An old test position : Vescovi - Gschwendtner 1994

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Vinvin
Posts: 4652
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

An old test position : Vescovi - Gschwendtner 1994

Post by Vinvin » Mon Dec 12, 2011 8:55 am

A couple of years ago, a lot of top engines on fast comp still have troubles to find this one. What's its status now ?

[d]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

From : http://home.scarlet.be/vincentlejeune/hardsets.html

[Event "hard CCC 2008"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Pos"]
[Black "Attack the castled king"]
[Result "1-0"]
[Annotator "Vinvin"]
[SetUp "1"]
[FEN "1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1"]

{Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994 (from Aemis Test Suite No.30)} 1. Rxg7+ $1
Kxg7 2. h6+ Kf8 3. Qf6 {Toga II 1.2 Beta2a: 1)} Bd7 ({Toga II 1.2 Beta2a: 2)}
3... Bd7 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8 9. Nd4
axb2 10. Nxe6 Rd6 11. Nc7+ Kd7 12. Qg7 Qe7 13. Nxb5 Rd2 14. Qxh7 {
[%eval 543,14]}) 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8
9. Nd4 Rd7 10. Rg7 Qh8 11. Qg5 Rxd4 12. Rg8+ Qxg8 13. Qxg8+ Ke7 14. Qg5+ Kd6
15. Qd8+ Kc5 16. Qc7+ Kd5 17. Qxf7 axb2 18. Kxb2 {[%eval 548,15]} 1-0

A Distel
Posts: 3366
Joined: Thu Dec 30, 2010 12:33 pm

Re: An old test position : Vescovi - Gschwendtner 1994

Post by A Distel » Mon Dec 12, 2011 10:25 am

[D]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by Houdini 2.0b Pro x64:

1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Rbc8 8.cxd8Q+ Rxd8 9.Qg7 axb2 10.Qxh7 Ke7 11.Nd4 Qh8 12.Qg7 Qxg7 13.hxg7 Rg8 14.Nxb5 Kf6 15.Nd6 Ke7 16.Nc8+ Kf6 17.Nb6 Ke7 18.Kxb2 f6 19.a4 Kf7 20.a5 Rxg7 21.Rxg7+ Kxg7 22.a6
+- (9.02) Depth: 19/69 00:00:48 410mN
(12.12.2011)

zullil
Posts: 6207
Joined: Mon Jan 08, 2007 11:31 pm
Location: PA USA
Full name: Louis Zulli

Re: An old test position : Vescovi - Gschwendtner 1994

Post by zullil » Mon Dec 12, 2011 10:34 am

Vinvin wrote:A couple of years ago, a lot of top engines on fast comp still have troubles to find this one. What's its status now ?

[d]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Code: Select all

Critter Chess v1.2.1 64-bit SSE4
By Richard Vida, Slovakia

GTB Init OK

Hash table:  67108864 entries of 16 bytes = 1024 MB total
Eval cache:     32768 entries of  8 bytes =  256 KB total
Pawn hash :     65536 entries of 32 bytes =    2 MB total

8 cpu(s) detected

Opening book: "book.cbk" - 53436 entries [native]

