Giri-Howell, Corus B 2010

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jdart
Posts: 4366
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Giri-Howell, Corus B 2010

Post by jdart »

A nice move by Giri, home prep I assume:

[D] rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 18

bm Ng5

Arasan 11.6 takes about 90 seconds to find this. Rybka 3 is much faster: about 38 seconds on my quad.

--Jon
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Giri-Howell, Corus B 2010

Post by zullil »

jdart wrote:A nice move by Giri, home prep I assume:

[D] rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 18

bm Ng5

Arasan 11.6 takes about 90 seconds to find this. Rybka 3 is much faster: about 38 seconds on my quad.

--Jon
Stockfish-1.6.2 (8 threads) takes 17 seconds:

Code: Select all

Searching: rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K -
infinite: 0 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     +0.04   00:00      727 O-O Qxe2 Bxe2 Bxa2 
 3     -0.16   00:00     1318 O-O Qxe2 Bxe2 Nc6 
 4     -0.08   00:00     2349 O-O Qxe2 Bxe2 Nc6 Bb5 
 4     +0.93   00:00     2867 Qxe4 fxe4 Ng5 Bxa2 Nxe4 
 5     +0.65   00:00     3780 Qxe4 fxe4 Ng5 Bxa2 Nxe4 Nd7 
 6     +0.97   00:00     5553 Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Be2 
 7     +0.77   00:00    21967 Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Nd7 O-O Nb6 Bc6 
 8     +0.97   00:00    54866 Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 a5 Bg5 Rd5 O-O Nd7 
                              c4 
 9     +1.09   00:00   250657 Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Nd6 Be6 O-O 
                              Rf8 Bg5 Nd7 Rfe1 
10     +0.85   00:00   431892 Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Rd1 Rxd1+ Kxd1 
                              a5 Kc2 Na6 Rd1 Rf8 g3 Rf5 
11     +0.89   00:00    1049k Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Rd1 Rxd1+ Kxd1 
                              Bb5 Nxc5 Bxa4+ Nxa4 Nc6 Ke2 Rf8 Be3 Be5 c4 Kg7 
12     +0.93   00:00    1865k Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Rd1 Rxd1+ Kxd1 
                              Bd5 f3 Nc6 Kc2 Re8 Bd6 c4 Rd1 Rxe4 fxe4 Bxe4+ Kd2 
                              Bxg2 
13     +1.05   00:00    2637k Qxe4 fxe4 Ng5 Bxa2 Nxe4 c4 Ra1 Rd5 Ba4 Bb3 Ke2 
                              Bxa4 Rxa4 Nd7 Be3 a6 f3 a5 Rxc4 Ne5 
