WEBVTT 00:00.930 --> 00:01.770 Hi there. 00:01.800 --> 00:07.410 In this lecture, we see Max Ogawa against Alexander Alekhine in the 1945 World Championship match. 00:07.410 --> 00:09.860 This is round four, the fall for Max. 00:09.900 --> 00:12.360 Oh, we have to have sex from Alekhine. 00:12.390 --> 00:16.560 C4 g6, lt C4 and now Grunfeld defense. 00:16.560 --> 00:24.240 So Garry Kasparov, who very much likes Alekhine games, also later played the Grunfeld defense. 00:24.540 --> 00:26.820 So this is survived the test of time. 00:26.820 --> 00:29.120 This opening queen be free. 00:29.130 --> 00:36.630 We have this is the Russian variation where y accepts potential tempo gainers against the Queen in exchange 00:36.630 --> 00:38.880 for usually a very nice center. 00:38.970 --> 00:47.730 We have D take C4 Queen, take C4, Bishop G-7, Bishop F4 and now the C seven point is actually moved 00:47.730 --> 00:48.750 to protect it. 00:49.110 --> 00:58.920 Rook D1 and now Queen A5 so this suppresses by pinning it suppressing E4 here black could take on E4. 00:58.920 --> 01:09.180 We have an opening move Bishop d2 I'm pinning the knight now we have B5 Queen B free and now b4 not 01:09.180 --> 01:18.120 seemingly worried about the C5 square hand like A4 we have a6e free and now Bishop e six, Queen C two 01:18.450 --> 01:27.240 and now constant kingside B free rook ab eights and now Bishop differing here, you might ask. 01:27.240 --> 01:28.470 Hold on, hold on. 01:28.680 --> 01:30.210 What's the fun of Queen takes? 01:30.450 --> 01:35.370 C six Doesn't this also kind of hit There's method in the man's head to be greedy here because we're 01:35.370 --> 01:42.660 hitting white is hitting a A6 black has Bishop C ET though and this position there is a bit of counterplay 01:42.660 --> 01:49.740 here after rook d8 Rook C1 Knight defined this some counterplay for black for example this situation 01:49.740 --> 01:57.990 Bishop b7 Queen B5 Even if the Queen's come off black can now play knight c free looking at G2 and white 01:57.990 --> 01:59.940 would have to tread a little bit carefully. 02:00.510 --> 02:07.710 Bishop F1 for example, because if Knight takes C3 B takes this position, starts to be quite good for 02:07.710 --> 02:08.280 black. 02:08.280 --> 02:15.630 Black can take time to munch the rook with a small edge if Bishop f1 Sure, you know this is still actually 02:15.720 --> 02:20.520 a reasonable position for white, but yeah, you can see some reasons anyway. 02:20.520 --> 02:23.640 Why Queen take C6 wasn't used. 02:23.640 --> 02:25.950 We have Bishop de free instead. 02:26.670 --> 02:30.210 Rook FC 892 and now C5 here. 02:31.320 --> 02:32.460 So we have. 02:32.460 --> 02:34.550 This is an interesting pawn sacrifice. 02:34.550 --> 02:38.940 So Alekhine likes his pawn sacrifices as a prelude to major attacks. 02:39.060 --> 02:43.320 It's a pawn sack because of Bishop takes A6 this hits. 02:46.190 --> 02:49.910 The rook on C eight. 02:52.380 --> 02:52.710 So. 02:52.710 --> 02:53.520 Okay. 02:54.950 --> 03:00.260 If Knight takes C5, Knight takes C5, D takes Rook, take C5. 03:00.260 --> 03:02.690 This position would be very pleasant for Black. 03:02.690 --> 03:04.940 Look at that C3 square, for example. 03:05.660 --> 03:07.520 So Bishop takes A6. 03:08.960 --> 03:11.170 Queen St's A6 and now Knight takes C5. 03:11.180 --> 03:12.680 So what is the point here? 03:13.310 --> 03:18.080 Well, Queen B5 is played and. 03:20.730 --> 03:23.910 A key point here is that one is prevented from castling. 