setoption name Hash value 2048
Hash table: 134217728 entries of 16 bytes = 2048 MB total
setboard 1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1
go infinite
 2/ 2  00:00       467  467000  +0.49 Qg5 Qf8
 3/ 4  00:00      1069 1069000  +0.66 Qg5 g6 hxg6 hxg6 exd5 axb2 dxe6
 4/ 6  00:00      2195 1097500  +0.66 Qg5 g6 hxg6 hxg6 exd5 axb2 dxe6
 5/10  00:00      5292 1058400  +0.28 Qg5 Qf8 h6 g6 exd5 axb2 dxe6 Rxd1+ Rxd1 fxe6
 5/10  00:00      6043 1208600  +0.47 Qf6 Qf8 h6 g6 exd5 Rxd5 Rxd5 exd5
 6/10  00:00     10667 1185222  +0.46 Qf6 Qf8 exd5 exd5 bxa3 Kh8 Qe5
 7/12  00:00     14013 1273909  +0.28 Qf6 Qf8 exd5 exd5 Rde1 axb2 Kxb2 Ra8 Re7 Kh8
 7/14  00:00     18974 1264933  +0.46 Qg5 Qf8 exd5 axb2 h6 g6 dxe6 Rxd1+ Rxd1 fxe6 Qe5
 8/16- 00:00     34578 1383120  +0.38 Qg5 Qf8 exd5 axb2 h6 g6 dxe6 Rxd1+ Rxd1 fxe6 Qe5
 8/16- 00:00     41512 1431448  +0.29 Qg5 Qf8 exd5 axb2 h6 g6 dxe6 Rxd1+ Rxd1 fxe6 Qe5
 8/16  00:00     44935 1449516  +0.21 Qg5 Qf8 exd5 exd5 Rxd5 f6 Qf5 axb2 Nc5 Rxd5 Qxd5+ Bf7
 8/16  00:00     46723 1460093  +0.26 Qf6 Qf8 exd5 exd5 Rde1 axb2 Kxb2 b4 Re7 Kh8
 9/18+ 00:00     67786 1412208  +0.35 Qf6 Qf8 exd5 exd5 Rde1 axb2 Kxb2 b4 Re7 Kh8 Qe5 Rd7
 9/18  00:00     89191 1415730  +0.30 Qg5 Qf8 exd5 exd5 Nd4 f6 Qe3 Qb4 b3 Bxh5 Ne6
10/21+ 00:00    179381 1692273  +0.38 Qg5 Qf8 exd5 exd5 Nd4 f6 Qe3 Qb4 b3 Bxh5 Ne6
10/21  00:00    192197 1700858  +0.33 Qg5 Qf8 exd5 exd5 Nd4 f6 Qe3 Bxh5 Nf5 g6 Ne7+ Kh8 Qxa3 Re8
11/23+ 00:00    428916 2331065  +0.42 Qg5 Qf8 exd5 exd5 Nd4 f6 Qe3 Bxh5 Nf5 g6 Ne7+ Kh8 Qxa3 Re8
11/26+ 00:00    659023 2689889  +0.51 Qg5 Qf8 exd5 exd5 Nd4 f6 Qe3 Bxh5 Nf5 g6 Ne7+ Kh8 Qxa3 Re8
11/26  00:00    723772 2690602  +0.47 Qg5 Qf8 exd5 exd5 Nd4 Bd7 b3 b4 Rde1 f6 Qxd5+ Qf7 Qxf7+ Kxf7 Rg2 Bh3 Rd2 Rbc8
12/34- 00:00   1716775 3245321  +0.38 Qg5 Qf8 exd5 exd5 Nd4 Bd7 b3 b4 Rde1 f6 Qxd5+ Qf7 Qxf7+ Kxf7 Rg2 Bh3 Rd2 Rbc8
12/34  00:00   1912329 3378673  +0.36 Qg5 Qf8 exd5 exd5 Nd4 f6 Qf5 Rb6 b3 Qf7 Qf4 Bd7 Qc7 Rdb8 h6 g6 Rge1 b4
13/34  00:00   2377934 3456299  +0.36 Qg5 Qf8 exd5 exd5 Nd4 f6 Qf5 Rb6 b3 Qf7 Qf4 Bd7 Qc7 Rdb8 h6 g6 Rge1 b4
14/34+ 00:00   3604964 3935550  +0.44 Qg5 Qf8 exd5 exd5 Nd4 f6 Qf5 Rb6 b3 Qf7 Qf4 Bd7 Qc7 Rdb8 h6 g6 Rge1 b4
14/34- 00:01   9390842 5191178  +0.27 Qg5 Qf8 exd5 exd5 Nd4 f6 Qf5 Rb6 b3 Qf7 Qf4 Bd7 Qc7 Rdb8 h6 g6 Rge1 b4
14/40  00:02  11646546 5250922  +0.29 Qf6 Qf8 exd5 Rxd5 Rxd5 exd5 Qe5 Rd8 Nd4 Bd7 b3 Re8 Qg5 f5 c3 Qf7 f4 Re3
15/40+ 00:02  12164259 5198401  +0.38 Qf6 Qf8 exd5 Rxd5 Rxd5 exd5 Qe5 Rd8 Nd4 Bd7 b3 Re8 Qg5 f5 c3 Qf7 f4 Re3
15/40  00:02  13223448 5317027  +0.33 Qg5 Qf8 exd5 exd5 Nd4 f6 Qf5 Bd7 Qxd5+ Kh8 b3 Bh3 Qc6 b4 h6 g6 Ne6 Bxe6 Qxe6 Re8 Qd6 Re2 Qc7
16/40  00:04  30656767 6410867  +0.25 Rd4 Qd6 Qf6 g6 hxg6 hxg6 exd5 exd5 Qxd6 Rxd6 h4 Kf8 Rh1 f6 Rhd1 Bf7 bxa3 Rc6 Kb2 Kg7
17/40+ 00:05  37416273 6666002  +0.34 Rd4 Qd6 Qf6 g6 hxg6 hxg6 exd5 exd5 Qxd6 Rxd6 h4 axb2 h5 Rf6 Rxd5 Rxf3 hxg6 fxg6 Rd2 Rc8 Nd4 Rh3 Re2 b4 Re7 Bf7
17/40+ 00:05  37962695 6627565  +0.42 Rd4 Qd6 Qf6 g6 hxg6 hxg6 exd5 exd5 Qxd6 Rxd6 h4 axb2 h5 Rf6 Rxd5 Rxf3 hxg6 fxg6 Rd2 Rc8 Nd4 Rh3 Re2 b4 Re7 Bf7
17/40  00:05  39098674 6553582  +0.35 Rd4 Qf8 exd5 Rxd5 Rxg7+ Qxg7 Rg4 Rd1+ Nc1 Rg1 Rxg7+ Rxg7 bxa3 Rg2 Nd3 Rc8 Ne1 Re2 h6 Rc4 Qg3+ Kf8 Qd6+ Kg8 Kb2 e5 Qe7 Rc8 Qf6 Kf8
18/45+ 00:08  60701480 7154818  +0.43 Rd4 Qf8 exd5 Rxd5 Rxg7+ Qxg7 Rg4 Rd1+ Nc1 Rg1 Rxg7+ Rxg7 bxa3 Rg2 Nd3 Rc8 Ne1 Re2 h6 Rc4 Qg3+ Kf8 Qd6+ Kg8 Kb2 e5 Qe7 Rc8 Qf6 Kf8 Qd6+ Kg8
18/45  00:08  62210540 7171243  +0.42 Rd4 Qf8 exd5 Rxd5 Rxg7+ Qxg7 Rg4 Rd1+ Nc1 Rg1 Rxg7+ Rxg7 bxa3 Rc8 Nd3 Rg1+ Ne1 Bc6 Qf2 Rg5 h6 Rg6 Qe3 Bd5 Kb2 Rc4 Nd3 Rg2 Nb4 Kf8
19/46+ 00:12  93741399 7667380  +0.50 Rd4 Qf8 exd5 Rxd5 Rxg7+ Qxg7 Rg4 Rd1+ Nc1 Rg1 Rxg7+ Rxg7 bxa3 Rc8 Nd3 Rg1+ Ne1 Bc6 Qf2 Rg5 h6 Rg6 Qe3 Bd5 Kb2 Rc4 Nd3 Rg2 Nb4 Kf8
19/46  00:12  97749287 7676243  +0.52 Rd4 Qf8 exd5 Rxd5 Rxg7+ Qxg7 Rg4 Rd1+ Nc1 Rg1 Rxg7+ Rxg7 bxa3 Rc8 Nb3 Rg2 Nd4 h6 Qf6 Rg1+ Kb2 Rg2 h4 Rc4 Qd8 Kg7 Qd6 Kg8 Qe5 Bd7 Kb3 Rc8
19/49+ 00:18 150124703 8152748  +0.59 Rxg7+ Kxg7 Rg1+ Kf8
19/49+ 00:18 154014350 8116270  +0.72 Rxg7+ Kxg7 Rg1+ Kf8
19/49+ 00:19 159745584 8096993  +0.91 Rxg7+ Kxg7 Rg1+ Kf8
19/49+ 00:21 171048573 8100041  +1.19 Rxg7+ Kxg7 Rg1+ Kf8
19/49+ 00:23 187512208 8131844  +1.62 Rxg7+ Kxg7 Rg1+ Kf8
19/49+ 00:25 205286210 8193749  +2.26 Rxg7+ Kxg7 Rg1+ Kf8
19/51+ 00:28 234575728 8242874  +3.21 Rxg7+ Kxg7 h6+ Kf8 Qf6 Bc6 c3 Qd6 e5 Qc7 Rg1 Ke8 Nc5
19/61+ 00:34 288360868 8454594  +4.64 Rxg7+ Kxg7 h6+ Kf8 Qf6 Bc6 c3 Qd6 e5 Qc7 Rg1 Ke8 Nc5
19/72  01:08 600777901 8720828  +6.12 Rxg7+ Kxg7 h6+ Kf8 Qf6 Bd7 exd5 Bc6 Rg1 Ke8 dxc6 Qf8 c7 Rbc8 cxd8=Q+ Rxd8 Qg7 b4 Qxh7 Ke7 Qg7 Qh8 Nd4 Qxg7 hxg7 Rg8 Nc6+ Kf6 Nb8 Ke7 Na6 f6 Nxb4 Kf7 Nc6 axb2 a4 Rxg7 Nd8+ Kg8 Rxg7+ Kxg7 Nxe6+ Kf7
?
bestmove Rxg7+ ponder Kxg7

time: 73575 nodes: 644281497 evals: 497097707 knps: 8756
phash: 85.04% evalcache: 11.42% lazy: 45.06% eg_recog: 209345
splits: 70650

noctiferus
Posts: 364
Joined: Sun Oct 04, 2009 11:27 am
Location: Italy

Re: An old test position : Vescovi - Gschwendtner 1994

Post by noctiferus » Mon Dec 12, 2011 10:56 am

Toga had some other problem, in his line:
After 17. Qxf7, didn't see 17...Rd1 mate.

Vinvin
Posts: 4652
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: An old test position : Vescovi - Gschwendtner 1994

Post by Vinvin » Mon Dec 12, 2011 12:21 pm

It's the end of the line, so, not accurate at all (probably SEE extension or something like that).
noctiferus wrote:Toga had some other problem, in his line:
After 17. Qxf7, didn't see 17...Rd1 mate.

Dan Astrachan
Posts: 134
Joined: Fri May 28, 2010 9:07 am

Re: An old test position : Vescovi - Gschwendtner 1994

Post by Dan Astrachan » Mon Dec 12, 2011 12:54 pm

Ivanhoe 46f x64

Mouv. nº1: Rxg7+ | | Evaluation: 6.61 | | Ligne proposée:
1. Rxg7+ Kxg7 2. h6+ Kf8 3. Qf6 Bd7 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Rbc8 8. cxd8=Q+ Rxd8 9. Nd4 Rd5 10. Nxe6 Rd6 11. Ng7+ Kd7 12. Qf5+ Kc7 13. Qc5+ Kb7 14. Qxb5+ Rb6 15. Qd7+ Ka6
Depth: 24 | Processing time: 1110.322 sec.
Moves processed: 4360228891 | Speed: 3926000 moves per sec.