14     +0.97   00:01    4823k Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Nxc5 a5 f3 Na6 
                              Ne4 Rd3 Bc2 Bxc3+ Nxc3 Rxc3 Kd2 Ra3 
15     +1.17   00:01    6723k Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Rd1 Rxd1+ Kxd1 
                              Bb5 Nxc5 Bxa4+ Nxa4 Nc6 Ke2 Rf8 Be3 Be5 c4 a5 Kd3 
                              Kf7 f4 Rd8+ Ke4 
16     +1.13   00:02   13312k Qxe4 fxe4 Ng5 Bxa2 Nxe4 a6 Ba4 Bc4 Rd1 Rxd1+ Kxd1 
                              Bb5 Nxc5 Bxa4+ Nxa4 Nc6 Re1 Rd8+ Ke2 Re8+ Kf1 Kf7 
                              Rxe8 Kxe8 Ke2 Ke7 Nb6 a5 Nd5+ Ke6 
17     +1.17   00:05   36837k Qxe4 fxe4 Ng5 Bxa2 O-O a6 Ba4 Nd7 Bc6 Ra7 Rfd1 
                              Rf8 Be3 Ne5 Bxe4 Rc7 Rd6 Rf6 Rcd1 Rxd6 Rxd6 Bc4 
18  >  +1.37   00:09   65487k Qxe4 fxe4 Ng5 Bxa2 O-O a6 Ba4 Nd7 Bc6 Ra7 Rfd1 
                              Rf8 Be3 Ne5 Bxe4 Rc7 c4 Bb3 Bd5+ Kh8 Ne6 Bxd1 
                              Nxc7 
19     +1.29   00:14  108842k Qxe4 fxe4 Ng5 Bxa2 O-O a6 Ba4 Nd7 Bc6 Ra7 Rfd1 
                              Rf8 Be3 Ne5 Bxe4 Rc8 Ra1 Bb3 Rdb1 Bc4 Ra5 Bf8 Ra4 
                              Rd8 Bc2 Bd3 Bxd3 Rxd3 Ne4 a5 Nf6+ Kf7 
19  >  +2.22   00:17  127495k Ng5 Qxe2+ Kxe2 Bxa2 Ra1 Bd5 Rhd1 Bxc3 Rxd5 Rxd5 
                              Bc4 
20     +2.38   00:33  251244k Ng5 Qxe2+ Kxe2 Bxa2 Ra1 h6 Rxa2 hxg5 Bxg5 Rd6 Rd1 
                              Rxd1 Kxd1 Kh7 Kc2 a6 Be3 Ra7 Ra5 Be5 h4 Rb7 Bc4 
                              Bd6 Bd5 Rb6 Bxc5 Bxc5 Rxc5 
21     +2.34   00:43  324924k Ng5 Qxe2+ Kxe2 Bxa2 Ra1 h6 Rxa2 hxg5 Bxg5 Rd6 Rd1 
                              Rxd1 Kxd1 a6 Be3 Ra7 Kc2 Kh7 Ra5 Be5 Bc4 Bxh2 g3 
                              Re7 Bxc5 Re5 Bb6 Rxa5 Bxa5 
22     +2.75   01:31  678372k Ng5 Qxe2+ Kxe2 Bxa2 Ra1 h6 Rxa2 hxg5 Bxg5 Rd6 Rd2 
                              Re6+ Be3 Kh7 Bc4 Re7 Bd5 f4 Bxa8 fxe3 fxe3 Bxc3 
                              Rd3 Be5 Ra3 c4 Bd5 c3 e4 Kg7 Rc1 Kf6 h4 Bd4 Rcxc3 
                              Bxc3 Rxc3 
23     +2.91   01:55  860661k Ng5 Qxe2+ Kxe2 Bxa2 Ra1 h6 Rxa2 hxg5 Bxg5 Rd6 Rd2 
                              Re6+ Be3 Kh7 Bc4 Re7 Bd5 f4 Bxa8 fxe3 fxe3 Bxc3 
                              Rd3 Be5 Ra3 c4 Bd5 c3 e4 Kg7 Rc1 Kf6 h4 a6 Kd3 g5 
                              Rf1+ Kg6 
Nodes: 876267824
Nodes/second: 7392544
Best move: Ng5
Ponder move: Qxe2+
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Giri-Howell, Corus B 2010

