WEBVTT 00:01.050 --> 00:01.720 Hi there. 00:02.040 --> 00:08.310 In this election, we're going to use a very, very important technique for checkmating the king as 00:08.310 --> 00:09.530 efficiently as possible. 00:10.350 --> 00:17.400 If we bring all King up to AFTA, let's say King you for now check and let's say King differe for a 00:17.400 --> 00:17.790 moment. 00:18.630 --> 00:22.430 We can play Racan for and this was strength's, the king's kind of rectangle. 00:24.390 --> 00:28.890 So the king is confined in these kind of squares. 00:31.290 --> 00:33.420 That's like the king's rectangle right now. 00:33.840 --> 00:35.160 That's the king the two. 00:36.210 --> 00:39.840 And now we can can find even more if we look at the king's rectangle. 00:39.840 --> 00:46.170 Now the king has these squares to play with right now. 00:47.070 --> 00:56.640 King see, then we can bring the king, let's say King B to King Day, to King eight, to King C two. 00:56.640 --> 01:01.800 And we've really confined the King's Square now to a single square. 01:02.220 --> 01:03.330 And it's rook free. 01:03.330 --> 01:03.860 Checkmate. 01:04.500 --> 01:06.060 Let's see that again. 01:06.060 --> 01:07.280 Kind of magical, isn't it? 01:07.290 --> 01:11.490 We don't have to spend ages driving the king to the back row. 01:11.790 --> 01:21.690 So King E four, we said check king differe if King EF five instead. 01:24.810 --> 01:31.590 Then King Avery of King E5, a very efficient way here, instead of checking to get the king step backwards 01:31.590 --> 01:37.040 and eventually to Frank, there's a much quicker way, which is rook the in this position. 01:37.530 --> 01:45.450 So you're driving the king into a smaller kind of rectangle of the king at five, again, without any 01:45.450 --> 01:45.990 checks. 01:46.260 --> 01:50.400 We just play Rook E for driving the king into a smaller rectangle. 01:51.270 --> 01:53.820 And here again, Rook had four. 01:53.820 --> 02:00.030 So all of these subtle little moves we've actually been restricting the king and we're making huge progress 02:00.030 --> 02:02.640 because the king's rectangle is restricted. 02:03.270 --> 02:13.230 And now we do take time to move on king here and then ask the panel what they're doing in this position 02:13.230 --> 02:14.220 of the king Afri. 02:14.400 --> 02:19.650 So keep waiting and here we can finally restrict the king again. 02:19.890 --> 02:26.820 We've got them on this side of the board now and we just bring down Paul King and we're getting very, 02:26.820 --> 02:27.960 very close to checkmate. 02:30.170 --> 02:31.720 This is a key waiting we've had. 02:34.050 --> 02:40.110 So they have to go to change things and I'm looking for Checkmates, so it's a very, very interesting 02:40.110 --> 02:42.810 process of kind of not using any chance. 02:42.840 --> 02:45.720 This is the really professional way of doing things. 02:46.260 --> 02:52.500 So without using any chance, you were just noting that the Kings got a limited bit of activity, a 02:52.500 --> 02:57.750 rectangle, so rook and forhow without any checks asking where it's going. 02:58.200 --> 03:06.750 If King Seefried, then we can have a look at this where the king just helps a little bit and then this 03:06.960 --> 03:14.190 restricts that King's rectangle and then King Sivewright, we've got the king to be mated on this road. 03:14.190 --> 03:16.480 Tensioning so like that. 03:17.100 --> 03:23.160 So this is a very, very efficient method of shrinking the king's rectangle. 03:23.760 --> 03:28.200 If we go with King E five to start off with King Afrik, let's have a look at this again. 03:29.430 --> 03:35.370 This method Rook A5 restricts the king's rectangle here. 03:36.900 --> 03:46.080 And again, we're restricted in the king's ranks and we rook a form and then here a key weighting move. 03:47.280 --> 03:50.280 And then we're driving the king into restriction here. 03:50.700 --> 03:58.770 This restricts the king, that key rectangle and now the king's confined, extremely confined, just 03:58.770 --> 04:01.240 waiting for assistance for the final chapter here. 04:02.580 --> 04:04.080 So this is a key waiting move. 04:04.080 --> 04:07.800 If King a framework, one that means so here. 04:08.040 --> 04:08.460 Yeah. 04:09.180 --> 04:13.290 So it's a very, very nice method, not involving a lever of checks. 04:13.950 --> 04:17.910 You just kind of restricting the opponents King's rectangle. 04:19.650 --> 04:24.150 So just to recap, once all the main pattern trilemma. 04:25.050 --> 04:25.860 So Chank. 04:28.650 --> 04:39.210 And if King defraying look out for it's really a restrictive move asking him what to do if we restrict 04:39.210 --> 04:45.190 again and we're slowly making that rectangle just shrinking, we're shrinking that right. 