User avatar
Master Om
Posts: 380
Joined: Wed Nov 24, 2010 9:57 am
Location: INDIA

Re: An old test position : Vescovi - Gschwendtner 1994

Post by Master Om » Tue Dec 13, 2011 3:13 pm

Sting has problems finding it


New game
[FEN]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1[/FEN]

Analysis by Sting SF JA 111210 64bit:

1.h6 g6 2.Qf6 Qf8 3.exd5 exd5 4.bxa3 Qxh6
+/= (0.40) Depth: 7/13 00:00:00 28kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qg3 Rc8 5.Qg4
+/= (0.28) Depth: 8/14 00:00:00 81kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Nd4 Bd7 5.h6 g6
+/- (0.72) Depth: 9/17 00:00:00 139kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Nd4 Bd7 5.Qe5 b4 6.h6 g6
+/= (0.52) Depth: 10/17 00:00:00 198kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Nd4 Bd7 5.Rde1 Re8 6.Rxe8 Rxe8 7.Qg5
+/= (0.40) Depth: 11/17 00:00:00 420kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Nd4 Bd7 5.Rde1 Re8 6.Rxe8 Rxe8 7.Qg5
+/= (0.40) Depth: 12/17 00:00:00 814kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rde1 Rdc8 5.Rg5 Rxa3 6.Reg1 g6 7.hxg6 hxg6 8.Rxd5
+/= (0.52) Depth: 13/18 00:00:00 1037kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rde1 Bd7 5.Nc5 Re8 6.Nxd7 Rxe1+ 7.Rxe1 gxf6 8.Nxf8 Kxf8
+/- (0.80) Depth: 14/18 00:00:00 2174kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Rd8 5.bxa3 Ra8 6.Nd4 Bd7 7.Qxd5 Qxa3 8.c3 b4 9.h6 g6 10.Qxd7 Qxa2+ 11.Kc1 bxc3
+/= (0.68) Depth: 15/25 00:00:01 8603kN
1.Qf6 Qf8 2.exd5 Rd6 3.Qg5 exd5 4.Rxd5 Rxd5 5.Qxd5 Rc8 6.Qe5 axb2 7.Qxb2 f6 8.Nd4 Bd7 9.Nxb5 Qc5 10.Qb3+ Kh8
+/= (0.56) Depth: 16/29 00:00:03 18750kN
1.Qf6 Qf8 2.exd5 Rd6 3.Qg5 exd5 4.Rxd5 Rxd5 5.Qxd5 Rc8 6.Qf5 Ra8 7.Qc5 Qxc5 8.Nxc5 Bc6 9.Ne4 Bxe4 10.fxe4 axb2 11.Kxb2
+/= (0.56) Depth: 17/29 00:00:04 26021kN
1.Qf6 Qf8 2.exd5 Rd6 3.Qg5 exd5 4.Rxd5 Rxd5 5.Qxd5 Rc8 6.Qf5 Ra8 7.Qc5 Qxc5 8.Nxc5 Bc6 9.Ne4 Bxe4 10.fxe4 axb2 11.Kxb2
+/= (0.56) Depth: 18/29 00:00:07 51348kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rdd8 5.b4 Bc6 6.h4 Ra8 7.Rg2 Re8 8.Rdg1 g6 9.hxg6 fxg6 10.Qc7 Qg7
+/= (0.60) Depth: 19/29 00:00:25 176mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.f5 Kh8 7.Qb2 f6 8.h6 g6 9.fxg6 Bxg6 10.Rf1 Ra6 11.Nd4 Rxa3 12.Nxb5 Ra6 13.Nc7
+/- (0.76) Depth: 20/36 00:00:51 365mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.f5 Kh8 7.Qb2 f6 8.h6 g6 9.fxg6 Bxg6 10.Rf1 Ra6 11.Nd4 Rxa3 12.Nxb5 Ra6 13.Nc7
+/- (0.76) Depth: 21/36 00:01:07 490mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.f5 Rxa3 7.Qe5 Ra6 8.Nc5 Rd6 9.f6 g6 10.Re1 Bc6 11.Qf4 Rd8
+/= (0.60) Depth: 22/41 00:02:45 1230mN

(Prakash, Bhubaneswar 13.12.2011)


Default settings is worse in Stock.

New game
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by Stockfish VE_06 64bit:

