Discussion of anything and everything relating to chess playing software and machines.
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Vinvin
- Posts: 5228
- Joined: Thu Mar 09, 2006 9:40 am
- Full name: Vincent Lejeune
Post
by Vinvin »
Idea from KC's video :
After : 1. e4 Nc6 2. Nf3 d6 3. d4 Bg4 4. d5 Ne5
[d]r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - 1 5
Here 5. Nxe5! is strong.
2 runs with Stockfish_2020_07_03_x64_modern : 24 sec and 2m4s
Code: Select all
24 seconds to 2 minutes on my old computer for Stockfish to play 4...Nxe5
Stockfish_2020_07_03_x64_modern:
...
27/46+ 00:23 162 293 870 6 794 234 +0,64 5.Nc3
27/46+ 00:24 167 478 987 6 820 843 +0,91 5.Nxe5
27/46 00:24 167 915 849 6 822 796 +0,91 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.a3 Nf6 13.Nc3 d5 14.Nxb5 Nxe4 15.Ke2 Bc5 16.Be3 e5 17.Bxc5 Nxc5 18.a4 d4 19.Rhd1 Ne6 20.f3 Rd5 21.Kf2 Ra8 22.c3 d3
28/53+ 00:25 171 199 606 6 836 771 +1,00 5.Nxe5
28/53- 00:25 174 436 368 6 845 742 +0,82 5.Nxe5 Bxd1
28/53+ 00:25 175 733 717 6 849 347 +0,95 5.Nxe5
28/53 00:25 176 272 246 6 852 443 +0,90 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 Nf6 12.Re1 e5 13.Nc3 d5 14.Nxb5 Nxe4 15.f3 Nd6 16.a4 Nxb5 17.axb5 Bd6 18.Ra7 Rd7 19.Be3 d4 20.Bf2 Rc8 21.Bg3 Rc5 22.b6 Rb5 23.Ra8 Ke6 24.Kc1 Rxb6 25.Re8+ Re7 26.Rxe7+ Kxe7 27.Bxe5 Bxe5 28.Rxe5+ Kf6
29/50+ 00:26 179 996 503 6 865 640 +0,99 5.Nxe5
2nd try :
Code: Select all
Stockfish_2020_07_03_x64_modern:
...
34/54 01:45 725 536 888 6 876 670 +0,64 5.Nbd2 Nf6 6.h3 Bxf3 7.Nxf3 Nxf3+ 8.Qxf3 g6 9.Qb3 Bg7 10.Qxb7 0-0 11.Bd3 Nd7 12.Qa6 Rb8 13.c3 Nc5 14.Qc4 Nxd3+ 15.Qxd3 Qd7 16.0-0 e6 17.Rb1 exd5 18.exd5 Qb5 19.Qxb5 Rxb5 20.c4 Ra5 21.a3 Rb8 22.b4 Ra4 23.Re1 a5 24.Re7 axb4 25.axb4 Raxb4
35/55+ 02:04 857 814 689 6 883 167 +0,73 5.Nxe5
35/55+ 02:04 857 819 132 6 883 202 +0,82 5.Nxe5
35/55+ 02:04 857 945 954 6 883 170 +0,96 5.Nxe5
35/55 02:04 858 439 590 6 883 817 +0,90 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8R+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Nc3 b4 13.Nb5 d5 14.e5 d4 15.Re1 Rd5 16.a4 bxa3 17.Nxa3 Bc5 18.Bd2 d3 19.Nb5 Ne7 20.Nc3 dxc2+ 21.Kxc2 Rd7 22.Ne4 Rc8 23.Kb1 h6 24.Rc1 b6 25.b4 Bd4 26.Nd6+ Rxd6 27.exd6 Rxc1+ 28.Bxc1 Bxa1 29.Kxa1 Nf5 30.d7 Ke7
36/58+ 02:05 868 426 941 6 892 933 +0,99 5.Nxe5
36/63+ 02:07 878 611 213 6 899 185 +1,08 5.Nxe5
36/63 02:08 883 662 082 6 902 747 +1,10 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Nc3 b4 13.Nb5 d5 14.e5 Bc5 15.Bd2 Ne7 16.a3 Ra8 17.a4 Rhd8 18.Ke2 Rac8 19.Rhc1 h5 20.h3 Nf5 21.b3 g6 22.Bg5 Rd7 23.f3 Ra8 24.f4 Rc8 25.Kd2 Rc6
