Nxe5!!
Moderator: Ras
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Terry McCracken
- Posts: 16465
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- Location: Canada
Re: Nxe5!!
Much nicer than Legall's Mate.Jack Lad wrote:[d] r2qkb1r/ppp2ppp/1nn5/4p2b/8/1BNP1N1P/PPP2PP1/R1BQK2R w KQkq - 1 9
There's a bit of calculation in this opening position. Do you have the complete game?
Terry McCracken
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Jack Lad
- Posts: 8557
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Re: Nxe5!!
http://www.chessgames.com/perl/chessgame?gid=1405197Terry McCracken wrote:Much nicer than Legall's Mate.Jack Lad wrote:[d] r2qkb1r/ppp2ppp/1nn5/4p2b/8/1BNP1N1P/PPP2PP1/R1BQK2R w KQkq - 1 9
There's a bit of calculation in this opening position. Do you have the complete game?
It was composed.
Now cracks a noble heart.—Good night, sweet Princess, And flights of angels sing thee to thy rest!
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Terry McCracken
- Posts: 16465
- Joined: Wed Aug 01, 2007 4:16 am
- Location: Canada
Re: Nxe5!!
It may have been but still it's worth a look. Thanks for linking the game.Jack Lad wrote:http://www.chessgames.com/perl/chessgame?gid=1405197Terry McCracken wrote:Much nicer than Legall's Mate.Jack Lad wrote:[d] r2qkb1r/ppp2ppp/1nn5/4p2b/8/1BNP1N1P/PPP2PP1/R1BQK2R w KQkq - 1 9
There's a bit of calculation in this opening position. Do you have the complete game?
It was composed.
Terry McCracken
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Eelco de Groot
- Posts: 4722
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- Full name: Eelco de Groot
Re: Nxe5!!
This seems a good testposition Jack, not too easy, thanks!Jack Lad wrote:[d] r2qkb1r/ppp2ppp/1nn5/4p2b/8/1BNP1N1P/PPP2PP1/R1BQK2R w KQkq - 1 9
r2qkb1r/ppp2ppp/1nn5/4p2b/8/1BNP1N1P/PPP2PP1/R1BQK2R w KQkq -
Engine: Rainbow Serpent 1.8(s)dc Build 003 (Athlon 2009 MHz, 256 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski
1.00 0:00 +1.37 9.O-O (1.145) 4
2.00 0:00 +1.17 9.O-O Bc5 (1.392) 5
3.00 0:00 +0.88 9.O-O Nd4 10.g4 (2.445) 9
3.00 0:00 +1.13 9.g4 Bg6 10.Bg5 (2.593) 10
4.00 0:00 +0.80 9.g4 Bg6 10.O-O Bc5 (3.043) 12
4.00 0:00 +0.88 9.O-O Be7 10.g4 Bg6 (3.654) 14
5.00 0:00 +1.09 9.O-O Be7 10.g4 Bg6 11.Be3 (4.081) 16
6.00 0:00 +0.96 9.O-O Be7 10.g4 Bg6 11.Re1 Qd6 (5.277) 19
7.00 0:00 +0.72-- 9.O-O Be7 (12.413) 44
7.00 0:00 +1.13 9.O-O Be7 10.g4 Bg6 11.Re1 O-O
12.Nxe5 Nxe5 13.Rxe5 Bf6 (17.149) 60
