WEBVTT 00:01.160 --> 00:02.120 Hi there. 00:02.360 --> 00:08.130 In this lecture, we see Roberto Peralta against Vadim Denisov. 00:08.150 --> 00:12.070 In 1995, the Hergé installments opened round one. 00:12.080 --> 00:14.870 This became known as the pole of We Can Z. 00:14.870 --> 00:17.330 So let's say D4 from Paradigm. 00:17.960 --> 00:19.850 The NSF plays 86. 00:19.850 --> 00:26.330 We have nice have three d5 C4 nines have 693 and LC six. 00:26.930 --> 00:28.460 So very popular nowadays. 00:28.460 --> 00:32.870 The semi slav keeping the bishop at home on C eight. 00:32.900 --> 00:35.630 It can be sorted out later every night. 00:35.660 --> 00:39.470 B seven we have Queen C two and now B thanks. 00:41.810 --> 00:49.850 Bishop e to Bishop b7 White Castles, Bishop a7 Rook d one Black Castles. 00:49.970 --> 00:51.980 And now we have the move. 00:52.010 --> 00:55.430 E4 d takes E4. 00:55.430 --> 00:57.800 So we're getting a kind of broken structure. 00:58.010 --> 01:00.860 In a way, this looks as though it might have come from a car icon. 01:00.860 --> 01:06.620 Now Queen C7 nine, C3 C5. 01:07.190 --> 01:08.540 So this opens up this Bishop. 01:08.540 --> 01:10.700 This Bishop is looking better now. 01:11.000 --> 01:13.940 It's blunted though of D5 at some cost. 01:13.940 --> 01:17.960 White is weakening dark squares here by playing d5. 01:18.200 --> 01:19.490 E tanks, C tanks. 01:19.490 --> 01:21.890 And now A6 Black has a band only structure. 01:21.890 --> 01:27.050 Now it's morphed into a Benoni basically without the bishop being on G seven. 01:27.050 --> 01:33.290 But the fundamental structure of black has a queenside pawn majority and could use the e-file. 01:33.770 --> 01:39.500 It's not quite like, but only actually because there isn't a pawn on the e-file. 01:39.500 --> 01:42.320 It's its only structure in terms of the queenside. 01:42.320 --> 01:45.350 Poor majority and black has a nice dark square grip. 01:46.070 --> 01:53.090 So we have noit h4 if a4 this might be better to stop b5 h six. 01:53.090 --> 01:57.620 This position looks to be about equal, so it's interesting. 01:57.620 --> 02:06.410 White's not playing a4 actually White just plays Knight h4 G6 and again A4 is not played Bishop H. 02:06.410 --> 02:13.130 Thanks, but that is hitting the rock and you'd think White would play A4 here but no. 02:14.420 --> 02:19.460 Instead of Bishop H six A4 Black could claim to have a small edge. 02:19.460 --> 02:22.700 Technically, this Knight's H4 might not be the best plan. 02:22.850 --> 02:29.990 This position, though it looks as though it's either a tiny H4 black or equal. 02:30.350 --> 02:30.710 So. 02:30.710 --> 02:31.190 Okay. 02:31.190 --> 02:38.330 So Bishop A6 Rook ain't eight Queen D to Bishop D six so Black looks comfortable on the dark squares 02:38.330 --> 02:41.180 here with that queenside pawn majority. 02:41.780 --> 02:43.550 There was a tactical option. 02:43.550 --> 02:50.660 Maybe white was tempting black into based on the knight on H four, which is Knight 65. 02:51.020 --> 02:58.130 However, after Knight 65, Bishop takes the E5 Queen 65 Bishop takes H4. 02:58.160 --> 03:03.230 It's not the end of the world for White's this position, it looks kind of dynamic. 03:03.230 --> 03:06.770 White has the Bishop pa black has light square weaknesses. 03:06.770 --> 03:13.250 This position here is about even overall so okay, black's not tempted for that and plays Bishop d6 03:13.790 --> 03:20.660 so also keeping pieces on, keeping complexity probing H two We have G which is actually a bit of a 03:20.660 --> 03:21.170 mistake. 03:21.170 --> 03:24.800 It seems like A5 might be more to the point. 