37/56- 02:09 897 720 849 6 912 723 +1,01 5.Nxe5 Bxd1
37/63- 02:11 911 602 865 6 918 346 +0,92 5.Nxe5 Bxd1
37/64+ 02:15 939 072 831 6 918 733 +1,01 5.Nxe5
37/64+ 02:19 968 096 452 6 942 048 +1,20 5.Nxe5
37/64 02:24 1 014 850 129 6 999 690 +1,14 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Bd2 Nf6 13.Re1 d5 14.e5 Ne4 15.f3 Nxd2 16.Kxd2 b4 17.a3 Ra8 18.c3 bxc3+ 19.Kxc3 Be7 20.Nd2 Rhd8 21.Kd3 Rac8 22.Rac1 Bc5 23.g3 g6 24.f4 Bb6 25.Rxc8 Rxc8
38/63+ 02:28 1 036 793 721 7 003 422 +1,23 5.Nxe5
38/63- 02:30 1 053 660 538 7 005 721 +1,05 5.Nxe5 Bxd1
38/63+ 02:36 1 098 324 337 7 039 367 +1,18 5.Nxe5
38/74 02:45 1 172 591 612 7 091 187 +1,20 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 d5 12.e5 e6 13.Nc3 b4 14.Nb5 h5 15.Re1 Nh6 16.Bg5 Rd7 17.Bxh6 Rxh6 18.f3 Bc5 19.Kd2 Rh8 20.Kd3 b6 21.a3 bxa3 22.Nxa3 b5 23.Nxb5 Rb8 24.Nd6+ Kg6 25.Reb1 Bxd6 26.exd6 Rxd6 27.Ra4 Rc6 28.c3 Rcc8 29.f4 Kf6
39/61+ 02:54 1 242 972 934 7 136 714 +1,30 5.Nxe5
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Master Om
- Posts: 450
- Joined: Wed Nov 24, 2010 10:57 am
- Location: INDIA
Post
by Master Om »
Vinvin wrote: ↑Thu Jul 09, 2020 12:23 pm
Idea from KC's video :
After : 1. e4 Nc6 2. Nf3 d6 3. d4 Bg4 4. d5 Ne5
[d]r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - 1 5
Here 5. Nxe5! is strong.
2 runs with Stockfish_2020_07_03_x64_modern : 24 sec and 2m4s
Code: Select all
24 seconds to 2 minutes on my old computer for Stockfish to play 4...Nxe5
Stockfish_2020_07_03_x64_modern:
...
27/46+ 00:23 162 293 870 6 794 234 +0,64 5.Nc3
27/46+ 00:24 167 478 987 6 820 843 +0,91 5.Nxe5
27/46 00:24 167 915 849 6 822 796 +0,91 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.a3 Nf6 13.Nc3 d5 14.Nxb5 Nxe4 15.Ke2 Bc5 16.Be3 e5 17.Bxc5 Nxc5 18.a4 d4 19.Rhd1 Ne6 20.f3 Rd5 21.Kf2 Ra8 22.c3 d3
28/53+ 00:25 171 199 606 6 836 771 +1,00 5.Nxe5
28/53- 00:25 174 436 368 6 845 742 +0,82 5.Nxe5 Bxd1
28/53+ 00:25 175 733 717 6 849 347 +0,95 5.Nxe5
28/53 00:25 176 272 246 6 852 443 +0,90 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 Nf6 12.Re1 e5 13.Nc3 d5 14.Nxb5 Nxe4 15.f3 Nd6 16.a4 Nxb5 17.axb5 Bd6 18.Ra7 Rd7 19.Be3 d4 20.Bf2 Rc8 21.Bg3 Rc5 22.b6 Rb5 23.Ra8 Ke6 24.Kc1 Rxb6 25.Re8+ Re7 26.Rxe7+ Kxe7 27.Bxe5 Bxe5 28.Rxe5+ Kf6
29/50+ 00:26 179 996 503 6 865 640 +0,99 5.Nxe5
2nd try :
Code: Select all
Stockfish_2020_07_03_x64_modern:
...
