WEBVTT 00:00.880 --> 00:01.620 Hi there. 00:01.630 --> 00:05.000 And it's actually we see Aaron Nimzowitsch against Akiba Rubinstein. 00:05.020 --> 00:08.700 This is in the 1926 Dresden tournament, Round five. 00:08.710 --> 00:11.410 We see the English opening from the switch. 00:11.410 --> 00:15.910 So C4, we have a symmetrical English night every night of six nights. 00:15.940 --> 00:19.510 C Frank D five Nimzowitsch takes on D five. 00:19.510 --> 00:21.970 Knight takes three, five, and now E four. 00:22.240 --> 00:29.470 Already this is a very interesting opening variation of the night before Bishop C4, which invites 93. 00:29.470 --> 00:32.920 Jack Rubenstein declined declined that invitation. 00:32.920 --> 00:34.090 He played e six. 00:34.450 --> 00:40.840 If Knight de fre check, the best move is King E two it seems. 00:41.380 --> 00:45.130 So this hits the knight encouraging might have for check. 00:45.130 --> 00:47.920 And this position is about even with King F one. 00:48.610 --> 00:56.830 So for example, 96 white can actually play the energetic d4c takes D four bishop takes E, six, bishop 00:56.830 --> 00:58.870 takes e six, knight takes the four. 00:58.870 --> 00:59.870 As example. 00:59.870 --> 01:03.730 And this is an interesting position with dynamic equality. 01:04.790 --> 01:12.070 So just in case you're wondering, King F one is inferior, Black is doing quite well. 01:12.070 --> 01:14.140 They're leaving Knight on D free. 01:14.830 --> 01:17.560 So that's slightly better for black there. 01:17.560 --> 01:18.570 But okay. 01:18.580 --> 01:21.520 So in any event, e six was played. 01:22.250 --> 01:30.540 There is rich castles, we have 9c6d free 94 Knight takes default, C takes D 492. 01:30.550 --> 01:36.340 So this reminds me of reverse tango positions where this bishops quite strong sometimes on the light 01:36.340 --> 01:42.820 squares, especially if black later plays e five and this knight can sometimes tango to g free and white 01:42.820 --> 01:46.090 can play like this and hopefully kick this knight. 01:46.330 --> 01:48.700 So this looks like a very interesting position. 01:48.700 --> 01:51.970 We see a six knight G frame. 01:51.970 --> 01:56.560 So the knight has kind of tangled in effect from the queenside to the kingside. 01:56.560 --> 02:03.550 So Bishop dd six f4 Black Castles now here is, it seems a slight inaccuracy. 02:03.550 --> 02:06.100 Queen Afraid there is a weakness of the last move here. 02:06.400 --> 02:13.570 The Queen is eyeing C two and there was an opportunity just to kick the knight so the knight cannot 02:13.570 --> 02:14.830 use C two. 02:15.220 --> 02:17.170 And this also gives a square for the bishop. 02:17.170 --> 02:19.240 So 9c6e5. 02:19.240 --> 02:22.630 This position with Queen H five is interesting. 02:23.050 --> 02:25.810 This cuts off F five. 02:25.810 --> 02:30.490 So this knight's not terrible and five's not playable here because of the pen. 02:31.360 --> 02:34.540 If f five we can just play Knight takes F five here. 02:36.280 --> 02:37.990 So yes, we're leveraging the pen. 02:37.990 --> 02:45.370 If Rook takes Queen takes leveraging the pen and if G 619 six check this position. 02:45.370 --> 02:47.200 The Queen H three is nice for white. 02:47.620 --> 02:54.730 So Queen afraid does seem a bit of an inaccuracy in the events of Knight E seven. 02:54.730 --> 02:55.690 Let's take this a bit further. 02:55.690 --> 03:01.780 The knight is quite good on E four and this reminds me of some favorable tango games I've had myself 03:01.960 --> 03:04.420 where there's a great potential for attack. 