03:25.430 --> 03:33.200 So this is basically saying if G takes this Queen G5 mating, so if that it has to be kind of ignored 03:35.120 --> 03:41.990 and if Bishop takes H to this position, Bishop e5 make bishop e5 bishop frame here. 03:42.470 --> 03:44.900 This should be about even. 03:44.900 --> 03:46.910 Yeah, it's an interesting position. 03:47.210 --> 03:50.360 Lots of dynamics, but Geoffrey was played. 03:50.360 --> 03:58.220 We have B5 and this does have the of kind of decentralising potentially White's position Bishop f3 b4 03:58.490 --> 04:07.400 so we get this nice e4 square to use now Knight e4 Quincy two Knight de f6 Knight G2 and now Queen D 04:07.400 --> 04:17.480 seven we have Knight Efraim Rook 88 There is a temptation here, a tempting move which looks actually 04:17.480 --> 04:22.520 fairly interesting, but you would need to know what you're doing in the follow up. 04:22.520 --> 04:24.350 Can you see what that is here? 04:24.350 --> 04:27.770 What could Black have played is the real CD eights. 04:31.160 --> 04:31.610 Okay. 04:31.610 --> 04:39.860 We we could have punted Knight takes f F2 here just to bring the kings after it and now Queen H three 04:40.670 --> 04:45.860 and this hits the bishops has kind of a tempo gainer and it's hitting H two. 04:46.160 --> 04:55.000 If Bishop are for safeguarding bishop, at least Rook takes Efrain Bishop takes Efrain back with it 04:55.010 --> 05:04.040 for a moment rookie free this position and black is getting D five leads to it seems an advantage for 05:04.040 --> 05:04.610 black. 05:04.790 --> 05:06.710 It's a very, very interesting play. 05:07.640 --> 05:13.070 And for example here Knight G for Shank, Knight takes free. 05:13.580 --> 05:13.970 Yeah. 05:13.970 --> 05:19.580 There are tactics which could end up favoring black, it seems. 05:19.580 --> 05:25.280 But yeah, it's crazy stuff, but black ends up being better here. 05:27.440 --> 05:27.920 Yeah. 05:27.920 --> 05:34.070 So very very interesting that night takes after already it's very, very dangerous here in this position 05:34.070 --> 05:39.230 So Rook 88 Bishop G2 Now this weakens Afri slightly. 05:39.230 --> 05:45.500 The idea presumably was to play afraid and embarrassed this knights on E4. 05:45.500 --> 05:46.850 It's got no squares at the moment. 05:48.380 --> 05:51.040 Okay, but now guess what? 05:51.050 --> 05:54.350 Black plays for ten points. 05:58.840 --> 06:00.880 So it's a very interesting position. 06:02.250 --> 06:07.440 Black actually plays now nine takes F2 here King takes F2. 06:08.580 --> 06:11.130 And yes, G4 was weakened, but it's controlled by the knight. 06:11.130 --> 06:13.090 Still, that knight is taken out. 06:13.110 --> 06:14.550 Rook takes F3. 06:16.020 --> 06:17.000 Crazy stuff. 06:17.010 --> 06:18.780 So Bishop takes E4 is played. 06:18.780 --> 06:22.650 If King takes E3, night G4 check. 06:22.740 --> 06:24.270 And the thing is here. 06:26.090 --> 06:29.030 Of the king D2 nine, six, eight, six. 06:29.660 --> 06:34.010 And actually black stands pretty well here. 06:36.500 --> 06:37.340 There's enough. 06:37.340 --> 06:40.280 There's enough pawns for the exchange sacrifice. 06:42.600 --> 06:45.720 And for example, Rook have won nine G4. 06:45.750 --> 06:48.140 Yeah, Black's got that lovely e square E5 square. 06:48.180 --> 06:50.280 This is nice for black overall. 06:50.280 --> 06:55.680 So anyway, Bishop takes E3 was played like G4, Shaq, King, F3. 06:56.370 --> 07:03.960 So if King g1 Black does just simplify with Knight takes, E3 takes out D1 and this position is just 07:03.960 --> 07:04.950 better for Black. 07:05.190 --> 07:06.990 So Black's doing really well. 07:08.980 --> 07:09.220 And. 07:09.730 --> 07:12.070 Okay, so it's two pawns up. 07:12.790 --> 07:21.250 So King three So nine takes H two was played King F two knight G for Czech King F3. 