WEBVTT 00:01.080 --> 00:09.390 Hi there in this long shot, Jonathan Spilman, one of Britain's leading grandmasters at the time 2006, 00:10.050 --> 00:18.360 he's playing with the black pieces against Visa and he plays an absolutely marvellous tactical combination 00:18.360 --> 00:21.580 here, which does involve a discovery attack. 00:21.930 --> 00:26.220 I wonder if he can work it out if I give you five seconds to pause the video. 00:30.090 --> 00:31.170 So blacks play. 00:33.840 --> 00:40.020 It seems as though we can attack the queen in various ways with discovery attack from the bishop, but 00:40.020 --> 00:46.590 you know what, unfortunately, you know, if we played G-7, then doesn't quite eliminate the discovery. 00:46.590 --> 00:48.460 Attacker rotates seven. 00:49.170 --> 00:49.980 What's the big deal? 00:50.700 --> 00:53.210 Can we make this a big deal, this whole mechanism? 00:53.220 --> 00:55.200 Is there a way to make a big deal out of it? 00:56.790 --> 01:00.650 Well, it turns out there is so five cents for the video. 01:00.660 --> 01:01.700 It's not Ruggie seven. 01:01.710 --> 01:02.340 That's a clue. 01:03.390 --> 01:05.190 It's actually OK. 01:06.480 --> 01:07.470 Five cents both for the. 01:12.450 --> 01:18.180 Roadsigns, Jeoffrey, Liz can't escape squares of the king, that's one thing to notice whenever you 01:18.180 --> 01:19.940 can't escape squares look a bit further. 01:19.950 --> 01:24.050 It's a prompter even look a bit further to get the real truth about this position. 01:24.720 --> 01:27.110 We're not simply losing the bishop here anymore. 01:27.810 --> 01:29.640 That isn't the end of the story. 01:30.630 --> 01:33.020 So why it took on seven. 01:33.510 --> 01:38.490 Now, what's the key move in this position, which is actually kind of a knockout blow? 01:39.780 --> 01:43.470 So check chance and some chance are better than others. 01:43.470 --> 01:48.240 When you do check, which has some some checks are so much stronger than others. 01:51.300 --> 01:59.540 What change we want to use her, we're faced with the firing squad, so to speak, Queenie's seven Checkmate. 01:59.970 --> 02:02.020 Yeah, we're up against it here. 02:03.860 --> 02:05.660 OK, I hope you can spot it here. 02:05.790 --> 02:13.860 What we're playing, it's actually Queen G one check and this forces takes G one. 02:13.860 --> 02:14.550 And after night. 02:14.550 --> 02:16.020 After that, checkmate. 02:17.460 --> 02:17.850 Yeah. 02:20.010 --> 02:21.210 There's another way to do this. 02:21.210 --> 02:23.310 If Rook G one Jack. 02:23.400 --> 02:27.750 You know, unfortunately this is Jack even if that was going to this is Jack anyway. 02:28.080 --> 02:29.310 It's just a disaster. 02:29.770 --> 02:32.430 The only way to do this to prove anything is Queen Jiwon. 02:33.270 --> 02:33.660 So yeah. 02:33.660 --> 02:42.180 And it's checkmate combination Anvil's after an initial discovery attack on the Queen, which also had 02:42.180 --> 02:48.030 the side effects, side effects of cutting off king escape squares, which enables that beautiful queen 02:48.030 --> 02:48.630 Jiwon. 02:49.320 --> 02:50.580 So a beautiful tactic. 02:50.580 --> 02:57.450 All in all, rotates Jeoffrey so much stronger than just dropping the bishop with Rook G7. 02:57.840 --> 02:59.280 You know, that's just hopeless. 03:00.300 --> 03:01.010 They'll be helpless. 03:01.020 --> 03:04.380 So because of what it takes, even as an example. 03:05.010 --> 03:08.430 So, yeah, Rook takes Jeoffrey Discovery attack. 03:08.970 --> 03:10.260 Look at the side effects. 03:10.980 --> 03:12.720 Maybe this is a good reminder. 03:12.720 --> 03:13.740 Look at the side effects. 03:14.010 --> 03:21.000 You're not just opening up the bishop, you've actually damage the opponents king's safety significantly 03:21.540 --> 03:29.970 by creating in particular this example, discovery, attack and bishop being left there was also shielding 03:29.970 --> 03:32.170 against the coronation of the queen and rook. 03:32.190 --> 03:34.110 So a crushing tactical blow. 03:34.110 --> 03:40.620 If White ignores it, then White is just going to lose the queen, you know, and then even worse, 03:40.620 --> 03:44.550 after there's a fork, you know, it's a total disaster after. 03:45.300 --> 03:46.230 So OK. 03:46.230 --> 03:46.460 Yeah. 03:46.500 --> 03:49.170 Hope you found Brooke takes Jeoffrey and Queen Jiwon. 03:49.440 --> 03:52.080 This is all good for your tactical calculation. 03:53.540 --> 03:56.080 You'll soon be like back home in Queens. 03:56.300 --> 03:58.800 It's in the Netflix series Queens. 03:59.180 --> 04:01.070 This amazing calculation. 04:02.050 --> 04:02.590 OK. 04:03.510 --> 04:05.940 I enjoyed that one so much.