03:04.600 --> 03:11.170 So for example, this position, if black's going to compromise the dark squares, then we've got a 03:11.170 --> 03:15.880 strong attack potential here, building up, for example, Knight of six, check G four. 03:16.450 --> 03:24.610 And we can even say this is just a fictional line where we're doing really well with the attack. 03:24.610 --> 03:30.700 So, yes, there does seem to be a point of kicking the knight immediately and setting up a structure 03:30.700 --> 03:32.470 like this with the knight on E four. 03:32.860 --> 03:34.690 But Nimzowitsch is move Queen f4. 03:34.710 --> 03:36.670 It leaves C unattended. 03:36.670 --> 03:39.280 We have King H eight and our bishop DD two. 03:39.520 --> 03:47.320 One of the issues here is if a free now black can indeed play Knights e2 if rugby one black can be annoying 03:47.320 --> 03:48.670 making use of EA free. 03:48.670 --> 03:52.330 So this is all a bit of an issue difficult to solve now. 03:52.810 --> 03:54.820 So yes, prevention is better than cure. 03:54.820 --> 04:00.580 If all of this had been prevented, then yeah, it just wouldn't exist. 04:00.580 --> 04:04.180 But in this case, black's going to be doing quite well. 04:04.180 --> 04:05.590 Bishop takes a free. 04:05.590 --> 04:06.820 It's not great. 04:06.820 --> 04:11.590 So Bishop DD two is played, we have five and there's nothing. 04:11.620 --> 04:12.940 It's kind of restricted. 04:13.090 --> 04:23.650 And of course Black is underpinned the E six pawn rook 8e1 90 C six if Knight C two hare Roxy 193 White 04:23.650 --> 04:29.140 can actually just take on ea free in this case and for example D four is good and then taking on EA 04:29.140 --> 04:36.790 free, there's not enough for compensation for Black, although White's advantage is a little bit limited. 04:36.910 --> 04:39.790 But in the game 90 C six was played. 04:40.060 --> 04:45.190 We have rookie two so we have a situation where the E six pawn isn't pinned. 04:45.190 --> 04:55.480 There's knights feels restricted though here on G free so let's put a dark green. 04:55.480 --> 04:57.820 It does feel like a restricted pace. 04:57.820 --> 04:59.800 So nimzowitsch here played e tanks. 05:00.090 --> 05:00.750 Five. 05:01.050 --> 05:05.310 After e times five, we have one of the most astonishing moves in the game. 05:05.310 --> 05:08.730 So it's played against a very classic, very strong player. 05:08.730 --> 05:13.770 Akiba Rubinstein, one of the strongest players in the world, might have got a giggle out of this next 05:13.770 --> 05:14.130 move. 05:14.130 --> 05:15.540 So can you guess what? 05:15.540 --> 05:18.090 Nimzowitsch played a lot of things. 05:18.090 --> 05:19.260 Which pieces are good? 05:19.260 --> 05:20.040 Well, you could argue. 05:20.040 --> 05:21.510 Well, this bishop's hand in by the pawn. 05:21.510 --> 05:22.530 It's not that good. 05:23.040 --> 05:25.530 Apart from that, Bishop, the other pieces are pretty good. 05:25.530 --> 05:28.900 But this knight is like restricted. 05:28.920 --> 05:31.950 85 isn't a particularly great opportunity. 05:31.950 --> 05:37.020 And we get a kind of early Carpathian retreat. 05:37.020 --> 05:39.070 Sometimes this is a clue. 05:39.090 --> 05:41.130 Sometimes the net positional gain. 05:41.130 --> 05:43.740 You have to do paradoxical looking moves sometimes. 05:43.740 --> 05:49.920 And this kind of move I've made use of many, many players have made use of in, for example, Kings 05:49.920 --> 05:55.470 Indian attack kings in the fence situations where we want to build up an attack, sometimes we need 05:55.470 --> 05:56.550 to reroute a knight. 05:56.580 --> 05:59.100 Can you guess what Nimzowitsch played for? 05:59.100 --> 06:00.450 500 points. 