07:21.910 --> 07:26.890 And instead of repeating a check now this gets really interesting. 07:26.890 --> 07:29.290 This next move is super interesting. 07:31.010 --> 07:32.460 What did you think Black Place had? 07:32.480 --> 07:34.100 The king has been weakened. 07:34.550 --> 07:37.430 Can we use the full force of the whole team here? 07:38.240 --> 07:40.050 We can start too, with this next move. 07:40.070 --> 07:42.680 Queen e6 using that pin. 07:42.710 --> 07:44.060 Pawn for anything. 07:44.060 --> 07:47.960 Bishop 65 Jack We have Bishop for. 07:51.560 --> 07:52.430 Okay. 07:52.850 --> 07:55.070 So interesting position indeed. 07:56.300 --> 08:01.730 And here it looks as though it might have the queen for resource at various points. 08:03.160 --> 08:03.970 So. 08:05.020 --> 08:07.090 Or even king g4 of blacks. 08:07.090 --> 08:07.620 Not careful. 08:07.630 --> 08:15.700 So we have this careful move rook e8 intensifying the pressure and here one place Queen C. 08:16.420 --> 08:18.670 It's a very very dangerous position. 08:18.670 --> 08:19.600 This position. 08:19.630 --> 08:23.560 If Rook E1 for example, then just taking out D5. 08:23.610 --> 08:23.810 Yeah. 08:23.830 --> 08:30.400 We're going to be mating if rook ac one that looks more sensible, but then we take out D5 and what's 08:30.400 --> 08:31.890 going to have to give up the Queen. 08:31.900 --> 08:33.000 That's not good. 08:33.010 --> 08:35.800 Bishop H One Bishop takes the E5 is the problem. 08:36.100 --> 08:41.500 And here there's Queen H five Champ mate if Knight C free. 08:43.550 --> 08:44.990 What would you play in this position? 08:45.470 --> 08:47.570 This is just a variation, but it's for one. 08:50.660 --> 08:52.190 We can drag the king down the ball. 08:52.220 --> 08:53.630 This is a major pattern. 08:53.690 --> 08:55.640 Queen free, queen sack. 08:55.640 --> 08:59.280 But we're dragging the king down the ball not too far. 08:59.340 --> 09:00.800 Bishop c h ach. 09:02.240 --> 09:03.020 And for example. 09:03.020 --> 09:03.740 Here. 09:05.260 --> 09:06.460 Bishop E7 is checkmate. 09:06.490 --> 09:07.750 It's just too dangerous. 09:08.440 --> 09:08.800 Yeah. 09:09.040 --> 09:13.000 This is a very precarious position indeed. 09:13.030 --> 09:18.590 If King G5 here, there's a very cute check to make use of. 09:18.610 --> 09:19.180 What do you think? 09:19.180 --> 09:24.820 That one is a cute chap, which also potentially takes the escape squares out of the equation. 09:26.140 --> 09:26.800 Okay. 09:28.440 --> 09:28.590 Four. 09:28.590 --> 09:29.590 Ten points, huh? 09:31.000 --> 09:31.570 Yeah. 09:32.050 --> 09:33.220 F six, Jack. 09:34.980 --> 09:43.320 So on King Tanks, we have Bishop E7 checkmate on King H for the pawn is taking out G5. 09:43.320 --> 09:49.170 We have Bishop takes G3 checkmate on George six we have bishop and fight to me. 09:49.350 --> 09:52.440 So yes, basically the one king is doomed here. 09:52.860 --> 09:56.220 So going back to that king H for this Bishop E7 checkmate. 09:56.250 --> 09:58.620 The white king is doomed in this variation. 09:58.830 --> 10:05.220 When Knight C4 is played because of Queen E Fray, none of the game has a similar dragging down the 10:05.220 --> 10:09.140 king, dragging down the ball pattern of the Queen C four. 10:09.150 --> 10:10.110 So that's a clue. 10:10.140 --> 10:11.710 So what would you play here? 10:11.730 --> 10:13.620 It's not too much different, is it? 10:14.850 --> 10:18.690 So, yes, I hope you can use this at some point in one of your games. 