8.00 0:00 +0.88-- 9.O-O Be7 (21.137) 71
8.00 0:00 +1.13 9.O-O Bb4 10.g4 Bg6 11.Bg5 f6 12.Bh4 Bf7 (32.975) 105
9.00 0:00 +1.05-- 9.O-O Bb4 (38.854) 118
9.00 0:00 +0.96-- 9.O-O Bb4 (46.276) 134
9.00 0:00 +0.80-- 9.O-O Bb4 (54.696) 151
9.00 0:00 +0.80 9.O-O Bb4 10.g4 Bg6 11.Qe2 f6 12.a3 Bxc3
13.bxc3 Bf7 14.Be3 Bxb3 15.cxb3 (62.163) 165
10.00 0:00 +0.48-- 9.O-O Bb4 (78.414) 185
10.00 0:00 +0.40 9.O-O Bb4 10.g4 Bg6 11.Qe2 f6 12.a3 Bxc3
13.bxc3 Bf7 14.d4 Bd5 15.dxe5 O-O (129.131) 250
11.00 0:00 +0.48 9.O-O Bb4 10.g4 Bg6 11.Qe2 f6 12.Ne4 Bf7
13.a3 Be7 14.Bxf7+ Kxf7 15.Be3 Qe8
16.Nc5 (196.577) 299
12.00 0:01 +0.44 9.O-O Bb4 10.g4 Bg6 11.Qe2 f6 12.Ne4 Bf7
13.Bxf7+ Kxf7 14.c3 Bd6 15.Be3 Re8
16.Nc5 Qc8 17.Rfe1 (404.390) 380
13.01 0:01 +0.52++ 9.O-O Bb4 (584.695) 406
13.01 0:01 +0.56 9.O-O Bb4 10.g4 Bg6 11.Qe2 f6 12.Ne4 Bf7
13.Bxf7+ Kxf7 14.c3 Bd6 15.Qc2 Be7
16.Be3 g6 (598.092) 411
14.01 0:02 +0.40-- 9.O-O Bd6 (1.102.020) 446
14.01 0:04 +0.24-- 9.O-O Bd6 (1.874.625) 466
14.01 0:04 +0.36 9.O-O Bd6 10.g4 Bg6 11.Bg5 f6 12.Be3 Bf7
13.Bxf7+ Kxf7 14.Ne4 Qd7 15.Nh4 Rhd8
16.Nf5 Kg8 17.Bh6 Bf8 18.Qc1 (2.292.721) 473
15.01 0:06 +0.24 9.O-O Bd6 10.g4 Bg6 11.Bg5 f6 12.Bd2 Bf7
13.Bxf7+ Kxf7 14.Ne4 Rf8 15.g5 Kg8
16.gxf6 gxf6 17.Kh2 Ne7 18.Rg1+ Ng6 (3.324.346) 480
16.01 0:10 +0.24 9.O-O Bd6 10.g4 Bg6 11.Re1 O-O
12.Bg5 Qc8 13.d4 exd4 14.Nxd4 Na5
15.Ndb5 Bb4 16.Be7 Nxb3 17.cxb3 Bxe7
18.Rxe7 Rd8 19.Qf3 (5.238.035) 485
17.01 0:14 +0.32++ 9.O-O Bd6 (6.922.948) 489
17.01 0:14 +0.40++ 9.O-O Bd6 (7.302.258) 489
17.01 0:16 +0.28 9.O-O Bd6 10.Ne4 O-O 11.Bg5 Be7
12.Bxe7 Qxe7 13.Ng3 Bg6 14.Re1 Qc5
15.Qe2 Rae8 16.Ne4 Qa5 17.Qd2 Qxd2
18.Nexd2 Bf5 (7.985.866) 491
18.01 0:21 +0.20-- 9.O-O Bd6 (10.432.889) 495
18.01 0:32 +0.20 9.O-O Bd6 10.Be3 O-O 11.Re1 Re8
12.Nb5 Na5 13.Qe2 Qd7 14.Nxd6 cxd6
15.Bxb6 axb6 16.Qe4 Bg6 17.Qd5 Qc6
18.Ng5 Nxb3 19.Qxb3 (16.277.471) 500
19.01 0:42 +0.16 9.O-O Bd6 10.g4 Bg6 11.a4 a5 12.Bg5 Qd7
13.Nb5 Be7 14.Bxe7 Qxe7 15.Qe2 O-O-O
16.Rfe1 f6 17.d4 Rhe8 18.dxe5 Nxe5
19.Red1 (21.106.601) 502
19.09 0:47 +0.32++ 9.Nxe5 Bxd1 (24.099.584) 502
19.09 0:48 +0.44++ 9.Nxe5 Bxd1 (24.210.194) 503
19.09 0:48 +0.68++ 9.Nxe5 Bxd1 (24.367.411) 503
19.09 0:48 +1.17++ 9.Nxe5 Bxd1 (24.608.271) 504
19.09 0:51 +1.53 9.Nxe5 Bxd1 10.Bxf7+ Ke7 11.Bg5+ Kd6
12.Ne4+ Kxe5 13.f4+ Kd4 14.Rxd1 Nb4
15.Bxd8 Rxd8 16.Kd2 Nxd3 17.cxd3 Rd7
18.Be6 Bb4+ 19.Ke2 Re7 20.Bb3 Rf8
21.g3 Bd6 22.h4 (25.989.747) 508
20.01 2:18 +1.69 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 Qd7
12.a3 O-O-O 13.O-O Bd6 14.Re1 Rhe8