Post by zullil »

jdart wrote:A nice move by Giri, home prep I assume:

[D] rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 18

bm Ng5

Arasan 11.6 takes about 90 seconds to find this. Rybka 3 is much faster: about 38 seconds on my quad.

--Jon
About 40 seconds for Crafty:

Code: Select all

Crafty v23.1 (8 cpus)

White(1): book off
book file disabled.
White(1): setboard rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 18
White(1): st 99999
search time set to 99999.00.
White(1): sd 22
search depth set to 22.
White(1): display stats
display statistics at end of each search.
White(1): go
              time limit 1666:39 (+0.00) (1666:39)
              depth   time  score   variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
               10     0.03   0.14   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 Nd7
                                    4. O-O a6 5. Bc6 Bc4 6. Bxa8 Bxf1 7.
                                    Rxf1 Rxa8
               10->   0.06   0.14   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 Nd7
                                    4. O-O a6 5. Bc6 Bc4 6. Bxa8 Bxf1 7.
                                    Rxf1 Rxa8 (s=4)
               11     0.08   0.00   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Bd5 5. Bg5 Rf8 6. f3 (s=3)
               11->   0.16   0.00   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Bd5 5. Bg5 Rf8 6. f3 (s=6)
               12     0.18   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 a5 (s=5)
               12->   0.21   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 a5
               13     0.25   0.28   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bb3 7.
                                    Bd5+ Bxd5 8. Rxd5
               13->   0.29   0.28   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bb3 7.
                                    Bd5+ Bxd5 8. Rxd5 (s=2)
               14     0.34   0.09   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 a5 7.
                                    Be3 Re8
               14     1.09   0.12   1. c4 a6 2. Ba4 Bd7 3. Qxe4 fxe4 4.
                                    Bxd7 Rxd7 5. Ng5 Nc6 6. Nxe4 Re8 7.
                                    f3 Kf7
               14->   1.09   0.12   1. c4 a6 2. Ba4 Bd7 3. Qxe4 fxe4 4.
                                    Bxd7 Rxd7 5. Ng5 Nc6 6. Nxe4 Re8 7.
                                    f3 Kf7
               15     1.31  -0.12   1. c4 a6 2. Ba4 Bd7 3. Qxe4 fxe4 4.
                                    Bxd7 Rxd7 5. Ng5 Nc6 6. Nxe4 Re8 7.
                                    f3 Nb4 8. Rd1 Nd3+ 9. Kf1
               15     2.13   0.18   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    Bd5+ Bxd5 8. Rxd5 Rb7 <HT>
               15->   3.42   0.18   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    Bd5+ Bxd5 8. Rxd5 Rb7 <HT> &#40;s=8&#41;
               16     3.62   0.15   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bb3 7.
                                    Rd2 Rf8 8. Bd6 Rf5 &#40;s=7&#41;
               16->   4.08   0.15   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bb3 7.
                                    Rd2 Rf8 8. Bd6 Rf5
               17     4.52   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    f3 Rf8 8. Bd6 Rf5 9. Kf2
               17->   5.24   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    f3 Rf8 8. Bd6 Rf5 9. Kf2 &#40;s=2&#41;
               18     6.13   0.19   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    f3 Rf8 8. Bd6 Rf5 9. Bg3 Ne5 10. Rd8+
                                    Rf8
               18->   9.54   0.19   1. Qxe4 fxe4 2. Ng5 Bxa2 3. Nxe4 a6
                                    4. Ba4 Nd7 5. Bc6 Ra7 6. Rd1 Bc4 7.
                                    f3 Rf8 8. Bd6 Rf5 9. Bg3 Ne5 10. Rd8+
                                    Rf8 &#40;s=4&#41;
               19    12.15   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. O-O Bh6
                                    4. Rc2 Bxg5 5. Bxg5 Bb3 6. Rb2 Rd5
                                    7. Rxb3 Rxg5 8. Bc4+ Kh8 9. Re1 Rg4
                                    10. Be6 Rf4 &#40;s=3&#41;
               19->  15.00   0.25   1. Qxe4 fxe4 2. Ng5 Bxa2 3. O-O Bh6
                                    4. Rc2 Bxg5 5. Bxg5 Bb3 6. Rb2 Rd5
                                    7. Rxb3 Rxg5 8. Bc4+ Kh8 9. Re1 Rg4
                                    10. Be6 Rf4
               20    18.86   0.31   1. Qxe4 fxe4 2. Ng5 Bxa2 3. O-O a6
                                    4. Ba4 Bh6 5. Rfe1 Nd7 6. Bc6 Ra7 7.
                                    Rcd1 Bb3 8. Rd6 Rf8 9. Bxd7 Rxf4 10.
                                    Nxe4 Bg7 11. Nxc5 Bxc3
               20    39.88     +1   1. Ng5!                           
               20    48.84   1.16   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Kf3 g5 11. Rb5 Re8 12. Rxc5
               20->  48.84   1.16   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Kf3 g5 11. Rb5 Re8 12. Rxc5 &#40;s=2&#41;
               21    59.19   1.10   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Rb5 Re8+ 11. Kf3 Bh6 12. Re2 Rxe2 13.
                                    Bxe2
               21->   1&#58;04   1.10   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Rb5 Re8+ 11. Kf3 Bh6 12. Re2 Rxe2 13.
                                    Bxe2
               22     1&#58;34   1.21   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Bd5 Re8+ 11. Kf1 Re7 12. Bf4 a5 13.
                                    Re2
               22->   1&#58;43   1.21   1. Ng5 Qxe2+ 2. Kxe2 Bxa2 3. Ra1 h6
                                    4. Rxa2 hxg5 5. Bxg5 Rd6 6. Bf4 Rb6
                                    7. Bc4+ Kh8 8. Bc7 Rf6 9. Rb1 Nc6 10.
                                    Bd5 Re8+ 11. Kf1 Re7 12. Bf4 a5 13.
                                    Re2
              time=1&#58;43  mat=0  n=2186792346  fh=91%  nps=21.1M
              extensions=83.7M qchecks=83.0M reduced=226.7M pruned=785.3M
              predicted=0  evals=974.4M  50move=0  EGTBprobes=0  hits=0
              SMP->  splits=255455  aborts=28479  data=42/512  elap=1&#58;43
terminating SMP processes.
White&#40;1&#41;&#58; Ng5
              time used&#58;   1&#58;43
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User avatar
meschle
Posts: 200
Joined: Tue Apr 01, 2008 11:53 pm

