WEBVTT 00:01.170 --> 00:08.580 Hi there in his nature, we have a position which actually is from the King's Indian defense for --'s 00:08.580 --> 00:16.470 attack and here it's blats play and there's a theoretical move which most players make use of, and 00:16.470 --> 00:24.060 it helps relieve the space disadvantage of the position and making sure this doesn't end up as a kind 00:24.060 --> 00:24.950 of bad piece. 00:25.260 --> 00:26.850 The move is Bishop G4. 00:27.840 --> 00:35.070 So the bishop doesn't actually mind, even though the bishop theoretically is slightly greater value 00:35.070 --> 00:36.870 than a knight, it doesn't actually mind. 00:37.260 --> 00:44.010 And in this particular circumstance of quite usually exchanging off on air free, it's ready to exchange 00:44.010 --> 00:45.020 off on air free. 00:45.810 --> 00:54.490 So, for example, after 1987, that bishop is ready and waiting here for the move, agreed to just 00:54.510 --> 00:55.290 exchange off. 00:55.980 --> 01:01.660 And actually, in doing so, it helps black intensify the pressure on the dance class as well. 01:02.220 --> 01:06.420 So there are broader considerations to do with the position overall. 01:06.420 --> 01:12.840 If we contrast this to a long theoretical move here, which doesn't involve swapping off the lights, 01:12.840 --> 01:15.300 choir bishop say might be the seventh. 01:16.380 --> 01:22.680 Here is an example where Black could actually get a very, very cramped position and the cramp is not 01:22.680 --> 01:23.990 helped by this ASX. 01:24.300 --> 01:26.100 Why is stopping B five here? 01:26.850 --> 01:27.830 Because of attacks? 01:27.900 --> 01:30.540 B, this is a classic mechanism with that pend --. 01:30.930 --> 01:32.730 So we can't catch hag's, we lose the rock. 01:32.970 --> 01:37.260 So blacks are pretty crammed state here, so say queen C7. 01:39.030 --> 01:47.070 And whereas this bishop actually going if we move it to be seven, why in this particular position could 01:47.070 --> 01:50.460 potentially build up quite nicely for the move A5. 01:50.850 --> 01:58.980 So we're left with this kind of not so brilliant bishop and you know, so sometimes it's better to prepare 01:58.980 --> 02:05.130 in advance which piece you really do need to exchange off, which is not going to be harmonious with 02:05.150 --> 02:12.420 the power structure later so we can build up and even play E5 and just has a brilliant position because 02:12.420 --> 02:16.380 we really are under pressure, a lot of our pieces now on the back row. 02:16.890 --> 02:23.760 So this is quite a passive position, all because we didn't want to kind of volunteer that Bishop exchange 02:23.760 --> 02:25.650 earlier, so why weren't significantly better? 02:26.520 --> 02:35.850 So most players of this particular opening play move like Bishop G for around here, and they don't 02:35.850 --> 02:38.400 mind taking off on Afri. 02:38.400 --> 02:46.650 So you can see that the position is actually far more better for black in terms of peace activity. 02:47.790 --> 02:53.490 So, for example, Queeny five, and this is actually a game of John, none with the black pieces against 02:53.490 --> 02:54.120 Kosal. 02:54.540 --> 02:59.850 And, you know, he got to play B5 and then this move might be six. 02:59.850 --> 03:02.370 And he had a great game after he went on to win it. 03:02.760 --> 03:04.920 So it's like a night and day difference. 03:04.920 --> 03:13.500 Sometimes when you have a certain peace exchange, you're looking to avoid a bad piece later on. 03:13.500 --> 03:16.890 You know that harmony between your pawns and your pieces. 03:17.310 --> 03:20.910 Sometimes you're trying to intensify, especially with a bishop exchange. 03:21.330 --> 03:22.860 It's the other color of the bishop. 03:22.860 --> 03:29.160 You're trying to intensify pressure on that set of squares on the other color, like the dark squares. 