03:24.870 --> 03:27.540 If White Castle says Queen takes it too. 03:27.630 --> 03:33.460 So that's one point of the pawn sacrifice for what is played, which is a mistake. 03:33.480 --> 03:36.090 Actually, E4 was better. 03:36.180 --> 03:44.490 So for example, Bishop G4, F3, if, if I'm trying to destabilise this Knight Queen B one E2 6494 03:44.490 --> 03:53.430 is possible and actually black and then Castle with some king safety comforts in the game with knights 03:53.430 --> 04:00.420 have for we have actually Bishop G4 trying to provoke dance quel weaknesses, trademark alekhine dance 04:00.420 --> 04:01.380 square weaknesses. 04:01.890 --> 04:09.210 Bishop f5 might have actually been even more accurate if e4 there's no tanks E4 and if Queen C4, Queen 04:09.210 --> 04:13.020 st c4 b6 there's a strong E5 hare actually. 04:14.100 --> 04:15.660 So for example. 04:17.750 --> 04:27.920 If 9294 nine takes E for Bishop, take C for black has enough pressure points G2 and C4 here as compensation. 04:28.160 --> 04:30.350 For example Bishop C to hear Rook take C4. 04:30.350 --> 04:31.170 Black's fine. 04:31.190 --> 04:32.650 Black's doing very well. 04:32.660 --> 04:36.980 So Bishop F5 was also a plausible move, maybe even a little bit more technically accurate. 04:37.100 --> 04:44.630 The Bishop G4 We have F3, but now E5 same kind of ideas undermining C5. 04:45.200 --> 04:50.360 We have no F3 if f tanks g4 e6 f4. 04:50.390 --> 04:52.760 This leaves White's position in ruins. 04:52.880 --> 04:55.250 In fact, Queen E to check Queen. 04:55.250 --> 04:57.110 Thanks G4 check rookie to check. 04:57.110 --> 05:06.260 This is leading to a checkmate so fd3e takes d4 f takes g4d takes E3. 05:06.800 --> 05:15.110 This is quite problematic for White Bishop takes E3, Knight takes G4, Bishop F4 and now Castling rights 05:15.410 --> 05:16.430 are about to be removed. 05:16.430 --> 05:18.770 Bishop C free check or nearly nearly there. 05:19.280 --> 05:20.540 Rook d2. 05:20.930 --> 05:22.520 Rook st c5. 05:23.910 --> 05:28.290 Might take five if Bishop takes bait here, you might to. 05:28.320 --> 05:29.340 It's quite a complicated position. 05:29.340 --> 05:31.830 There is the bouncing move, Queen ain't Jack. 05:32.760 --> 05:38.820 And yeah, you can see that if King and Funnel King do D1, there's at least 90 free check. 05:38.820 --> 05:43.740 -- king and queen, for example here, 93. 05:43.740 --> 05:47.580 Check for king, King and queen or king of one point e free Jack. 05:48.150 --> 05:49.820 So one of us might do 95. 05:49.830 --> 05:53.610 We're just taking that and this is going to be crushing anyway, so. 05:53.610 --> 05:57.150 Okay, so Night Taxi five is played. 05:58.050 --> 05:59.550 Queen, take C5. 06:01.520 --> 06:03.320 Now here, Bishop Slingsby ain't. 06:05.130 --> 06:07.650 I'm not trying to kill Alekhine's own resources. 06:07.650 --> 06:13.500 He doesn't play Queenie Frechette because that uses up the free square, taking away the 90 free resource. 06:13.500 --> 06:14.940 So what would you play here for? 06:14.940 --> 06:15.930 100 points. 06:20.330 --> 06:20.960 Okay. 06:23.260 --> 06:24.340 Queenie free. 06:24.370 --> 06:24.680 Sorry. 06:24.910 --> 06:26.200 Instead of Queenie Free, Queenie. 06:26.230 --> 06:27.130 Seven Shack. 06:27.340 --> 06:29.290 And now 90 Free Shack. 06:30.610 --> 06:33.910 So that mechanism to win the Queen Night Taxi to Rook takes C two. 06:34.390 --> 06:35.680 We have H five. 06:35.710 --> 06:39.070 It's easier for black to play this position and also as a pawn up. 06:39.340 --> 06:41.410 Rook D1, Bishop G7. 