34/54 01:45 725 536 888 6 876 670 +0,64 5.Nbd2 Nf6 6.h3 Bxf3 7.Nxf3 Nxf3+ 8.Qxf3 g6 9.Qb3 Bg7 10.Qxb7 0-0 11.Bd3 Nd7 12.Qa6 Rb8 13.c3 Nc5 14.Qc4 Nxd3+ 15.Qxd3 Qd7 16.0-0 e6 17.Rb1 exd5 18.exd5 Qb5 19.Qxb5 Rxb5 20.c4 Ra5 21.a3 Rb8 22.b4 Ra4 23.Re1 a5 24.Re7 axb4 25.axb4 Raxb4
35/55+ 02:04 857 814 689 6 883 167 +0,73 5.Nxe5
35/55+ 02:04 857 819 132 6 883 202 +0,82 5.Nxe5
35/55+ 02:04 857 945 954 6 883 170 +0,96 5.Nxe5
35/55 02:04 858 439 590 6 883 817 +0,90 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8R+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Nc3 b4 13.Nb5 d5 14.e5 d4 15.Re1 Rd5 16.a4 bxa3 17.Nxa3 Bc5 18.Bd2 d3 19.Nb5 Ne7 20.Nc3 dxc2+ 21.Kxc2 Rd7 22.Ne4 Rc8 23.Kb1 h6 24.Rc1 b6 25.b4 Bd4 26.Nd6+ Rxd6 27.exd6 Rxc1+ 28.Bxc1 Bxa1 29.Kxa1 Nf5 30.d7 Ke7
36/58+ 02:05 868 426 941 6 892 933 +0,99 5.Nxe5
36/63+ 02:07 878 611 213 6 899 185 +1,08 5.Nxe5
36/63 02:08 883 662 082 6 902 747 +1,10 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Nc3 b4 13.Nb5 d5 14.e5 Bc5 15.Bd2 Ne7 16.a3 Ra8 17.a4 Rhd8 18.Ke2 Rac8 19.Rhc1 h5 20.h3 Nf5 21.b3 g6 22.Bg5 Rd7 23.f3 Ra8 24.f4 Rc8 25.Kd2 Rc6
37/56- 02:09 897 720 849 6 912 723 +1,01 5.Nxe5 Bxd1
37/63- 02:11 911 602 865 6 918 346 +0,92 5.Nxe5 Bxd1
37/64+ 02:15 939 072 831 6 918 733 +1,01 5.Nxe5
37/64+ 02:19 968 096 452 6 942 048 +1,20 5.Nxe5
37/64 02:24 1 014 850 129 6 999 690 +1,14 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 e6 12.Bd2 Nf6 13.Re1 d5 14.e5 Ne4 15.f3 Nxd2 16.Kxd2 b4 17.a3 Ra8 18.c3 bxc3+ 19.Kxc3 Be7 20.Nd2 Rhd8 21.Kd3 Rac8 22.Rac1 Bc5 23.g3 g6 24.f4 Bb6 25.Rxc8 Rxc8
38/63+ 02:28 1 036 793 721 7 003 422 +1,23 5.Nxe5
38/63- 02:30 1 053 660 538 7 005 721 +1,05 5.Nxe5 Bxd1
38/63+ 02:36 1 098 324 337 7 039 367 +1,18 5.Nxe5
38/74 02:45 1 172 591 612 7 091 187 +1,20 5.Nxe5 Bxd1 6.Bb5+ c6 7.dxc6 a6 8.c7+ axb5 9.cxd8Q+ Rxd8 10.Nxf7 Kxf7 11.Kxd1 d5 12.e5 e6 13.Nc3 b4 14.Nb5 h5 15.Re1 Nh6 16.Bg5 Rd7 17.Bxh6 Rxh6 18.f3 Bc5 19.Kd2 Rh8 20.Kd3 b6 21.a3 bxa3 22.Nxa3 b5 23.Nxb5 Rb8 24.Nd6+ Kg6 25.Reb1 Bxd6 26.exd6 Rxd6 27.Ra4 Rc6 28.c3 Rcc8 29.f4 Kf6
39/61+ 02:54 1 242 972 934 7 136 714 +1,30 5.Nxe5
///Here 5. Nxe5! is strong.///
This is known some 10-15 yrs back. I have played this myself in OTB.
Always Expect the Unexpected
