how many progams play 9. ... dxe4 in this position...

[Dan]

[Event ""]
[Site ""]
[Date "2008.5.11"]
[Round ""]
[White "Chessmaster 10th Ed."]
[Black "CMX_Endgame"]
[TimeControl "12m+4s"]
[Result "0-1"]
[ECO "C07 "]

No opening book

Celeron 1.7 gHz

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5 a6 6.Bxc6+ bxc6 7.dxc5 Bxc5 8.Nb3 Be7 9.O-O
[d]r1bqk1nr/4bppp/p1p1p3/3p4/4P3/1N3N2/PPP2PPP/R1BQ1RK1 b 9
9. ...dxe4!
10.Qxd8+ Bxd8 11.Ne5 Bc7 12.Bf4
[d]r1b1k1nr/2b2ppp/p1p1p3/4N3/4pB2/1N6/PPP2PPP/R4RK1 b 12
12. ...g5!
13.Bg3 f5 14.f4 Nf6 15.Nxc6 Nh5 16.Be1 Bd7 17.Bc3 Rg8 18.Be5 Bb6+ 19.Ncd4 Nxf4 20.Kh1 Rc8 21.a4 a5 22.g4 Rc4 23.gxf5 exf5
24.Rfd1 Rf8 25.Bg7 Rf7 26.Be5 h6 27.Bxf4 gxf4 28.c3 Rxa4 29.Rxa4 Bxa4 30.Ra1 Bxb3 31.Nxb3 f3 32.Nd4 Bxd4 33.cxd4 e3 34.h3 Rg7
35.Rg1 e2 36.Rxg7 e1=Q+ 37.Rg1 f2 38.Rxe1+ fxe1=Q+ 39.Kg2 Qe2+ 40.Kg3 Qe3+ 41.Kg2 f4 42.Kh1 f3 43.h4 Qe2 44.b3 Qg2# 0-1

[smrf]

Current internal beta of SMIRF MS-147d-0:

Code: Select all

07:20.2 (14.01=) -0.229 1...dxe4 (h5) 2.Qxd8+ Bxd8 3.Ng5 Bxg5 4.Bxg5 h6 5.Bf4 Nf6 6.Nc5 Ra7 7.Be5 Rg8 8.Bxf6 gxf6
03:27.6 (13.01=) -0.262 1...dxe4 (h5) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 f6 5.Nf7 Bxf4 6.Nxh8 Nh6 7.Rad1 Ng4 8.f3 exf3 9.Rxf3
02:35.6 (12.03=) -0.262 1...dxe4 (h5) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 f6 5.Nf7 Bxf4 6.Nxh8 Nh6 7.Rad1 Ng4 8.f3
01:17.2 (12.01=) -0.262 1...dxe4 (Bd7) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 f6 5.Nf7 Bxf4 6.Nxh8 Nh6 7.Rad1 Ng4 8.f3
00:43.4 (11.10=) -0.135 1...dxe4 (Bd7) 2.Qxd8+ Bxd8 3.Ne5 Ne7 4.Re1 f6 5.Nc4 Bc7 6.Rxe4 Nd5 7.Be3
00:35.4 (11.06=) -0.135 1...dxe4 (h5) 2.Qxd8+ Bxd8 3.Ne5 Ne7 4.Re1 f6 5.Nc4 Bc7 6.Rxe4 Nd5 7.Be3
00:15.8 (11.01=) -0.135 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Ne7 4.Re1 f6 5.Nc4 Bc7 6.Rxe4 Nd5 7.Be3
00:07.9 (10.02=) +0.047 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 Bxe5 5.Bxe5 Nf6 6.Rad1 Bd7 7.Bxf6 gxf6 8.Rxd7 Kxd7 9.Nc5+
00:07.2 (10.02+) -0.471 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 Bxe5 5.Bxe5 Nf6 6.Rad1 Bd7 7.Bxf6 gxf6 8.Rxd7 Kxd7 9.Nc5+
00:06.6 (10.01=) -0.473 1...Nf6 (dxe4) 2.e5 Ne4 3.Nfd2 Nc5 4.Nxc5 Bxc5 5.Nb3 Be7 6.Bf4 g5
00:04.0 (09.02=) -0.355 1...Nf6 (dxe4) 2.e5 Ne4 3.Nfd2 Nc5 4.Qf3 Qb6 5.a3 Bg5
00:03.8 (09.02+) -0.359 1...Nf6 (dxe4) 2.e5 Ne4 3.Nfd2 Nc5 4.Qf3 Bd7 5.Nxc5 Bxc5 6.Qxd5 cxd5 7.g4
00:03.3 (09.01=) -0.361 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Bf4 Bxe5 5.Bxe5 Nf6 6.Rad1 Bd7 7.Bxf6 gxf6 8.Nc5 h5
00:01.8 (08.01=) -0.318 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Nxc6 Bd7 5.Nbd4 Bxc6 6.Nxc6 Nf6 7.Bg5
00:01.2 (07.02=) -0.301 1...dxe4 (Nf6) 2.Qxd8+ Bxd8 3.Ne5 Bc7 4.Nxc6 Nf6 5.Be3
00:01.0 (07.01=) -0.381 1...Nf6 (dxe4) 2.exd5 exd5 3.Ne5 Qc7 4.Bf4 Ng4 5.Nc5
00:00.5 (06.02=) -0.424 1...Nf6 (dxe4) 2.exd5 cxd5 3.Ne5 Ne4 4.Be3 Nxf2 5.Kxf2 Bh4+ 6.g3 Bxg3+
00:00.5 (06.00-) -0.352 1...dxe4 (Nf6) 2.Qxd8+ Kxd8 3.Ne5 f6 4.Nxc6+ Ke8
00:00.1 (05.01=) -0.141 1...dxe4 (Nf6) 2.Ne5 Qd5 3.Bf4 Nh6 4.Qxd5 cxd5 5.Nxf7 Kxf7 6.Bxh6 gxh6 7.Nc5
00:00.0 (03.01=) -0.322 1...dxe4 (Nf6) 2.Ne5 Qd5 3.Bf4 g5
00:00.0 (02.01=) -0.121 1...dxe4 (=/=) 2.Qxd8+ Kxd8 3.Rd1+ Bd7 4.Rd6

[JVMerlino]

12.Nc4 Nf6 appears to be better than 12.Bg4. After this, 13.Bd2, 13.Be3 or 13.Re1 all seem viable, and Black has only a slight advantage at best. Certainly not losing.

jm

[cyberfish]

from Brainless

Code: Select all

0       -21     0       7       d5e4
1       -21     1       35      d5e4
2       -32     1       641     d5e4 f3e5
3       -25     1       581     d5e4 d1d8 e7d8 f3e5
4       -37     3       3600    d5e4 f3e5 c8b7 c1e3
5       -30     6       14264   d5e4 d1d8 e7d8 f3e5 g8e7 c1e3
6       -30     15      40018   d5e4 d1d8 e7d8 f3e5 g8e7 c1e3
7       -27     56      209877  d5e4 d1d8 e7d8 f3e5 g8e7 f1e1 f7f5
8       -36     221     903722  d5e4 d1d8 e7d8 f3g5 d8g5 c1g5 g8e7 a1e1
9       -30     489     1583837 d5e4 d1d8 e7d8 f3d2 f7f5
10      -27     1103    3630631 d5e4
move d5e4