen rook up. 12:14.310 --> 12:15.420 So Queen f one. 12:15.420 --> 12:16.410 But now. 12:17.250 --> 12:17.970 Yes. 12:18.950 --> 12:19.730 Ten points. 12:19.760 --> 12:20.630 What are we playing? 12:23.710 --> 12:26.410 We celebrate the pin, we don't take on everyone. 12:26.410 --> 12:34.570 We play Bishop the four check to get maximum extraction of advantage from that pinned queen and white 12:34.570 --> 12:35.770 has to resign. 12:35.800 --> 12:39.520 If King H1 rotates, F1 is champ mate. 12:41.020 --> 12:43.300 This is a glorious game. 12:43.300 --> 12:51.370 Indeed a highly celebrated iconic game playing a classical opening and showing that the bishop problem 12:51.370 --> 12:52.540 isn't such a problem. 12:52.540 --> 12:58.720 Sometimes with this detailed C4 mechanism, it seems as though in the game, just because of Bishop 12:58.720 --> 13:04.180 A2, in fact that Black has a very comfortable game after Bishop A2. 13:04.210 --> 13:06.130 This is super comfortable. 13:07.210 --> 13:12.970 It seems the queen is in the wrong place on the C file here because Bishop B7 is going to be followed 13:12.970 --> 13:18.790 with Rook Kate, the Queen having to waste time moving plants, getting such a gorgeous position from 13:18.790 --> 13:25.300 this, opening the rook move and okay, it's a symmetrical pawn structure here as well. 13:25.870 --> 13:27.360 So why is black better? 13:27.370 --> 13:29.490 It's magical, isn't it? 13:29.500 --> 13:33.700 But the thing is, what makes things a load worse? 13:33.730 --> 13:37.900 Is this giving up of the dot square bishop? 13:38.380 --> 13:40.240 But yeah, the pain is setting in. 13:40.240 --> 13:44.890 This A3 is also, you know, it's kind of asking for Knight takes A3. 13:44.890 --> 13:52.300 It's like there is a target for the knight to be loose on C free sometimes if it's undermined. 13:52.420 --> 13:56.110 So yeah, it's just a positional accumulation of advantages. 13:56.770 --> 13:59.740 Sidestepping a key trap with Bishop G7. 14:01.240 --> 14:08.830 Yeah, loose pieces, unprotected pieces spell trouble creating a dominating knight on D free and this 14:08.830 --> 14:13.360 beautiful combination rook text e4 absolutely gorgeous stuff. 14:13.360 --> 14:16.210 I hope you've enjoyed this game as much as me. 14:16.240 --> 14:16.930 Wow. 14:16.930 --> 14:18.910 Let's just follow it through again. 14:18.910 --> 14:20.030 Queen C fall. 14:20.050 --> 14:21.490 What a wonderful finish. 14:22.120 --> 14:22.690 Wow. 14:23.050 --> 14:24.250 End of game here. 14:25.710 --> 14:26.430 Pets are much.