04:45.210 --> 04:46.860 And what the king has got. 04:47.160 --> 04:48.960 So it's very, very, very efficient. 04:49.490 --> 04:50.910 And for example, here is checkmate. 04:52.740 --> 04:55.730 So I hope you've got the basic gist here. 04:55.980 --> 04:59.330 It's restricting King's rectangle of escape. 04:59.760 --> 05:01.470 It's the most efficient method. 05:03.690 --> 05:05.310 There is a far less efficient method. 05:05.310 --> 05:11.880 If you are worried about this, there is a far less efficient method which you could use, which. 05:14.460 --> 05:21.030 If you're in blitz games, it's it's not that great, but this is the slow donkey method up the mountain 05:21.510 --> 05:26.910 where you could decide whether you want to take checkmate the opponents on the franc. 05:27.550 --> 05:33.210 OK, so the slow donkey method here, you play like this and you're waiting for them to play there so 05:33.210 --> 05:35.670 you can drive them one more robot board. 05:36.300 --> 05:44.460 But then you end up with this kind of loop like this where you have to go one road at a time and you 05:44.460 --> 05:46.200 can see it's pretty inefficient. 05:46.440 --> 05:51.900 You have to use a waiting move here and it's quite a lot of moves. 05:51.900 --> 05:53.640 But you will get there in the end. 05:53.640 --> 05:54.810 You will get there in the end. 05:55.500 --> 06:00.710 But here you want to, like, be efficient here at least. 06:01.560 --> 06:03.620 So waiting for them for this drive. 06:03.630 --> 06:04.650 More, more roback. 06:05.670 --> 06:13.140 You can see it's a less it's a less efficient method than what we saw, far less efficient here. 06:13.140 --> 06:15.400 We need the weighting move here to wait for King. 06:15.420 --> 06:19.770 These things we can do things, but yeah, we can go like this. 06:19.770 --> 06:29.070 If you want to use the donkey method don't up the mountain then you can use this for if they go here 06:29.490 --> 06:32.640 then we're checking them to go back so they could persist. 06:35.700 --> 06:41.610 But the a number of moves, this is a lot more moves, a lot more moves. 06:46.830 --> 06:49.910 Yeah, I mean, this is this is Michael Donkey, my friend. 06:51.600 --> 07:00.630 OK, so which does the job I mean, a win is a win is a win and it's an expression. 07:00.670 --> 07:03.060 Yes, but let's have a look. 07:03.990 --> 07:11.580 So this method of the shrinking rectangle is the preferred one, because especially if you're up against 07:11.850 --> 07:14.490 clock pressure and a professional game. 07:17.220 --> 07:23.880 So not having a particular bias for having to get the king up of there, you're just looking at the 07:23.880 --> 07:30.510 king's rectangle more you restrict in the game, more and more in a virtual rectangle, which kind of 07:30.510 --> 07:37.210 shrinks if you look at this is shrinking, by the way, of playing with shrink that rectangle. 07:37.230 --> 07:42.690 In fact, we're not by striving, looking at all up there, we you know, we're going to make it the 07:42.690 --> 07:44.050 most efficient such thing. 07:44.910 --> 07:47.190 So here we're going. 07:47.370 --> 07:54.510 And when I'm winning very, very efficiently, because we haven't been biased at all for mating at the 07:54.510 --> 07:55.240 back row. 07:55.860 --> 08:00.840 So, OK, so there's the donkey methods, which I don't recommend. 08:00.840 --> 08:04.950 You should really train on the shrinking rectangle method and. 08:07.650 --> 08:16.370 Just just like this, go with King E5 sucking at free here and so we're not biased, we don't care if 08:16.370 --> 08:21.890 the king comes this way, we've got that rectangle set up and we're shrinking it. 08:24.380 --> 08:29.430 So this is systematic shrinking and then we're totally restricting the there. 08:30.470 --> 08:32.900 And you can see how much more efficient this is. 08:33.980 --> 08:41.180 So the shrinking rectangle method is the one I'd recommend, not the donkey method. 08:41.840 --> 08:49.100 Try and practice with a friend or chess computer or that relative, that shrinking method the most efficient 08:49.100 --> 08:58.400 way because say you play chess etc online or fast chess and you really need to win quite quickly. 08:59.100 --> 09:04.360 So it's actually kind of important to know the optimal method, not the donkey method. 09:04.910 --> 09:12.470 So to recap, good luck in practicing from this position as the example, the rectangle method, shrinking 09:12.470 --> 09:18.800 rectangle, no bias when you're making the king it just shrinking that rectangle around the opponent's 09:18.800 --> 09:21.800 king quite rapidly and so much.