10:18.690 --> 10:20.700 It will be a brilliant game if you can pull it off. 10:20.940 --> 10:26.400 So this pattern of bringing the king down the board sacrificially Queen E3, we need to use sacrifices 10:26.400 --> 10:29.730 to influence the opponent's pieces to bring the king down the board. 10:29.850 --> 10:31.920 So Rook takes every check here. 10:33.030 --> 10:38.550 King takes G4, Bishop c h ach King G5. 10:39.000 --> 10:43.770 So in the game, a very precise check was played here for 100 points. 10:43.770 --> 10:47.040 Can you see what the very precise check in this variation is? 10:50.420 --> 10:50.610 Okay. 10:50.660 --> 10:51.440 Very precise. 10:51.440 --> 10:52.880 Play H six check. 10:52.970 --> 10:57.680 Now, before we get into that, you might be tempted by F6. 10:57.680 --> 11:03.110 It looks convincing, except it does have an Achilles heel in the variations. 11:03.860 --> 11:08.330 Sure, if King tanks, we have Bishop E7, so it looks convincing so far. 11:08.330 --> 11:11.750 King H six, Bishop Jack and mate. 11:11.750 --> 11:16.100 But what about the legal move King H for? 11:19.980 --> 11:22.020 Yeah, This isn't so convincing. 11:22.500 --> 11:24.960 G five chat King H five is good enough. 11:27.220 --> 11:31.600 And if Luke Cage, a rookie five to go to five, guess what? 11:31.600 --> 11:34.390 White plays and we can resign after this next move from Wayne. 11:38.790 --> 11:40.200 You know, queen for. 11:45.570 --> 11:46.440 What do we do here? 11:46.470 --> 11:49.230 Yeah, we've sacrificed our coin looking very unsound. 11:49.350 --> 11:50.490 It's a rook up here. 11:50.580 --> 11:55.650 So, yes, in the game, the very precise age, six check is played. 11:55.830 --> 12:00.600 And this is absolutely wonderful, because now there's a mechanism here. 12:01.920 --> 12:10.920 If let's first have a look at King H four, then we have Bishop E seven. 12:11.040 --> 12:11.840 Checkmate. 12:11.850 --> 12:15.180 So King takes H six, dragging the king down the board. 12:15.180 --> 12:17.430 And there's a beautiful mechanism here. 12:19.390 --> 12:20.110 Okay. 12:20.500 --> 12:26.320 Rookie five shutting the doors behind the king for Bishop murphy to be an unstoppable mate. 12:26.350 --> 12:27.400 France, whatever. 12:27.400 --> 12:28.290 When it does. 12:28.810 --> 12:30.670 It's an unstoppable champ, mate. 12:31.180 --> 12:31.930 Wow. 12:31.960 --> 12:33.670 High precision stuff. 12:33.670 --> 12:35.180 Bringing the king down the board. 12:35.200 --> 12:38.050 Choosing the right checks is key. 12:38.590 --> 12:39.100 Yeah. 12:39.100 --> 12:44.380 If you have a similar situation when you've sacrificed your queen, you've got to make sure you can 12:44.380 --> 12:46.030 guarantee a checkmate. 12:46.060 --> 12:48.910 You've got to look at all of the moves of the king. 12:49.000 --> 12:54.010 And if F6 is not working, you've got to think about other things. 12:54.040 --> 12:57.790 I just want to make a cautionary note here. 12:57.880 --> 13:01.030 So sometimes brilliant sacrificial attacks, they do create beauty. 13:01.030 --> 13:07.870 But the downside is if you don't have absolute high precision, certain nuanced changes of position, 13:07.870 --> 13:10.090 like here, the Queen's not looking at G6. 13:10.090 --> 13:15.750 That's the kind of upside potentially, because in some regions the Queen might be sacking on on G6 13:15.760 --> 13:18.750 if we're not careful here, the Knights protecting G3. 13:18.760 --> 13:26.920 So it makes for different checking sequences to to kind of fit the exact details of the position. 13:26.920 --> 13:31.510 So checks in one variation might be completely inappropriate in another. 