15.Nb5 Kb8 16.d4 a6 17.Nxd6 Qxd6
18.c3 f6 19.Qe2 Bg6 (71.681.549) 518
21.01 2:38 +1.65 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 Qd7
12.O-O Bd6 13.Re1 O-O 14.g4 Bg6
15.Nh4 Na5 16.Qf3 Rae8 17.Nxg6 hxg6
18.Kg2 c6 19.Ne4 Nxb3 20.axb3 Bb4
21.c3 f5 22.Nc5 (81.681.453) 515
22.01 2:59 +1.77++ 9.Nxe5 Qh4 (92.078.683) 514
22.01 3:11 +1.53-- 9.Nxe5 Qh4 (98.278.259) 512
22.01 3:54 +1.45 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.a4 Na5 14.Ba2 Qf6
15.Qe2 Kb8 16.g4 Bg6 17.Ne4 Bxe4
18.dxe4 Qxb2 19.Bxf7 Qf6 20.Ba2 Nac4
21.Bxc4 (120.914.229) 515
23.01 4:05 +1.69++ 9.Nxe5 Qh4 (126.121.259) 514
23.01 4:22 +1.61 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.a4 Na5 14.Ba2 Qf6
15.Ne4 Qxb2 16.Ng3 Bg6 17.Nh4 Bd6
18.Nxg6 fxg6 19.Qd2 Nc6 20.Rfb1 Qe5
21.f4 Qa5 22.Qxa5 (134.126.585) 511
24.01 4:51 +1.61 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.Ne4 Bg6 14.Re1 Bxe4
15.Bxb6 axb6 16.Rxe4 Qf6 17.d4 Kb8
18.c3 Bd6 19.Qe2 h5 20.Re1 g5 (149.369.608) 511
25.01 5:00 +1.53-- 9.Nxe5 Qh4 (153.568.738) 511
25.01 5:13 +1.69++ 9.Nxe5 Qh4 (160.438.228) 511
25.01 5:28 +1.61 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.Ne4 Bg6 14.Re1 Bxe4
15.Bxb6 axb6 16.Rxe4 Qf6 17.d4 Kb8
18.c3 g5 19.Nd2 Bd6 20.Qh5 Bf4
21.Nf3 Qf5 22.Rae1 (167.760.690) 511
26.01 5:41 +1.69++ 9.Nxe5 Qh4 (174.248.514) 510
26.01 6:12 +1.53-- 9.Nxe5 Qh4 (189.848.165) 510
26.01 6:45 +1.45-- 9.Nxe5 Qh4 (207.071.681) 511
26.01 7:02 +1.53 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.Ne4 Bg6 14.Re1 Bxe4
15.Bxb6 axb6 16.Rxe4 Qf6 17.d4 g5
18.c3 h5 19.Ne1 Qg6 20.Qf3 f6 21.Nc2 Bd6
22.Ne3 (215.820.766) 510
27.01 8:21 +1.45-- 9.Nxe5 Qh4 (255.971.272) 510
27.01 11:46 +1.37-- 9.Nxe5 Qh4 (365.986.232) 517
27.01 13:12 +1.41 9.Nxe5 Qh4 10.Nf3 Qe7+ 11.Be3 h6
12.O-O O-O-O 13.Ne4 Nd5 14.Bxd5 Rxd5
15.Re1 a6 16.a3 Qd7 17.b4 Be7 18.d4 Bxf3
19.Qxf3 Nxd4 20.Bxd4 (409.993.462) 517
28.01 22:41 +1.45 9.Nxe5 Qh4 10.g3 Bxd1 11.gxh4 Nxe5
12.Kxd1 O-O-O 13.Rg1 Kb8 14.Be3 Nbc4
15.Ke2 Nxe3 16.fxe3 f5 17.d4 Nc6
18.Nd5 g6 19.h5 Rd6 20.Raf1 Bh6
21.Nf4 Ne7 22.Bf7 (706.581.834) 519
29.01 30:51 +1.49 9.Nxe5 Qh4 10.g3 Bxd1 11.gxh4 Nxe5
12.Kxd1 O-O-O 13.Rg1 Kb8 14.Be3 f6
15.Ke2 Nc6 16.Rae1 Nd4+ 17.Bxd4 Rxd4
18.Kd1 Rd8 19.h5 Nd7 20.f4 c6 21.Ke2 Nc5
22.Kd2 (979.034.162) 528
30.01 38:41 +1.41-- 9.Nxe5 Qh4 (1.231.696.474) 530
30.01 40:50 +1.49 9.Nxe5 Qh4 10.g3 Bxd1 11.gxh4 Nxe5
12.Kxd1 O-O-O 13.Rg1 f6 14.h5 Nf3
15.Rg3 Nd4 16.Be3 a6 17.Kd2 Nxb3+
18.axb3 Nd5 19.Re1 h6 20.Rg4 Nxc3