06:02.860 --> 06:03.270 Yeah. 06:03.310 --> 06:05.500 He actually puts the knight in the corner. 06:07.060 --> 06:12.760 It looks ridiculous at first sight, but Knight's can reroute. 06:12.760 --> 06:15.030 And the knight, if it can come to a tree. 06:15.040 --> 06:16.860 There's dangerous ideas of Knight G five. 06:16.870 --> 06:22.200 You can imagine also that there are tactical factors going on because the king is restricted here. 06:22.210 --> 06:25.120 So there's a tactical knight g five potential as well. 06:26.320 --> 06:30.450 So sometimes we need to take a step back to go two steps forward. 06:30.460 --> 06:37.660 The net gain of improving the worst pace is something sometimes it's a really valuable thing. 06:37.660 --> 06:43.960 Concretely in this position, it might not actually with best play, it might not actually achieve a 06:43.960 --> 06:44.350 great deal. 06:44.350 --> 06:50.500 But it's the principle of the net gain principle in improving the worst piece. 06:50.500 --> 06:56.890 Sometimes Knight's especially, you need to step them back sometimes or bishops step them back to go 06:57.070 --> 06:58.480 to be more active later. 06:58.480 --> 06:59.590 It's the net gain. 06:59.590 --> 07:02.650 You take a certain loss of activity. 07:02.650 --> 07:08.200 The knights like worst possible square in one of the corners but the net gain if it's springing back 07:08.200 --> 07:14.920 with a vengeance, that's interesting a free if we look at an alternative this position with a five. 07:16.660 --> 07:19.930 Is it that bad for one having the night on G three? 07:19.930 --> 07:21.190 Concretely? 07:21.820 --> 07:27.970 It's not entirely terrible, but the engines, you know, the modern engines don't really suggest an 07:27.970 --> 07:29.740 active plan here for why? 07:30.040 --> 07:32.440 So this wouldn't be very surprising. 07:32.440 --> 07:38.740 And if if it had been played against Rubenstein, if it followed something like this, there isn't anything 07:38.740 --> 07:41.290 really exciting happening here. 07:41.470 --> 07:43.210 If it ends up just on H five. 07:43.210 --> 07:44.830 Probing for weaknesses. 07:45.610 --> 07:49.630 If black doesn't oblige with weakness creation, it's not a big deal. 07:49.660 --> 07:52.090 If you look at this again, we've looked 88. 07:52.630 --> 07:54.090 That would be a mistake here. 07:54.100 --> 07:55.330 Rook takes, rook takes. 07:55.330 --> 07:57.430 The knight actually finds value in taking F5. 07:57.430 --> 07:59.950 But black doesn't have to play a mistake like that. 08:00.220 --> 08:02.560 So yes, it seems about equal there. 08:02.560 --> 08:06.610 But with Knight H one there is extra spice and it is a human against human game. 08:06.610 --> 08:11.470 And this must have come as a bit of a shock, this kind of move, this knight retreat into a corner. 08:11.470 --> 08:16.510 So if you know a lot of Karpov games nowadays. 08:16.510 --> 08:22.720 Well in later generations, the Karpov generation, you know, this idea of retreating knights reposition 08:22.720 --> 08:22.870 them. 08:22.870 --> 08:29.590 We take that for granted now as part of the aspect of improving the worst place we can improve the worst 08:29.590 --> 08:34.750 pace in paradoxical ways, you know, making it kind of even worse to start off with, but with a vengeance 08:34.750 --> 08:35.320 later. 08:35.320 --> 08:48.550 So 9f2 rook eight if h six this actually might be preparing for 9h32g5 for example 90 H free here. 08:51.600 --> 08:52.900 If Rook abates. 08:52.950 --> 08:58.110 Knight G five is indeed a total pain already. 08:58.440 --> 09:01.860 If H takes that, we have either Queen H free or Queen H five mating. 