1.Qf6 Qf8 2.bxa3 Rbc8 3.h6 g6 4.exd5 Rxd5 5.Rxd5 exd5
+/= (0.52) Depth: 7/11 00:00:00 29kN
1.Qg5 Qf8 2.exd5 exd5 3.Rxd5 f6 4.Qd2 Bxh5
+/= (0.68) Depth: 8/11 00:00:00 51kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Nc5 Bc6 5.Qg5
+/= (0.68) Depth: 9/15 00:00:00 134kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Qg5 f6 5.Qf5 Kh8 6.Rxd5 Rxd5 7.Qxc8 Rxh5
+/= (0.68) Depth: 10/15 00:00:00 168kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rde1 Rdc8 5.Nd4 Kh8 6.Qe7 Qxe7 7.Rxe7 Rxa3 8.Rge1
+/- (1.05) Depth: 11/19 00:00:00 433kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rde1 d4 5.Nxd4 Kh8 6.Qe5 f6 7.Qe3 Rxa3
+/- (0.92) Depth: 12/21 00:00:00 597kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Rd8 5.Nd4 f6 6.Qe6+ Bf7 7.Qxf6 Re8 8.Qg5 h6 9.Qf5 axb2 10.Kxb2 Qb4+ 11.Nb3
+/- (0.96) Depth: 13/21 00:00:00 896kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Rd8 5.Nd4 f6 6.Qe6+ Kh8 7.h6 g5 8.Re1 axb2 9.Qe7 Bh5 10.Qxf8+ Rxf8 11.Kxb2 Re8 12.Rxe8+ Bxe8 13.Kc3
+/= (0.64) Depth: 14/25 00:00:00 1432kN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.Nc5 Rxd5 5.Rxd5 exd5 6.Qe5 Bc6 7.Ne6 fxe6 8.Qxe6+ Qf7 9.Qxc6 Rxa3 10.Qd6
+/- (0.72) Depth: 15/29 00:00:00 2897kN
1.Qf6 Qf8 2.exd5 Rd6 3.Qg5 exd5 4.Rxd5 Rxd5 5.Qxd5 axb2 6.Qc5 Ra8 7.Kxb2 f6 8.h6 g6 9.Qxf8+ Kxf8 10.Nd4 Bf7
+/= (0.52) Depth: 16/29 00:00:00 4575kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rd3 Rac8 5.Nd4 Bd7 6.Qe5 b4 7.axb4 Re8 8.Qxd5 Qxb4+ 9.Nb3 Be6 10.Qd4 Qf8
+/= (0.64) Depth: 17/29 00:00:01 6523kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rd3 Kh8 5.Qf5 Kg8 6.Nd4 Ra6 7.Qe5 f6 8.Qf5 Qc5 9.Qg4 g5 10.Ne6
+/- (0.72) Depth: 18/29 00:00:01 8535kN
1.Qf6 Qf8 2.exd5 Rd6 3.Qg5 exd5 4.Nd4 Bd7
+/= (0.60 --) Depth: 19/31 00:00:02 16653kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 dxe4 6.Rxd6 exf3 7.Rgd1 Bc6 8.h6 g6 9.bxa3 Qe7 10.Qd4 Qf8 11.Qe5 Re8 12.Qc3
+/= (0.56) Depth: 19/35 00:00:03 21738kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 dxe4 6.Rxd6 exf3 7.Rgd1 Bc6 8.h6 g6 9.bxa3 Qe7 10.Qd4 Qf8 11.Qe5 Re8 12.Qc3
+/= (0.56) Depth: 20/35 00:00:04 28761kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 dxe4 6.Rxd6 exf3 7.Rgd1 Bc6 8.h6 g6 9.bxa3 Qe7 10.Qd4 Qf8 11.Kb2 Qxh6 12.Qc3
+/= (0.64 ++) Depth: 21/35 00:00:04 31631kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 dxe4 6.Rxd6 exf3 7.Rgd1 Bc6 8.h6 g6 9.bxa3 Qe7 10.Qd4 Qf8 11.Qc5 Bd7 12.Qf2
+/= (0.56) Depth: 21/35 00:00:05 34688kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 Rxd1+ 5.Rxd1 fxe6 6.Qxf8+ Kxf8 7.Nc5 Ke7 8.Re1 Bd7 9.Nxd7 Kxd7 10.Kxb2 Ke7
+/= (0.64 ++) Depth: 22/35 00:00:05 35178kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 axb2 5.h6 g6 6.Ne4 dxe4 7.Qxd6 Qxd6 8.Rxd6 exf3 9.Rf1 Ra8 10.Rxf3 f5 11.Rfd3
+/= (0.48 --) Depth: 22/35 00:00:06 43806kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rde1 d4 5.Nxd4 Kh8 6.Qe5 f6 7.Qe3 Bf7 8.h6 gxh6 9.Ne6 Bxe6 10.Qxe6 Rxa3 11.Rg8+ Qxg8 12.Qxf6+ Qg7 13.Qxd8+ Qg8 14.Qxg8+ Kxg8 15.Rg1+
+/- (0.72 ++) Depth: 22/35 00:00:06 44657kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 Re6 6.Rxd5 axb2 7.Rdg5 g6 8.hxg6 fxg6 9.Qxf8+ Kxf8 10.Rd1 Ra6 11.Rd6 Ra3 12.Rf6+ Kg8 13.Kxb2 Rca8 14.Nc3
+/= (0.68) Depth: 22/35 00:00:07 47796kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.Ne4 Re6 6.Rxd5 Bc6 7.Rdg5 g6 8.Nf6+ Kh8 9.bxa3 Ra8 10.hxg6 fxg6 11.Nd5 Qxa3 12.Qd4+ Kg8
+/= (0.56 --) Depth: 23/35 00:00:09 63345kN
1.Qf6 Qf8 2.bxa3 Ra8 3.Rd2 Kh8 4.Qe5 f6 5.Qxe6 Bxh5
+/= (0.44 --) Depth: 23/36 00:00:18 129mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.Nc5 Rxd5 5.Rxd5 exd5 6.Qe5 f6 7.Qd4 Qf7 8.h6 g6 9.Kb2 Qf8 10.Re1 Ra7 11.Qe3 Bf7 12.Qf4 Qxc5 13.Qb8+ Be8
+/= (0.52) Depth: 23/39 00:00:31 220mN
1.Qf6 Qf8 2.exd5 exd5
+/= (0.64 ++) Depth: 24/39 00:00:33 233mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.Nd4 Bd7 7.Qe5 Rxa3 8.Qxd5 Qb4+ 9.Nb3 Qe7 10.h6 g6 11.Rd1 Ra7 12.Qc5
+/- (0.76 ++) Depth: 24/39 00:00:34 244mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.Nd4 Kh8 7.Qe5 f6 8.Qc7 Bf7 9.Rg3 Re8 10.Nf5 Bxh5 11.Qxg7+ Qxg7 12.Rxg7 Re1+ 13.Kb2 Bg6 14.Re7 Re4 15.Rxe4 dxe4
+/= (0.52) Depth: 24/39 00:00:38 274mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.Nd4 Rxa3 7.Nf5 Qb4+ 8.Ka1
+/= (0.60 ++) Depth: 25/39 00:00:41 288mN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Rde1 Ra8 5.Nd4 Bd7 6.Re7 Rxa3 7.h6
+/= (0.68 ++) Depth: 25/39 00:00:43 304mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Rbd8 4.Rd2 exd5 5.Qb2 Ra8 6.Nd4 Bd7 7.Rdg2 g6 8.Rg5 Qg7 9.hxg6 Rxg6 10.f4 Qf6 11.R1g3 Re8 12.Qb4 Qxf4 13.Rxd5
+/- (0.72) Depth: 25/39 00:00:49 348mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Rbd8 4.Rd2 exd5 5.Qb2 f6 6.Rdg2 R8d7 7.Nd4 Ra6 8.Re2 Bxh5 9.Re3 Qb8 10.Rge1 Qxh2 11.Qxb5 Raa7
+/= (0.60 --) Depth: 26/39 00:00:59 417mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Rbd8 4.Rg2 g6 5.hxg6 hxg6 6.Rd3 Ra8 7.Qe5 exd5 8.Nc5 Bc6 9.Qd4 Qg7 10.Kb2 Rdd8 11.h4 Qxd4+ 12.Rxd4 Kg7 13.h5 Rh8 14.hxg6
+/= (0.68) Depth: 26/39 00:01:04 448mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Rbd8 4.Rg2 exd5 5.Qd4 f5 6.Rdg1 R8d7 7.Qe5 Bxh5 8.Nc5 Re7
+/= (0.56 --) Depth: 27/39 00:01:19 557mN
1.Qf6 Qf8 2.bxa3 Ra8 3.h6 g6 4.exd5 Rxd5 5.Rxd5 exd5 6.Qe5 Rxa3 7.Qxd5 Qxh6 8.Re1 Qf8 9.Rg1 Kh8 10.c3
+/= (0.44 --) Depth: 27/39 00:01:39 700mN
1.Qf6 Qf8 2.bxa3 Ra8 3.exd5 Rxd5 4.Rxd5 exd5 5.Rg2 g6 6.hxg6 hxg6 7.Rg4 Bd7 8.Rh4 Qg7 9.Qd6 Be6 10.Nd4 Re8 11.Nxe6 Qf6 12.Rf4 Qxe6 13.Qxe6 fxe6 14.Kc1 Ra8 15.Rf6 Rxa3 16.Kd2 Kg7 17.Rxe6
+/= (0.44) Depth: 27/39 00:01:48 762mN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Rbd8 4.Nc5 exd5 5.Qf5 Bd7 6.Nxd7
+/= (0.56 ++) Depth: 28/39 00:02:01 856mN

(Prakash, Bhubaneswar 13.12.2011)


Slight change in Parameters and Stock VE6 finds it.


New game
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by Stockfish VE_06 64bit:

1.Qf6 Qf8 2.bxa3 Kh8 3.Qg5 f6 4.Qg4 dxe4 5.fxe4 Rxd1+ 6.Rxd1
+/= (0.64) Depth: 7/10 00:00:00 26kN
1.Qf6 Qf8 2.bxa3 Kh8 3.Qh4 Kg8 4.exd5 Rxd5 5.Rxd5 exd5 6.h6
+/- (0.72) Depth: 8/13 00:00:00 47kN
1.Qf6 Qf8 2.bxa3 Kh8 3.Qh4 Kg8 4.exd5 Rxd5 5.Rxd5 exd5 6.h6
+/- (0.72) Depth: 9/13 00:00:00 70kN
1.Qf6 Qf8 2.bxa3 Kh8 3.Qh4 f6 4.exd5 Rxd5 5.Rxd5 exd5 6.Qd4 Rc8 7.Qxd5 Qxa3
+/= (0.56) Depth: 10/16 00:00:00 169kN
1.Qf6 Qf8 2.bxa3 Kh8 3.Qc3 Rbc8 4.Qe5 Kg8 5.h6 g6 6.exd5 Rxd5 7.Rxd5 exd5
+/- (0.80) Depth: 11/16 00:00:00 254kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Ra8 4.Rg3 Kh8 5.Qc3 Rdc8 6.Qb4 Bc6 7.Nd4
+/- (0.76) Depth: 12/21 00:00:00 763kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 Rxd1+ 5.Rxd1 fxe6 6.Qxe6+ Bf7 7.Qd6 Qe8 8.Qf6 Qf8 9.Rd7 Re8 10.Kxb2 Ra8
+/- (1.17) Depth: 13/21 00:00:00 1059kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Kh8 4.Qd4 Rd6 5.Qb4 Bc6 6.Rg5 f6 7.Rgg1 Bd7 8.Nc5
+/- (1.01) Depth: 14/25 00:00:00 1599kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Rde1 Kh8 5.Qe7 Qxe7 6.Rxe7 Rd7 7.Rge1 Rxe7 8.Rxe7 f6 9.h6 gxh6 10.h3 Kg8
+/- (1.09) Depth: 15/26 00:00:00 2477kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Rde1 Kh8 5.Qe7 Qxe7 6.Rxe7 Rd7 7.Rge1 Rxe7 8.Rxe7 f6 9.h6 gxh6 10.h3 Kg8 11.Nd4 Bg6
+/- (0.80) Depth: 16/30 00:00:01 5816kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Rd8 5.Nd4 f6 6.Qe6+ Kh8 7.h6 gxh6 8.bxa3 Bg6 9.Nf5 Bxf5 10.Qxf5 Qe7
+/- (0.92) Depth: 17/30 00:00:01 6712kN
1.Qf6 Qf8 2.exd5 Rd6 3.h6 g6 4.dxe6 Rxe6 5.Qf4 Ra8 6.Nd4 Qb4 7.b3 Qc3
+/= (0.68 --) Depth: 18/30 00:00:02 13854kN
1.Qf6 Qf8 2.bxa3 Ra8 3.exd5 Rxd5 4.Rxd5 exd5 5.Qe5 f6 6.Qxd5+ Bf7 7.Qc5 Qxc5 8.Nxc5 Rxa3
+/= (0.50 --) Depth: 18/30 00:00:04 27709kN
1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.Rd4 Rxd5 5.Rxg7+ Qxg7 6.Rg4 Qxg4 7.fxg4 Ra4 8.Qe7 Bc6 9.g5 Rd7 10.Qc5 Rd1+ 11.Kb2
+/= (0.60) Depth: 18/30 00:00:04 29742kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rbb6 5.b4 Rf6 6.Qe5 Rxf3 7.Rxg7+ Qxg7 8.Qxe8+ Qf8 9.Qxf8+ Kxf8 10.Nd7+
+/- (0.72 ++) Depth: 19/33 00:00:05 35971kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 Rxd5 4.Rxd5 exd5 5.b4 Ra8 6.f4 Rc8 7.f5
+/- (0.84 ++) Depth: 19/33 00:00:05 36538kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 Rxd5 4.Rxd5 exd5 5.b4 g6 6.f4 Qg7 7.Qxg7+ Kxg7 8.Rg3 Ra8 9.Kc1 f6 10.Re3 gxh5 11.Kd2
+/- (0.76) Depth: 19/33 00:00:05 38368kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 Rxd5 4.Rxd5 exd5 5.b3 Rc8 6.Nd3 b4 7.Qe5 f6 8.Qf5 Rc3 9.Qxd5+ Bf7 10.Qb7
+/- (0.88 ++) Depth: 20/33 00:00:06 40914kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.Qf5 Bf7 7.Rg2 Re8 8.Rdg1 Re7 9.Rxg7+ Qxg7 10.Rxg7+ Kxg7 11.h6+ Kg8
+/= (0.64 --) Depth: 20/33 00:00:06 44072kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.Qf5 Bf7 7.Rg2 Re8 8.Rdg1 Re7 9.f4 Be6 10.Nxe6 Rexe6 11.Qd3 Re4 12.Rxg7+ Qxg7 13.Rxg7+ Kxg7 14.Qxb5 Rxf4
+/= (0.68) Depth: 20/33 00:00:07 46139kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.Qf5 Bd7 7.Nxd7 Rxd7 8.Qxd7 Qxb4+ 9.Ka1 Qc3+
+/= (0.56 --) Depth: 21/37 00:00:08 58577kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.h6 g6 7.h4 Ra8 8.Rge1 Bc6 9.Re2 d4 10.Rd3 Re8 11.Rxe8 Qxe8 12.Rxd4 Qe1+ 13.Qc1
+/= (0.56) Depth: 21/37 00:00:11 73061kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.h6 g6 7.h4 Ra8 8.Rd3 f5 9.h5
+/= (0.68 ++) Depth: 22/37 00:00:11 76104kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 axb2 5.h6 g6 6.Ne4 Rdd8 7.Nf6+ Kh8 8.Nxd5 Rd6 9.Kxb2
+/- (0.80 ++) Depth: 22/37 00:00:11 76689kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f6 6.h6 g6 7.h4 Ra8 8.Rd3 Ra7 9.Re3 Bf7 10.Re2 Qd8 11.Rge1 d4
+/= (0.64) Depth: 22/37 00:00:13 92044kN
1.Qf6 Qf8 2.exd5 Rd6 3.Nc5 exd5 4.Qf4 Rc8 5.b4 f5 6.h6 Rg6 7.Rxg6 hxg6 8.Qe5 gxh6 9.Rg1 Qg7 10.Qe6+ Kh7
+/= (0.52 --) Depth: 23/38 00:00:20 140mN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Kh8 4.Qd4 f6 5.h6 gxh6 6.Qb4 Qxb4 7.axb4 Bh5 8.Rg3
+/- (0.76 ++) Depth: 23/38 00:00:21 144mN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Ra8 5.Qxd5 Rc8 6.Qe5 axb2 7.Nd4 f6 8.Qf5 Bf7 9.Ne6 Bxe6 10.Qxe6+ Kh8 11.Qd7 Ra8 12.Rd1 Qg8 13.Qd5 Qc8 14.Kxb2 b4 15.Kc1 Qe8 16.Kb1
+/= (0.68) Depth: 23/38 00:00:22 154mN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qe5 Ra8 5.Qxd5 Rc8 6.Qe5 axb2 7.Nd4 Bd7 8.Nxb5 Bxb5 9.Qxb5 Rc5 10.Qxb2 Rxh5 11.c4 f6 12.f4 Rc5 13.Qb3 Qc8
+/= (0.60 --) Depth: 24/38 00:00:27 187mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Qd3+ 6.Ka1 axb2+ 7.Kxb2 Qe2+ 8.Kb1 Ke8 9.Nc5
+/- (0.76 ++) Depth: 24/38 00:00:30 213mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 exf3 6.Rg1
+/- (0.88 ++) Depth: 24/38 00:00:30 215mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 exf3 6.Rg1
+/- (1.07 ++) Depth: 24/38 00:00:31 217mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 exf3 6.Rg1
+/- (1.34 ++) Depth: 24/38 00:00:31 218mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 exf3 6.Rg1
+- (1.75 ++) Depth: 24/38 00:00:31 220mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 exf3 6.Rg1
+- (2.36 ++) Depth: 24/38 00:00:32 223mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 axb2 6.Qg7+ Ke7 7.Qe5 Rc8 8.Nd4 Bd7 9.fxe4 Qc3 10.Nf5+ Ke8 11.Ng7+ Kd8 12.Qg5+ Kc7 13.Qf4+ Kb6 14.Qf2+ Ka5 15.Rxd7
+- (3.27 ++) Depth: 24/38 00:00:32 226mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 axb2 6.Qg7+ Ke7 7.Qe5 Rc8 8.Nd4 Bd7 9.Nf5+ Kd8 10.Nd6 Qc3 11.Nxf7+ Ke7 12.Qxe4 Be8 13.Nd6 Bg6 14.Nxc8+ Qxc8 15.Qb4+ Kf7 16.Qxb2 e5 17.Rd6
+- (4.64 ++) Depth: 24/44 00:00:33 234mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 dxe4 4.Rg1 Rd1+ 5.Rxd1 axb2 6.Rg1 Qa3 7.fxe4
+- (6.69 ++) Depth: 24/47 00:00:34 243mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7
+- (8.56) Depth: 24/47 00:00:36 256mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (8.68 ++) Depth: 25/47 00:00:37 262mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (8.80 ++) Depth: 25/48 00:00:37 265mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (8.98 ++) Depth: 25/48 00:00:38 271mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (9.26 ++) Depth: 25/48 00:00:39 277mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (9.67 ++) Depth: 25/52 00:00:40 284mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Ra8 8.cxd8Q+ Rxd8 9.bxa3 Rd5 10.Nd4 Qe7 11.Qf4 Kd7 12.Rg8 e5 13.Qg4+ f5 14.Qxf5+ Kd6 15.Rg7 exd4 16.Qf4+ Kd7 17.Rxe7+ Kxe7 18.Qe4+ Kd6
+- (9.89) Depth: 25/52 00:00:42 303mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Ra8 8.cxd8Q+ Rxd8 9.bxa3 Rd5 10.Nd4 Qe7 11.Qf4 Kd7 12.Rg8 e5 13.Qg4+ f5 14.Qxf5+ Kd6 15.Rg7 exd4 16.Qxd5+ Kxd5 17.Rxe7
+- (10.02 ++) Depth: 26/52 00:00:44 319mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Ra8 8.cxd8R+ Rxd8 9.bxa3 Rd5 10.Nd4 Qe7 11.Qf4 Kd7 12.Rg8 e5 13.Qg4+ f5 14.Qxf5+ Kd6 15.Rg7 exd4 16.Qxd5+ Kxd5 17.Rxe7
+- (10.14 ++) Depth: 26/52 00:00:45 323mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg8+ Kd7 7.Qxf7+ Kc8 8.Qxe6+ Bd7 9.Qa6+ Kc7 10.Qa7+ Kd6
+- (9.77 --) Depth: 26/52 00:00:46 331mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Rg1 Ke8 6.Rg7 Qd3+ 7.Kc1 axb2+ 8.Kxb2 Qe2+ 9.Kb1 Qd3+ 10.Kc1 Qf1+ 11.Kc2 Qf2+ 12.Nd2 Qa7 13.Rg8+ Kd7 14.Qxf7+ Kc8 15.Rxd8+ Kxd8 16.Qxa7 Ra8 17.Qxh7 Rxa2+ 18.Kd3 dxe4+ 19.fxe4 Ke8 20.Qg6+ Ke7 21.Qg7+
+- (10.32 ++) Depth: 26/52 00:00:47 342mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Ra8 8.cxd8R+ Rxd8 9.bxa3 Rd5 10.Nd4 Qe7 11.Qf4 Kd7 12.Rg8 e5 13.Qg4+ f5 14.Qxf5+ Kd6 15.Rg7 Rxd4 16.Rxe7 Rd1+ 17.Kb2 Kxe7 18.Qxe5+ Kd7 19.Qxb5+ Kd6 20.Qg5
+- (10.38) Depth: 26/52 00:00:50 361mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.Rg8+ Kd7 7.Qxf7+ Kc8 8.dxc6 Qd6
+- (10.26 --) Depth: 27/52 00:00:55 398mN