06:42.370 --> 06:49.210 We have h ring f5 thinking about undermining the pawn chain and getting things open against the king 06:49.210 --> 06:49.720 here. 06:50.320 --> 06:55.030 Bishop f4 Queen E4, Bishop C seven, Queen E free shank. 06:56.080 --> 06:58.810 We have King B one And now? 06:58.810 --> 06:59.560 Yes. 06:59.560 --> 07:00.910 What would you play here for? 07:00.910 --> 07:01.810 Ten points. 07:03.580 --> 07:03.820 Yeah. 07:03.820 --> 07:06.130 We want to open up the King A fall. 07:06.700 --> 07:10.840 We have B tanks and full B three setting very difficult problems to solve. 07:11.950 --> 07:15.370 We have eight tanks, B Frank queen tanks, B free chat and it's losers. 07:15.370 --> 07:15.970 White material. 07:15.970 --> 07:22.990 Now Bishop H six Check Rook Daily two But Alekhine is in no rush to to kind of take on D2. 07:23.020 --> 07:29.380 It plays Queen takes a force of the frat hair queen A one checkmate needs to be addressed. 07:29.380 --> 07:41.290 Bishop e5 Addressing that for a moment, we have King H seven, Bishop C free Queen B five Bishop the 07:41.290 --> 07:44.200 full Queen E two exploiting that pin. 07:44.200 --> 07:49.300 And you can see that black's about to win a whole rook now instead of just an exchange. 07:49.900 --> 07:58.720 G for Queenie one check King B two Bishop takes T to last trick Saloon prattling rook h ain't checkmate 07:58.870 --> 08:00.970 but Bishop C one check in here. 08:00.970 --> 08:02.980 White's resigned. 08:05.100 --> 08:08.610 So yes, if Rook st C one Queen D to check will pick up. 08:09.060 --> 08:11.070 The bishop will be trivially one after that. 08:11.700 --> 08:13.020 But what else? 08:14.700 --> 08:15.810 King B1. 08:15.810 --> 08:17.880 We can just play Bishop E for each. 08:17.890 --> 08:19.650 I can thank the Bishop. 08:21.400 --> 08:27.940 If King be free we can play queen e6 check rook C4 and just take HD on G4 and take on G4. 08:28.120 --> 08:30.850 There's no problem here as long as we don't get mated with Rook. 08:31.240 --> 08:31.840 Checkmate. 08:32.200 --> 08:33.730 So yes, an interesting game. 08:33.730 --> 08:38.080 Very, very aggressive starting from an initial pawn sacrifice in this Grunfeld. 08:38.170 --> 08:43.300 So we go back, the initial pawn sacrifice starts to set White's problems. 08:43.300 --> 08:44.890 So interesting. 08:45.010 --> 08:49.240 C5 square is trying to be locked up. 08:49.240 --> 08:51.730 Well it had to be locked up with Bishop takes A6. 08:51.760 --> 08:57.160 Nevertheless, the king is being kept in the center because of the A2 Knights. 08:57.910 --> 09:03.910 So when hearts play, it seems in this position E4, that would have objectively been the right way 09:03.910 --> 09:04.900 to play this. 09:05.500 --> 09:07.240 So Knight A4 played instead. 09:07.240 --> 09:12.490 And we get some weakness, provocation and destabilisation of White's position. 09:12.490 --> 09:18.190 But basically basically yeah, discouraging white from ever castling here. 09:18.820 --> 09:27.160 And this is just a position which is getting kind of nasty here with the King and Sansa losing the queen. 09:27.160 --> 09:33.040 And this imbalance is is basically winning for black with great play as was shown. 09:33.610 --> 09:38.830 It's much more easy for black to play this position and open up lines is a very, very natural way of 09:38.830 --> 09:39.460 playing. 09:39.850 --> 09:41.170 So, yeah, very constructive. 09:41.170 --> 09:43.270 I hope you enjoyed this game as much as me. 09:44.260 --> 09:45.910 I'll take you to that final position. 09:46.180 --> 09:47.200 Great stuff. 09:47.230 --> 09:48.010 Thanks so much.