Re: Giri-Howell, Corus B 2010

Post by meschle »

1 second for rybka winfinder

FEN: rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 18

Rybka WinFinder v2.2.mp.x64:
4 00:00 3.892 3.985.408 +0.45 Qe2xe4
5 00:00 6.744 406.226 +0.45 Qe2xe4
6 00:00 13.288 800.406 +0.30 Qe2xe4 f5xe4 Nf3g5
7 00:00 31.904 413.540 +0.30 Qe2xe4 f5xe4 Nf3g5 Be6xa2
8 00:00 69.040 497.865 +0.22 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4
8 00:00 108.372 472.225 +0.30 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rh1d1 Rd8xd1
9 00:00 146.820 480.331 +0.37 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rh1d1 Rd8xd1 Rc1xd1 Bg7f6
10 00:00 251.124 483.366 +0.22 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rh1d1 Rd8xd1 Rc1xd1 Bg7f6 Rd1d6
10 00:00 251.124 483.366 +0.26 Qe2xe4
10 00:00 251.124 483.366 +0.30 Qe2xe4
10 00:00 295.356 461.043 +0.37 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4
11 00:01 424.736 456.379 +0.30 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Nb8d7
11 00:01 440.080 450.641 +0.90 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 c5c4 Rb1xb3
12 00:01 578.364 462.691 +0.75 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 c5c4 Rb1xb3 c4xb3 Bb5c4+ Kg8f8
13 00:02 890.264 463.462 +0.75 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 c5c4 Rb1xb3 c4xb3 Bb5c4+ Kg8f8 Ng5e6+ Kf8e7
14 00:04 1.802.336 469.377 +1.05 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 Bb3f7 Rb1d1 Rd8c8 Ng5xf7 Kg8xf7 Bb5c4+ Kf7f8
15 00:06 2.722.672 441.211 +1.12 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 h7h6 Rb1xb3 h6xg5 Bf4xg5 Rd8c8 Bb5c4+ Kg8h8
16 00:13 5.744.552 429.436 +1.35 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 h7h6 Rb1xb3 h6xg5 Bf4xg5 Rd8c8 Bb5c4+ Kg8h8
17 00:24 10.178.392 426.076 +1.35 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 h7h6 Rb1xb3 h6xg5 Bf4xg5 Rd8c8 Bb5c4+ Kg8h8
18 00:47 17.595.860 378.803 +1.35 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 h7h6 Rb1xb3 h6xg5 Bf4xg5 Rd8d6 Bg5f4 Rd6d8


