WEBVTT 00:01.080 --> 00:01.780 Hi there. 00:02.820 --> 00:04.920 You may recognize this position. 00:04.950 --> 00:10.810 This is from the famous opera game of pool Morphy, or you might not have seen it before, but anyway, 00:10.810 --> 00:15.030 I won't play here delivers a fantastic checkmate. 00:15.570 --> 00:21.660 If you check all checks, all the forcing moves, you may be able to find this wonderful checkmate sequence 00:21.660 --> 00:22.130 from here. 00:22.470 --> 00:23.610 So white playing. 00:24.420 --> 00:25.360 What would you play here? 00:25.740 --> 00:31.530 So even the most totally outrageous tracks, consider them go a little bit further, see if there's 00:31.530 --> 00:36.650 any killer common squares where more than one of your pieces combine on a key square. 00:38.160 --> 00:42.110 So that's the art of calculation, the process of calculation as well. 00:42.510 --> 00:46.560 But we can admire the pattern as well that results. 00:48.930 --> 00:57.420 OK, the key move is Queen Bee Achak after nighttime's, it kind of liberates that rock looking all 00:57.420 --> 01:02.900 the way down to the eight, which is a killer common square so we can play Rook the eight chameides. 01:04.560 --> 01:11.660 So in this case, the rook is actually the one delivering charmayne supported by the bishop. 01:12.690 --> 01:15.830 So it's named after this particular game. 01:15.840 --> 01:18.300 This opera might you might have wondered how. 01:18.450 --> 01:19.760 Hang on, King's Cross. 01:19.830 --> 01:23.690 Why wasn't the movie named after the opera game? 01:26.620 --> 01:28.150 That's actually a good question. 01:28.420 --> 01:34.300 No, there's more people, Wolf, he gets to chat, is named after him, basically two for the price 01:34.300 --> 01:34.520 of one. 01:34.540 --> 01:35.200 That's good news. 01:35.200 --> 01:41.620 Is that so there's this opera that was quite specific, is that there's the construction and the bishop 01:41.620 --> 01:42.460 supporting the rook. 01:42.820 --> 01:49.150 Does the chemie and the poor Morphy make to distinguish is where the bishops like doing the checkmate 01:49.210 --> 01:51.550 and the work is controlling the escape square. 01:51.570 --> 01:56.290 So interesting to contrast the two if you want to remember these patterns. 01:56.590 --> 01:59.080 But the essential thing is it's yeah. 01:59.080 --> 02:06.370 Rook and Bishop cooperating quite well and sometimes it's not the answer. 02:06.370 --> 02:09.160 Chakma is not quite correct and Squyres it's. 02:11.310 --> 02:17.280 Certain of your pieces are controlling all the escape squares and then you got a cherry on top, you've 02:17.280 --> 02:18.530 got a killer check on top. 02:18.870 --> 02:22.800 So the art of chameides is that art. 02:22.800 --> 02:25.940 You're essentially taking out the escape sequence systematically. 02:25.950 --> 02:34.540 Opponents can deliver a wonderful Chamique check made at the end to celebrate that lack of escape squares. 02:34.950 --> 02:41.100 So those making that constructions, hopefully you get better and better in real games, also being 02:41.100 --> 02:42.830 highly alert and sensitive. 02:43.050 --> 02:49.110 So whenever there's even the slightest change, any opponent's escape squares or lack of escape squares 02:49.350 --> 02:56.580 start looking out, honing in for forcing move sequences, which can really celebrate that fact of the 02:56.580 --> 02:57.180 chess board. 02:57.630 --> 03:02.220 If that is in the magic facts of your current position, you really want to celebrate that potential 03:02.220 --> 03:06.180 downside, downside being lack of escape squares. 03:06.200 --> 03:10.320 OK, so Opera Checkmates named after the famous opera game. 03:11.160 --> 03:11.760 That's so much.