09:02.910 --> 09:05.340 So it would be kind of too late to avoid that. 09:05.340 --> 09:07.200 And this position is just good for why. 09:07.200 --> 09:14.580 You can see the knight is marvelous now on G five and it helps white have authority on the E foe. 09:14.580 --> 09:25.470 But but just the bell Black has g six here and in this particular game example the concept doesn't really 09:25.470 --> 09:29.820 have If black players like this, it doesn't seem to have such drastic rewards. 09:29.820 --> 09:30.840 It's about even. 09:30.840 --> 09:33.570 But in any case, this is a human to human game. 09:33.570 --> 09:37.320 And we have rook eight, Rook one rook takes rook takes. 09:37.320 --> 09:43.410 And indeed there is a reward now given for this knight reroute because of 98 black needed to play H 09:43.410 --> 09:46.920 six and if Knight H three for example B five bishop be free. 09:47.130 --> 09:50.610 There is Bishop b4 here to challenge the dance square. 09:50.610 --> 09:54.600 Bishop and this is about even this position. 09:54.600 --> 10:01.890 But with 98 there is a great reward awaiting this knight reroute Knight H three We have Bishop C six 10:03.030 --> 10:11.580 which is an inaccuracy again, if H six Knight G five then again the knight can't be taken. 10:13.850 --> 10:14.950 Because of Queen H5. 10:14.960 --> 10:23.390 But Black can play Bishop a four with the idea of sometimes be five to try and win this bishop. 10:23.510 --> 10:24.560 Exchange it off. 10:24.770 --> 10:29.420 This position is going to be a small edge for white. 10:29.450 --> 10:32.030 White does have that dangerous night on G five. 10:32.690 --> 10:40.400 So OC Bishop C six though we have Queen H five, G six and it does look like a dangerous attack position 10:40.400 --> 10:45.290 now with these dark square weaknesses being held against black. 10:45.320 --> 10:54.110 If eight or six though night g five we are looking at things like Queen G six now as example. 10:54.230 --> 10:56.060 Say a terrible move as example. 10:57.560 --> 11:00.950 Yeah, we're going to play Queen Sex houses Black the H seven. 11:00.950 --> 11:03.440 If they take, then we play queen age five, mate. 11:04.430 --> 11:10.850 So let's imagine here after 95 rook f six to defend G six White still has a nice advantage. 11:10.850 --> 11:13.520 The knight's really been successfully rerouted. 11:13.520 --> 11:15.560 So this is a really great pattern. 11:15.560 --> 11:20.600 The pattern of improving the worst place we already in these variations, we start to see the power 11:20.600 --> 11:21.260 of things. 11:21.260 --> 11:28.400 G six is weakening the diagonal, and this pawns a bit vulnerable on D four in any case. 11:29.000 --> 11:31.160 So we see Queen H four. 11:33.280 --> 11:44.230 And King G7 and now Queen F2 targeting this pawn during the bishop to see five if by the way on instead 11:44.230 --> 11:47.770 of g six if h six yes G five. 11:48.840 --> 11:51.840 We'll have sex for the night's just good on on g five. 11:51.840 --> 11:55.470 So G Sex Queen H for King G seven, Queen F two. 11:55.470 --> 11:56.310 Bishop C five. 11:56.310 --> 11:57.810 So protecting D four. 11:59.550 --> 12:02.880 Were there any other options here of Queen B sex? 12:03.240 --> 12:05.010 There's actually a strong move here. 12:05.010 --> 12:10.860 There's a kind of weakness of the last move, weakening E seven, Queen E one. 12:10.860 --> 12:13.770 And the thing is, you might think, well, the queen just goes back, right? 