(Prakash, Bhubaneswar 13.12.2011)

Fastest Is Zappa Crazy


New game
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by Zappa Mexico II x64 Crazy:

1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Na5
+- (2.20) Depth: 9/34 00:00:01 1406kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.c3 Qc4 5.Na5
+- (2.20) Depth: 9/34 00:00:01 1482kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bc6 4.bxa3 Qxa3 5.Rg1 Ke8 6.Rg8+ Kd7 7.Qxf7+ Kc8 8.Rg7
+/= (0.29) Depth: 10/39 00:00:02 4837kN
1.Qg5 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Nd4 Bd7 5.h6 g6
+/- (0.83) Depth: 10/39 00:00:02 7023kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.h6 g6 5.Re1 axb2
+/- (0.91) Depth: 10/39 00:00:02 7180kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.h6 g6 5.Re1 axb2
+/- (0.91) Depth: 10/39 00:00:02 8206kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.h6 g6 5.Re1 Rc8
+/= (0.68) Depth: 11/39 00:00:02 8626kN
1.Qg5 Qf8 2.exd5 exd5 3.Nd4 axb2 4.Nf5 f6 5.Qxg7+ Qxg7 6.Rxg7+ Kh8 7.h6
+/- (0.78) Depth: 11/39 00:00:03 9923kN
1.Rg4 Qf8 2.f4 axb2 3.Rdg1 dxe4 4.Rxg7+ Qxg7 5.Rxg7+ Kxg7
+/- (0.80) Depth: 11/39 00:00:03 12029kN
1.Rg4 Qf8 2.f4 axb2 3.Rdg1 dxe4 4.Rxg7+ Qxg7 5.Rxg7+ Kxg7
+/- (0.80) Depth: 11/41 00:00:04 13300kN
1.Rg4 axb2 2.exd5 Qa3 3.Qf6 g6 4.h6 Qf8 5.d6 Qxh6
+/= (0.46) Depth: 12/41 00:00:05 17504kN
1.Qg5 Qf8 2.exd5 f6 3.Qg4 exd5 4.Rg3 axb2 5.Rdg1 Kh8 6.Kxb2
+/= (0.62) Depth: 12/41 00:00:05 21438kN
1.Rd4 Qd6 2.exd5 exd5 3.Qg5 g6 4.hxg6 fxg6 5.f4 axb2
+/- (0.97) Depth: 12/41 00:00:06 26520kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 exd5 5.bxa3 Qc4 6.Re1
+- (4.64) Depth: 12/43 00:00:08 30747kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 exd5 5.bxa3 Qc4 6.Re1
+- (4.64) Depth: 12/43 00:00:08 30781kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 b4 8.Nd4 Rbc8 9.cxd8Q+ Rxd8 10.Nxe6
+- (6.02) Depth: 13/45 00:00:09 36810kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 b4 8.Nd4 Rbc8 9.cxd8Q+ Rxd8 10.Nxe6
+- (6.02) Depth: 13/45 00:00:09 37328kN

Critter isn't fast but Finds it.