03:30.240 --> 03:37.500 So there are various very advanced considerations to do of exchanging pieces to be aware of. 03:39.610 --> 03:46.300 And when you're in cramped situations, you don't want to end up with a bad piece, which really has 03:46.300 --> 03:52.940 limited scope, so being able to exchange off those earlier is often a great idea. 03:53.440 --> 03:59.800 So that is actually, in this example, a very fair ethical move, a very theoretical idea within this 03:59.800 --> 04:01.390 so-called fourpence attack. 04:01.620 --> 04:03.700 I'll just tell you back from the stars who are aware of this. 04:04.270 --> 04:07.600 So this is an opening sequence called the King's Indian Defense. 04:08.140 --> 04:13.900 And, you know, black volunteers, whites have a very, very broad center of -- and, you know, 04:13.900 --> 04:15.820 potentially is a cramped position. 04:16.480 --> 04:19.240 And actually, ESX is the prelude in this particular game. 04:19.570 --> 04:28.180 But now Bishop G4, so be aware that in certain openings, the more you're effective in planers opening 04:28.180 --> 04:34.270 sometimes as part of the actual opening ferry, you'll find now that you do need to exchange off certain 04:34.270 --> 04:40.720 pieces to guarantee a certain level of harmony between your pieces and --'s to avoid a bad piece, 04:40.900 --> 04:46.120 sometimes to exert pressure on a certain set of squares of a certain color, especially if you're trading 04:46.120 --> 04:51.190 off a bishop for a knight, which usually under the material, you know, count system, it's like you're 04:51.190 --> 04:53.910 using your you're investing half a unit. 04:53.920 --> 04:57.320 If a bishops worth four and a half and you're giving up for a night. 04:57.610 --> 04:58.510 Isn't that silly? 04:58.510 --> 04:59.700 Sometimes it's not. 05:00.310 --> 05:02.200 So it has other advantages. 05:02.200 --> 05:09.040 But in the particular motive that you're potentially in a cramped, unharmonious, bad piece kind of 05:09.040 --> 05:16.930 situation, you know, one important piece exchanged minor peace exchange could make a huge difference 05:17.260 --> 05:19.210 to the livelihood of your position. 05:19.480 --> 05:23.590 So that's definitely something to factor in when you exchange pieces. 05:23.590 --> 05:29.290 You want to exchange with this kind of these deeper considerations, you know, about the position. 05:29.680 --> 05:35.860 So pawn structure and peace, harmony, not having a bad peace, having active plans later. 05:35.870 --> 05:41.170 You know that all factors in these are much more advance considerations for exchanging pieces. 05:41.920 --> 05:49.320 But definitely generally space, extra space has a responsibility with it as well. 05:49.660 --> 05:56.050 Sometimes you can actually exchange pieces when your you have less space than opponent and expose underlying 05:56.050 --> 05:58.360 weaknesses in the opponent's position. 05:58.660 --> 06:01.300 With space comes a responsibility. 06:01.780 --> 06:08.920 So generally the player in the more cramped position wants to exchange pieces and show up those weaknesses 06:08.920 --> 06:10.060 of the opponent's position. 06:10.330 --> 06:15.340 And when you have more space, generally, you want to keep the pieces on and use them to do something 06:15.340 --> 06:19.600 great, like a king attack to capitalize on that extra space. 06:20.350 --> 06:22.300 So space has a responsibility. 06:23.500 --> 06:28.480 It's like maybe if you have a bigger house, you have to clean up the rooms more frequently, whatever. 06:28.900 --> 06:32.590 So space does carry with it a responsibility. 06:32.920 --> 06:39.940 And when you have pieces exchanged off, it's like the scope for actually covering all those potential 06:39.940 --> 06:40.660 weaknesses. 06:40.930 --> 06:42.610 It sometimes becomes harder. 06:43.030 --> 06:49.420 So just bear that in mind that you don't want to end up if you're the person with the space, you don't 06:49.420 --> 06:54.340 want to end up with a load of weaknesses because your opponent is simplified and exposed weaknesses. 06:54.550 --> 07:01.060 And when you're low in space, you want to trade off particularly crucially bad, potentially bad pieces 07:01.300 --> 07:04.540 to make sure you can try and exploit weaknesses in the opponent's position. 07:05.110 --> 07:06.760 OK, and so much.