12:13.770 --> 12:17.430 But now 9g5, eight, six. 12:17.820 --> 12:18.990 And in fact. 12:20.360 --> 12:23.270 We can play Bishop a five. 12:23.870 --> 12:27.650 So the Queen also supports this Bishop A five, if be six. 12:27.770 --> 12:30.930 We can play an amazing resource here. 12:30.950 --> 12:32.210 Can you see what that is? 12:34.030 --> 12:40.570 Because otherwise if the Queen was can consider taking on DA followed by 96 check. 12:40.930 --> 12:42.070 So let's say be sex. 12:42.070 --> 12:43.480 What do we play here, you think? 12:43.880 --> 12:45.400 And it justifies the Nikon G five. 12:45.400 --> 12:49.630 It's now part of the attacking team that night, which was on H one. 12:50.020 --> 12:54.220 So Bishop takes B six, queen B six, rookie seven check. 12:54.700 --> 13:02.140 And here if I have 796 check and black's crumbling up to nine takes F eight, Bishop takes E seven queen 13:02.140 --> 13:04.180 takes E, seven blacks crumbling. 13:04.960 --> 13:08.050 If we look at this again, if Bishop takes e, seven queen signs e seven. 13:08.050 --> 13:12.730 Check this possession knight takes F seven and black's getting mated. 13:13.270 --> 13:17.890 So okay, so we have Bishop C five and now. 13:20.300 --> 13:22.610 Yeah, it's interesting. 13:22.610 --> 13:23.420 So. 13:26.610 --> 13:27.120 Yes. 13:27.120 --> 13:28.730 Very interesting stuff, Bishop. 13:28.740 --> 13:29.550 See five. 13:29.760 --> 13:32.040 So we have now B four. 13:33.930 --> 13:38.850 And the bishop goes to be says, if it's such a good position, let's just look at it for a moment. 13:38.850 --> 13:47.700 If not g5h6, we can play b four here actually, because H takes B takes, we're undermining D four. 13:47.700 --> 13:50.550 It's difficult for black to actually shield the four. 13:51.150 --> 13:54.210 This was ng5 so blacks crumbling there. 13:54.990 --> 13:55.750 And if Bishop. 13:55.770 --> 14:00.330 E seven we have actually rook tanks. 14:00.330 --> 14:01.680 E seven This is amazing. 14:01.680 --> 14:02.640 Queen 67. 14:02.640 --> 14:05.670 Queen 64, check Queen F six. 14:06.060 --> 14:06.900 And guess what? 14:06.900 --> 14:13.650 White can play here, which is super strong, which sorts out the g59 issue, ten points. 14:13.650 --> 14:14.430 What would you play? 14:15.610 --> 14:18.110 You know, we can actually play the beautiful Bishop C free. 14:18.950 --> 14:24.470 So if H takes we take on F six rook takes nasty pin F takes G five winning. 14:24.770 --> 14:26.750 So yes, fascinating variations. 14:26.750 --> 14:29.570 So B four though is interesting. 14:29.570 --> 14:34.610 Bishop B six holding D form if Bishop D six. 14:34.610 --> 14:36.440 Yeah, we're just going to take on D four check. 14:36.440 --> 14:41.870 So Bishop B six now Queen H four is played it turns out may be more accurate. 14:41.870 --> 14:45.170 Is Queen E one, Queen E one looking at E seven. 14:45.170 --> 14:47.660 So Queen D six, there's no G five. 14:48.260 --> 14:52.480 And here it's exceptionally dangerous for black. 14:52.490 --> 14:56.510 If Bishop D five Bishop takes D five Queen sex d five. 14:56.510 --> 14:59.390 We have the invasive rookie seven rook on the seventh. 15:00.110 --> 15:04.100 And here Knight takes H seven Brilliant advantage here. 15:04.100 --> 15:06.170 That knight is absolutely a menace. 15:06.620 --> 15:11.270 So anyway, Queen H four though is played rook E eight and now rookie five. 15:11.270 --> 15:14.990 This is a nice use of the hook on if I'm trying to liberate this bishop. 15:14.990 --> 15:22.070 We have nine of seven if rook tanks e5f tanks, Queen size five we have Queen H six check. 15:23.150 --> 15:28.700 And now if King F six because if King H eight, Queen F eight is checkmate. 15:28.700 --> 15:36.290 So say King F six, Bishop G five is check and mate. 15:36.290 --> 15:37.730 So that's quite vicious. 