New game
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by Critter 0.90 64-bit SSE4:

1.Qf6 Qf8 2.exd5 exd5 3.Nc5 axb2 4.Kxb2 b4 5.h6
+/= (0.60) Depth: 7/12 00:00:00 31kN
1.Qf6 Qf8 2.exd5 exd5 3.Nc5 axb2 4.Kxb2 b4 5.h6
+/= (0.60) Depth: 8/12 00:00:00 41kN
1.Qf6 Qf8 2.exd5 exd5 3.Nc5 axb2 4.Kxb2 b4 5.h6
+/= (0.48 --) Depth: 9/20 00:00:00 207kN
1.Qg3 Qf8 2.exd5 exd5 3.Nd4 g6 4.Qe5 axb2 5.Nf5 f6 6.Qxb2 Bd7 7.Ne3 d4 8.Rxd4 Qe7 9.Nd5
+/= (0.39) Depth: 9/20 00:00:00 392kN
1.Qg3 Qf8 2.exd5 exd5 3.Nd4 Bd7 4.b3 Rbc8 5.Qe5 Rc5 6.h6 f6 7.Qe3 g6 8.c3
+/= (0.45) Depth: 10/20 00:00:00 455kN
1.Qg3 g6 2.hxg6 hxg6 3.exd5 exd5 4.Rd4 Qd6 5.Re1 Qf6 6.Qe5 Qxe5 7.Rxe5
+/= (0.47) Depth: 11/22 00:00:00 759kN
1.Qg5
+/= (0.58 ++) Depth: 12/25 00:00:00 1739kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 Rxd5 4.h6 Rxd1+ 5.Rxd1 axb2 6.Qxe6+ Bf7 7.hxg7 Qxg7 8.Qg4 Re8 9.Kxb2 Re2 10.Rd8+ Be8
+/= (0.58) Depth: 12/25 00:00:00 1757kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 Rxd5 4.h6 Rxd1+ 5.Rxd1 axb2 6.Qxe6+ Bf7 7.hxg7 Qxg7 8.Qg4 Re8 9.Kxb2 Re2 10.Rd8+ Be8
+/= (0.58) Depth: 13/25 00:00:00 1960kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 Rxd5 4.h6 Rxd1+ 5.Rxd1 axb2 6.Qxe6+ Bf7 7.hxg7 Qxg7 8.Qg4 Re8 9.Kxb2 Re2 10.Rd8+ Be8
+/= (0.70 ++) Depth: 14/28 00:00:00 3464kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 Rxd5 4.h6 Rxd1+ 5.Rxd1 axb2 6.Qxe6+ Bf7 7.hxg7 Qxg7 8.Qg4 Re8 9.Kxb2 Re2 10.Rd8+ Be8
+/= (0.47 --) Depth: 14/28 00:00:01 6880kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 Rxd5 4.h6 Rxd1+ 5.Rxd1 axb2 6.Qxe6+ Bf7 7.hxg7 Qxg7 8.Qg4 Re8 9.Kxb2 Re2 10.Rd8+ Be8
+/= (0.35 --) Depth: 14/44 00:00:02 13324kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 exd5 4.Nc5 Qd6 5.h6 Bg6 6.Rg2 axb2 7.hxg7 Rb6 8.Re1 Rc8 9.Qe6+ Qxe6 10.Nxe6 Re8 11.Rge2 Bf7 12.Nd4 Rxe2 13.Rxe2 Kxg7 14.Kxb2
+/= (0.41) Depth: 14/46 00:00:02 15207kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 exd5 4.Nc5 Qd6 5.h6 Bg6 6.Rg2 axb2 7.hxg7 Rb6 8.Re1 Rc8 9.Qe6+ Qxe6 10.Nxe6 Re8 11.Rge2 Bf7 12.Nd4 Rxe2 13.Rxe2 Kxg7 14.Kxb2
+/= (0.41) Depth: 15/46 00:00:02 15549kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 exd5 4.Nc5 Qd6 5.h6 Bg6 6.Rg2 axb2 7.hxg7 Rb6 8.Re1 Rc8 9.Qe6+ Qxe6 10.Nxe6 Re8 11.Rge2 Bf7 12.Nd4 Rxe2 13.Rxe2 Kxg7 14.Kxb2
+/= (0.41) Depth: 16/46 00:00:03 20202kN
1.Qg5 Qf8 2.exd5 f6 3.Qe3 exd5 4.Nc5 Qd6 5.h6 Bg6 6.Rg2 axb2 7.hxg7 Rb6 8.Re1 Rc8 9.Qe6+ Qxe6 10.Nxe6 Re8 11.Rge2 Bf7 12.Nd4 Rxe2 13.Rxe2 Kxg7 14.Kxb2
+/= (0.30 --) Depth: 17/46 00:00:10 63474kN
1.Qg5 Qf8 2.exd5 exd5 3.Nd4 f6 4.Qd2 Rd7 5.h6 g6 6.b3 Qc5 7.h4 Re7 8.h5 Rc8 9.Qd3 g5 10.f4 Bxh5 11.fxg5
+/= (0.30) Depth: 17/46 00:00:11 72804kN
1.Qg5 Qf8 2.exd5 exd5 3.Nd4 f6 4.Qd2 Rd7 5.h6 g6 6.b3 Qc5 7.h4 Rc8 8.h5 b4 9.hxg6 Bxg6 10.Ne6 Qc6 11.Nf4 Kf7 12.Nxg6 hxg6
+/= (0.38) Depth: 18/46 00:00:11 75129kN
1.Qg5 Qf8 2.exd5 exd5 3.Nd4 f6 4.Qd2 Rd7 5.h6 g6 6.b3 Qc5 7.h4 Rc8 8.h5 b4 9.hxg6 Bxg6 10.Ne6 Qc6 11.Nf4 Kf7 12.Nxg6 hxg6
+/= (0.38) Depth: 19/46 00:00:16 106mN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxg7+ Qxg7 4.Rg4 Rd1+ 5.Nc1 Rg1 6.Rxg7+ Rxg7 7.bxa3 Rg2 8.Qh3 Rg1 9.Kb2 b4 10.axb4 Rxb4+ 11.Nb3 Rc4 12.a3 Kf8 13.Nd2 Rf4 14.c4 Bc6 15.Kc3 Ke7 16.h6 Rc1+ 17.Kb2
+/= (0.36) Depth: 20/62 00:01:11 500mN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxg7+ Qxg7 4.Rg4 Rd1+ 5.Nc1 Rg1 6.Rxg7+ Rxg7 7.bxa3 h6 8.Nd3 Rc8 9.Nf2 Rg2 10.Qh3 Rg5 11.Kb2 Rgc5 12.Qg2+ Kf8 13.Ne4 Rxc2+ 14.Qxc2 Rxc2+ 15.Kxc2 Ke7 16.Nc5 f6
+/= (0.48 ++) Depth: 21/62 00:01:18 546mN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxg7+ Qxg7 4.Rg4 Rd1+ 5.Nc1 Rg1 6.Rxg7+ Rxg7 7.bxa3 h6 8.Nd3 Rc8 9.Nf2 Rg2 10.Qh3 Rg5 11.Kb2 Rgc5 12.Qg2+ Kf8 13.Ne4 Rxc2+ 14.Qxc2 Rxc2+ 15.Kxc2 Ke7 16.Nc5 f6
+/= (0.60 ++) Depth: 21/62 00:01:20 558mN
1.Rd4 Qf8 2.e5 g6 3.Rf4 Qg7 4.Rf6 Rdc8 5.Nd4 Bd7 6.f4 Re8 7.Nf3 Re7 8.hxg6 hxg6 9.f5 exf5 10.Ra6 Ree8 11.Rxa3 Rb7 12.Qb4 Qh6 13.h4 Rc7 14.Qd6 Rec8 15.Ng5 f4 16.e6 Bxe6 17.Nxe6 fxe6 18.Qxe6+ Kh7
+/= (0.55) Depth: 21/62 00:01:21 569mN
1.Rxg7+
+/- (0.77 ++) Depth: 21/62 00:01:37 687mN
1.Rxg7+
+/- (1.03 ++) Depth: 21/62 00:01:39 697mN
1.Rxg7+
+- (1.42 ++) Depth: 21/62 00:01:42 720mN
1.Rxg7+
+- (2.01 ++) Depth: 21/62 00:01:47 753mN

(Prakash, Bhubaneswar 13.12.2011)

And last but not the least Spark has A spark..