21.bxc3 Rd5 22.Rh4 (1.297.483.331) 529
best move: Nf3xe5 time: 42:31.032 min n/s: 528.928 nodes: 1.349.313.346
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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rightrook
- Posts: 1452
- Joined: Wed Mar 08, 2006 8:45 pm
Re: Nxe5!!
Thanks....Good test move..!
Hiarcs 11.2 found it in 28 sec.

Hiarcs 11.2 found it in 28 sec.
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Jack Lad
- Posts: 8557
- Joined: Wed Mar 08, 2006 10:01 pm
- Location: UK
Re: Nxe5!!
[d] rn3rk1/pbppq1pp/1p2pb2/4N2Q/3PN3/3B4/PPP2PPP/R3K2R w KQ - 6 11
This is one is easy for an engine but a nice one for the brain.
Ed Lasker found the winning move.
http://www.chessgames.com/perl/chessgame?gid=1259009
http://en.wikipedia.org/wiki/Edward_Las ... able_games
http://www.chesshistory.com/winter/extr ... homas.html
This is one is easy for an engine but a nice one for the brain.
Ed Lasker found the winning move.
http://www.chessgames.com/perl/chessgame?gid=1259009
http://en.wikipedia.org/wiki/Edward_Las ... able_games
http://www.chesshistory.com/winter/extr ... homas.html
Now cracks a noble heart.—Good night, sweet Princess, And flights of angels sing thee to thy rest!
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tano-urayoan
- Posts: 638
- Joined: Thu Aug 30, 2007 8:23 pm
- Location: San Juan, Puerto Rico
Re: Nxe5!!
This is a classic in tactical manuals Qxh7Jack Lad wrote:[d] rn3rk1/pbppq1pp/1p2pb2/4N2Q/3PN3/3B4/PPP2PPP/R3K2R w KQ - 6 11
This is one is easy for an engine but a nice one for the brain.![]()
Ed Lasker found the winning move.
http://www.chessgames.com/perl/chessgame?gid=1259009
http://en.wikipedia.org/wiki/Edward_Las ... able_games
http://www.chesshistory.com/winter/extr ... homas.html
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Terry McCracken
- Posts: 16465
- Joined: Wed Aug 01, 2007 4:16 am
- Location: Canada
Re: Nxe5!!
I remember solving this mate around '83 and I believe there's a faster answer then in the text.Jack Lad wrote:[d] rn3rk1/pbppq1pp/1p2pb2/4N2Q/3PN3/3B4/PPP2PPP/R3K2R w KQ - 6 11
This is one is easy for an engine but a nice one for the brain.![]()
Ed Lasker found the winning move.
http://www.chessgames.com/perl/chessgame?gid=1259009
http://en.wikipedia.org/wiki/Edward_Las ... able_games
http://www.chesshistory.com/winter/extr ... homas.html
Terry McCracken
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Terry McCracken
- Posts: 16465
- Joined: Wed Aug 01, 2007 4:16 am
- Location: Canada