15:37.730 --> 15:40.790 So really Rook takes E five is a bad idea. 15:40.790 --> 15:47.750 And also if we consider h five we still have an attack with Queen F six check, 95 check. 15:47.900 --> 15:51.440 And here Queen eight check and mating. 15:51.710 --> 15:59.660 So nine of seven was played and now that was taken out, which sometimes amplifies dark squares when 15:59.660 --> 16:04.760 we use an exchange like this Bishop For Knight, it's the other color of squares which sometimes get 16:04.760 --> 16:05.630 ignited. 16:05.630 --> 16:07.340 So Queen takes up seven. 16:07.550 --> 16:09.560 If Rook takes e five hair. 16:10.430 --> 16:15.380 In fact, can you see what white plays, which is really good here? 16:16.580 --> 16:16.880 Yeah. 16:16.880 --> 16:18.380 We can protect our night. 16:18.920 --> 16:20.000 The night protect the bishop. 16:20.270 --> 16:22.680 And hit h seven if rookie, too. 16:22.700 --> 16:23.810 If we take out H seven. 16:23.810 --> 16:26.030 This is a brilliant, glorious attack. 16:26.420 --> 16:30.830 So this situation is absolutely glorious and it's just too dangerous. 16:31.970 --> 16:37.580 Okay, Black has a little bit of fun there for a moment, but now the fun is with white. 16:37.760 --> 16:39.050 We're winning the Queen. 16:39.350 --> 16:39.770 So. 16:39.770 --> 16:46.370 Okay, so in the game, Queen takes F seven was played 9g5 with tempo, Queen G eight trying to hold 16:46.370 --> 16:50.780 H seven Rook takes E eight, Bishop takes eight and now Queen E one. 16:51.950 --> 16:55.910 Bishop C six, Queen e7h8. 16:56.660 --> 17:01.190 And here it's very, very bad for black. 17:02.540 --> 17:04.880 There's a great move play, but there's two great moves here. 17:04.880 --> 17:09.020 Can you spot one of them or both of them for 100 points? 17:09.020 --> 17:09.800 Well, Nimzowitsch. 17:09.800 --> 17:11.480 Well I spent too many ten points. 17:11.480 --> 17:20.660 Nimzowitsch played B five, which is very useful for opening up this diagonal, but there's also 96 17:20.660 --> 17:25.250 which just threatens Queen F six know this is strong. 17:25.250 --> 17:26.750 Bishop D eight we're just going to take. 17:26.750 --> 17:35.510 So if H five, Queen F six and now we can make use of b five just to let the bishop be part of the attacking 17:35.540 --> 17:36.050 team. 17:36.050 --> 17:41.240 So 95 checking H six Now we use Bishop B four to go into f eight. 17:42.680 --> 17:48.320 So h four Bishop f h 96 threatening Queen G five Checkmate. 17:48.500 --> 17:54.190 This position, we're just winning screen, absolutely winning material up and we're going to be chat 17:54.200 --> 17:54.920 mating. 17:55.550 --> 17:58.310 But B five is also very strong. 17:58.520 --> 18:00.050 Queen G seven is played. 18:00.050 --> 18:02.600 So if Bishop takes B five, there's Queen F six. 18:02.810 --> 18:04.970 And actually we can take time just to win the bishop. 18:05.390 --> 18:08.780 If eight takes B five, we can play 96. 18:08.780 --> 18:14.780 So we've opened up this diagonal B4 to F eight and yeah, it's pretty hopeless. 18:14.780 --> 18:16.550 If Bishop D was taking. 18:16.550 --> 18:19.010 But what does Black actually do here? 18:19.400 --> 18:20.570 It's very difficult. 18:20.990 --> 18:26.300 And as mentioned, you know, H five we're transposing into other ideas where we can transfer the bishop 18:26.300 --> 18:32.870 to B4 to F eight, sometimes up to 95, you know, Bishop F eight, that kind of thing. 18:33.840 --> 18:37.120 When we find the check first and then Bishop B form, we're going to fight. 18:37.820 --> 18:39.530 So yes, it's a beautiful move. 18:39.530 --> 18:41.210 B five in its own right. 