New game
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1

Analysis by SPARK-1.0-win64-mp-corei:

1.Qg5 g6 2.exd5 axb2 3.hxg6 hxg6 4.Kxb2 exd5 5.Rxd5
+/= (0.48 --) Depth: 7/15 00:00:00 63kN
1.Qg5 Qf8 2.exd5 axb2 3.Qe5 exd5 4.Kxb2
= (0.25) Depth: 7/17 00:00:00 148kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Rbc8 4.Rde1 Rd6
+/= (0.31) Depth: 7/17 00:00:00 168kN
1.Rd4 Qd6 2.Qf6 Qf8 3.exd5 axb2 4.Kxb2 Rxd5 5.Rxd5 exd5
+/= (0.45) Depth: 7/17 00:00:00 177kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.bxa3 f6 5.Nd4 Rc8
= (0.23) Depth: 8/17 00:00:00 244kN
1.Qf6 Qf8 2.bxa3 Kh8 3.Qe5 dxe4 4.Rxd8 Rxd8 5.fxe4
+/= (0.43) Depth: 8/17 00:00:00 265kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 fxe6 5.Qxf8+ Kxf8 6.Kxb2
+/= (0.34) Depth: 9/19 00:00:00 518kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 fxe6 5.Qxf8+ Kxf8 6.Kxb2 Ra8 7.Rxd8 Rxd8
= (0.17) Depth: 10/22 00:00:00 1062kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qg5 axb2 5.Qxd5 Rc8 6.Kxb2 Bc6
+/= (0.32) Depth: 10/24 00:00:00 1767kN
1.Rd4 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.Qg5 f6 5.Qxd5+ Bf7 6.Qf5 axb2 7.Kxb2 Ra8 8.Qxf6 Bxh5
+/= (0.35) Depth: 11/24 00:00:00 2166kN
1.Qf6 Qf8 2.exd5 Rxd5 3.Rxd5 exd5 4.bxa3 Rc8 5.Qe5 Rc4 6.Nd4 f6 7.Qxd5+ Bf7
+/= (0.49) Depth: 11/25 00:00:00 2893kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 fxe6 5.Qxe6+ Bf7 6.Qe5 b4 7.Kxb2 Qxh6
+/= (0.31) Depth: 12/25 00:00:00 4055kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 fxe6 5.Qxf8+ Kxf8 6.Kxb2 Rbc8 7.Rxd8 Rxd8 8.Nc5
+/= (0.40) Depth: 13/28 00:00:00 10972kN
1.Qf6 Qf8 2.exd5 axb2 3.h6 g6 4.dxe6 fxe6 5.Qxf8+ Kxf8 6.Kxb2 Rbc8 7.Rxd8 Rxd8 8.Nc5 Ke7
= (0.22) Depth: 14/31 00:00:01 19507kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Kh8 4.Qd4 f6 5.Nc5 Rd6 6.h6 g6 7.Ne4 Ra6 8.Qxd5 Bf7
= (0.19) Depth: 15/38 00:00:03 41302kN
1.Qf6 Qf8 2.exd5 exd5 3.bxa3 Kh8 4.Qf5 f6 5.Nd4 Rb6 6.Ne6 Bd7 7.Rge1 Bxe6 8.Rxe6 Rxe6 9.Qxe6 Qxa3 10.Rxd5
+/= (0.33) Depth: 16/40 00:00:06 84904kN
1.Rxg7+ Kxg7
+/= (0.44 ++) Depth: 16/40 00:00:07 98283kN
1.Rxg7+ Kxg7
+/= (0.69 ++) Depth: 16/40 00:00:07 98871kN
1.Rxg7+ Kxg7
+- (1.69 ++) Depth: 16/40 00:00:07 99978kN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.bxa3 Qd6 5.Rg1 Ke8 6.Rg8+ Qf8 7.Rxf8+ Kxf8 8.exd5 exd5 9.Nc5 Ke8 10.Nxd7 Kxd7 11.Qxf7+ Kd6 12.Qxh7 Rh8 13.Qf5 Ra8 14.Qf6+ Kc5
+- (3.20) Depth: 16/40 00:00:09 118mN
1.Rxg7+ Kxg7
+- (3.45 ++) Depth: 17/40 00:00:10 132mN
1.Rxg7+ Kxg7
+- (3.70 ++) Depth: 17/40 00:00:10 134mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.Rg1 Ke8 5.Rg8+ Qf8 6.Rxf8+ Kxf8 7.Nc5 dxe4 8.Nb7 Rxb7 9.Qxd8+ Be8 10.Qd6+ Re7 11.fxe4 axb2 12.Qe5 Rd7 13.Kxb2 Ke7 14.Qxb5
+- (3.93) Depth: 17/44 00:00:11 147mN
1.Rxg7+ Kxg7
+- (4.18 ++) Depth: 18/44 00:00:12 160mN
1.Rxg7+ Kxg7
+- (4.43 ++) Depth: 18/44 00:00:12 163mN
1.Rxg7+ Kxg7
+- (5.43 ++) Depth: 18/44 00:00:13 182mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Rdc8 8.cxb8Q Rxb8 9.Rg7 Rd8 10.bxa3 Rd1+ 11.Kb2 Qe7 12.Qxe7+ Kxe7 13.Rxh7
+- (5.97) Depth: 18/44 00:00:15 202mN
1.Rxg7+ Kxg7 2.h6+ Kf8 3.Qf6 Bd7 4.exd5 Bc6 5.Rg1 Ke8 6.dxc6 Qf8 7.c7 Rdc8 8.cxb8Q Rxb8 9.Qg7 axb2 10.Qxh7 Qd6 11.Qg8+ Ke7 12.Qg5+ Ke8 13.Kxb2 Qxh2
+- (6.19) Depth: 19/50 00:00:18 247mN

(Prakash, Bhubaneswar 13.12.2011)


(Prakash, Bhubaneswar 13.12.2011)
Always Expect the Unexpected

lech
Posts: 1077
Joined: Sun Feb 14, 2010 9:02 pm

Re: An old test position : Vescovi - Gschwendtner 1994

Post by lech » Tue Dec 13, 2011 5:45 pm

Master Om wrote:Sting has problems finding it


New game
[FEN]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1[/FEN]

Analysis by Sting SF JA 111210 64bit:

1.Qf6 Qf8 2.exd5 Rd6 3.bxa3 Ra8 4.f4 Rxd5 5.Rxd5 exd5 6.f5 Rxa3 7.Qe5 Ra6 8.Nc5 Rd6 9.f6 g6 10.Re1 Bc6 11.Qf4 Rd8
+/= (0.60) Depth: 22/41 00:02:45 1230mN

(Prakash, Bhubaneswar 13.12.2011)


Default settings is worse in Stock.


(Prakash, Bhubaneswar 13.12.2011)
The depth 22 is is "too high" for Sting. :wink: :lol: :lol:
Sting inherits all options of Stockfish + Sacrifice detection. :roll:
I have to make my idea faster (for you: Master!)

lech
Posts: 1077
Joined: Sun Feb 14, 2010 9:02 pm

Re: An old test position : Vescovi - Gschwendtner 1994

Post by lech » Tue Dec 13, 2011 11:33 pm

Thanks Master Om, you very helped me. :D

Now I understand where is the reason that "Sting SF JA thread" is not able to solve this position.
I set my idea for endgames positions, just such ones I tested.
For this reason "Sting SF JA thread" can solve it:
Olafsson - Unzicker, Lugano 1970
[D]1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - 0 1
1.Rxf6!
and has some problems with middle-game positions where is just impossible to get higher depths.
It seems be easy to improve it, and "Sting SF JA thread" can be stronger and solve all combinations.

User avatar
Master Om
Posts: 380
Joined: Wed Nov 24, 2010 9:57 am
Location: INDIA

Re: An old test position : Vescovi - Gschwendtner 1994

Post by Master Om » Wed Dec 14, 2011 1:27 am

Yes. Make it for Middlegame positions also.
Always Expect the Unexpected

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