13:31.660 --> 13:37.450 So in this main line of the game, F6 becomes inappropriate and H6 is the move. 13:37.450 --> 13:43.500 But if we go back to that other line with Knight C Frame with the Queen on G6, you'll note that while 13:43.510 --> 13:51.310 I'm going to note hit you, that actually we get a situation where, hold on, why didn't in this variation 13:52.000 --> 13:56.380 with bishops the hack, why didn't this mechanism work here? 13:56.800 --> 13:58.390 So this is a key safety point. 13:58.390 --> 14:01.000 Why didn't the mechanism of H6 work here? 14:01.540 --> 14:06.100 Because if we play like this, why has Queen Thanks, G6, Jack. 14:08.390 --> 14:09.980 And what's going to be winning here? 14:10.760 --> 14:11.120 Yeah. 14:11.120 --> 14:12.450 This is not a clear checkmate. 14:12.470 --> 14:12.950 Now. 14:14.800 --> 14:23.350 So my complaint 94 and why it's been so up, we don't want to be in the situation because of these little 14:23.350 --> 14:24.400 details of position. 14:24.400 --> 14:26.230 We've played this sacrificial attack. 14:26.440 --> 14:28.050 And don't blame me. 14:28.060 --> 14:30.580 This is a bit of a section. 14:30.580 --> 14:32.590 If you can bring it off. 14:33.040 --> 14:36.070 It's like this could be a creative work of art. 14:36.490 --> 14:41.620 And, you know, you can increase your Twitter followers, social media followers sharing this game 14:41.620 --> 14:43.570 out, but it could backfire on you. 14:43.570 --> 14:51.130 You've got to have high precision checks based on the exact details and placement of the opponent's 14:51.130 --> 14:51.490 pieces. 14:51.490 --> 14:53.590 This is a warning as well. 14:53.590 --> 14:57.160 There is a downside in, you know, the practical results. 14:57.160 --> 15:02.920 And obviously, if if if like you're a professional player, you know, the professionals, they would 15:02.920 --> 15:08.290 absolutely need to make sure, you know, prize money might be at stake, that everything is working 15:08.290 --> 15:11.440 correctly in all variations, appropriately so. 15:11.440 --> 15:15.550 Factoring in the finances of where the pieces are is absolutely key here. 15:15.910 --> 15:19.060 You might really the result might be absolutely important. 15:19.060 --> 15:24.940 But, you know, if you want to create a creative masterpiece, which might be talked about hundreds 15:24.940 --> 15:30.550 of years later, this pattern of bringing the king down the board is one of the more spectacular attacking 15:30.550 --> 15:31.360 patterns. 15:31.960 --> 15:36.010 So with that aside, so let's return back to this position now. 15:36.910 --> 15:43.180 So safety point, I thought I should emphatically kind of demonstrate the safety point. 15:43.180 --> 15:45.190 We've got to get the right checks, guys. 15:45.190 --> 15:45.790 Absolutely. 15:45.790 --> 15:46.870 Get the right checks. 15:47.140 --> 15:47.830 Okay. 15:47.830 --> 15:52.840 So let's continue now from this position, brief discussion. 15:52.990 --> 15:58.410 So here we can actually choose to bring the king further down the board, guarantee it. 15:58.720 --> 16:03.640 The king is on the sixth, then shut it out from returning to the fifth. 16:03.640 --> 16:07.030 So a beautiful mechanism indeed to be aware of. 16:07.180 --> 16:13.000 Maybe by analogy, if you're in games where you bring down the king, make sure you get the right checks, 16:13.000 --> 16:14.710 the guarantees of checkmate. 16:14.710 --> 16:17.710 Otherwise you might just sacrifice your queen for nothing. 16:17.710 --> 16:21.880 So yes, there is a risk, but there's a huge creative rewards. 16:21.880 --> 16:25.870 These aren't just points for your your club or online or for tournament. 16:25.880 --> 16:31.630 These are beauty points, creating something absolutely beautiful, a work of art on the chessboard. 16:31.750 --> 16:39.340 And that's why it was called the poll of We Can Z OC That's a much.