18:44.890 --> 18:49.510 And we see Queen G seven just giving up a piece, basically giving up the game. 18:51.130 --> 18:52.060 It's hopeless. 18:52.330 --> 18:55.870 So White takes on G seven, takes on C six, picks up. 18:55.870 --> 18:58.120 The game continues a little bit here. 18:58.420 --> 18:59.110 95. 18:59.110 --> 19:00.220 Bishops C seven. 19:02.750 --> 19:05.090 So it's not that many pawns for the piece. 19:05.510 --> 19:10.280 Maybe Rubinstein's annoyed because of Nimzowitsch is won earlier. 19:10.400 --> 19:13.040 So the game continues. 19:14.540 --> 19:15.350 And. 19:17.450 --> 19:19.400 Yeah, it continues a little bit, believe it or not. 19:19.400 --> 19:22.880 So a wall is set up against the king here with the knight and bishop. 19:23.540 --> 19:29.390 And yeah, this, this is not really a position where black and Swindell so here black resigned at move 19:29.390 --> 19:30.290 46. 19:30.290 --> 19:35.510 If the game continued to say black was being stubborn, what we could do is just actually move the king 19:35.510 --> 19:40.660 over into the black position so we can fix the pawn on a dark square. 19:40.670 --> 19:41.750 So that's immune to the bishop. 19:41.750 --> 19:45.170 And now we can use the light squares as an entry. 19:45.170 --> 19:52.280 So as example, the king could shift into the black position like this and then then start winning material. 19:52.640 --> 20:03.350 So the example 9h1 it's been an inspirational kind of night rerouting and the broader principle of improving. 20:03.350 --> 20:09.680 The worst piece has been called many things like MacDonald's role fishers role. 20:10.100 --> 20:13.370 It's been observed, you know, Fisher Games, he didn't really have a bad piece as always improving 20:13.370 --> 20:14.060 his pieces. 20:14.060 --> 20:21.440 So that is one of the essential default plans in positional chess to improve one's worse pace. 20:21.440 --> 20:28.220 And we see kind of a very historic, historic, iconic game example here where the knight was quite 20:28.220 --> 20:29.420 menacing after. 20:29.420 --> 20:37.730 So the paradoxical looking knight H one the idea of taking sometimes, you know, one step back to go 20:37.730 --> 20:38.990 two steps forward. 20:39.860 --> 20:42.830 Let me give you an analogy for websites. 20:42.830 --> 20:44.780 I mean, you might might be involved in websites. 20:44.780 --> 20:49.850 It might be like stripping out all the tables so it looks terrible. 20:49.850 --> 20:55.280 The site looks just like the information, but all in better structure, like a div. 20:55.280 --> 21:00.650 And then you get some stylist to restructure to restyle the site and they can do what they like to make 21:00.650 --> 21:01.550 it look marvelous. 21:01.550 --> 21:05.900 Sometimes you're taking a step back to go many steps forward. 21:05.900 --> 21:11.810 So initially it looks terrible, but it's like restyled later than night 65. 21:11.810 --> 21:16.010 So it's just something to bear in mind In the principle of improving the worst piece. 21:16.010 --> 21:18.350 It must have come as a psychological shock. 21:18.350 --> 21:22.970 You know, this kind of novel move, it doesn't come into categories seen at the time. 21:22.970 --> 21:29.630 So it's like a very mysterious night move, but it gives the basis for paradoxical looking positional 21:29.630 --> 21:33.680 moves based on the idea of improving the worst piece. 21:33.680 --> 21:36.800 So a very interesting, iconic game indeed. 21:36.800 --> 21:40.640 And Akiba Rubinstein was one of the top players in the world at the time. 21:40.640 --> 21:41.990 So great stuff. 21:41.990 --> 21:42.980 Inspirational. 21:42.980 --> 21:45.200 I hope you enjoyed it so much.