14 secs for Stockfish-16s-x64-ja

Stockfish-16s-x64-ja:
1 00:00 669 5.575 +0.04 OO
2 00:00 727 6.058 +0.04 OO Qe4xe2 Bb5xe2 Be6xa2
3 00:00 1.318 10.892 -0.16 OO Qe4xe2 Bb5xe2 Nb8c6
4 00:00 2.277 18.663 -0.08 OO Qe4xe2 Bb5xe2 Nb8c6 Be2b5
4 00:00 2.794 22.715 +0.92 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4
5 00:00 3.719 28.607 +0.64 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 Nb8d7
6 00:00 5.093 37.175 +0.96 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5e2
7 00:00 20.670 135.986 +0.44 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5e2 Ba2d5 Ne4xc5 Nb8d7 Nc5xd7 Rd8xd7
8 00:00 110.564 524.000 +0.64 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Ne4xc5 a6a5 Bf4c7 Rd8d5 Nc5e6 Nb8a6
9 00:00 194.975 802.366 +0.88 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 f2f3 a6a5 Ke1f2 Nb8d7 Bf4g5 Nd7e5 Bg5xd8 Ne5d3+ Kf2e3 Nd3xc1
10 00:00 305.052 1.074.126 +0.76 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Nb8d7 Bf4g5 Rd8e8 f2f3 Ra8a7 Ke1f2 Ra7b7 Ne4xc5 Rb7b2+ Kf2g3
11 00:00 564.655 1.482.034 +0.96 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Nb8d7 Bf4g5 Rd8e8 f2f3 Ra8a7 Ke1f2 Ba2c4 Rh1d1 Bc4b5 Rc1a1 Bb5xa4 Ra1xa4 Nd7b6
12 00:00 1.380.797 2.245.198 +0.92 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8xd1+ Ke1xd1 Bc4d5 f2f3 Nb8c6 Kd1c2 Ra8f8 Bf4e3 c5c4 Rh1d1 Nc6e7
13 00:00 2.504.783 2.737.467 +1.05 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8xd1+ Ke1xd1 Bc4b5 Ne4xc5 Bb5xa4+ Nc5xa4 Nb8c6 Rh1e1 Ra8f8 Bf4g3 Kg8f7 Kd1c2 Rf8e8 Re1xe8 Kf7xe8
14 00:01 2.773.206 2.781.550 +1.05 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8xd1+ Ke1xd1 Bc4b5 Ne4xc5 Bb5xa4+ Nc5xa4 Nb8c6 Rh1e1 Ra8d8+ Kd1c2 Nc6d4+ Kc2b2 Nd4b5 Re1e6 a6a5 Re6b6 Rd8f8 g2g3
15 00:01 4.227.566 3.045.796 +1.17 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8xd1+ Ke1xd1 Bc4b5 Ne4xc5 Bb5xa4+ Nc5xa4 Nb8c6 Rh1e1 Ra8c8 g2g3 Kg8f7 Na4b6 Rc8d8+ Kd1c2 Bg7f6 Nb6c4
16- 00:02 7.632.908 3.358.076 +0.92 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8f8 Bf4d6 Rf8c8 f2f3 Bc4b5 Rd1a1 Bb5xa4 Ra1xa4 Nb8d7 Ke1f2 Nd7f6 Rh1c1 Rc8c6 Bd6e7 Nf6xe4+ Ra4xe4 c5c4
17 00:02 9.598.960 3.400.269 +1.09 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8f8 Bf4d6 Rf8c8 f2f3 Bc4b5 Rd1a1 Bb5xa4 Ra1xa4 Nb8d7 Ke1f2 Nd7f6 Ne4xc5 Nf6d5 Rh1c1 Bg7xc3
18 00:05 22.623.235 3.793.935 +0.96 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8f8 Bf4d6 Rf8c8 f2f3 Bc4b5 Ba4c2 Nb8d7 Ke1f2 Rc8e8 Rh1e1 c5c4 Bd6f4 a6a5 Rd1d5 Bb5c6 Rd5d6
19 00:13 53.050.609 3.948.686 +1.01 Qe2xe4 f5xe4 Nf3g5 Be6xa2 Ng5xe4 a7a6 Bb5a4 Ba2c4 Rc1d1 Rd8f8 Bf4d6 Rf8c8 f2f3 Bc4b5 Ba4c2 Nb8d7 Ke1f2 Rc8e8 Rh1e1 c5c4 Bd6f4 a6a5 Rd1d5 Bb5c6 Rd5d6 Ra8c8 Re1d1 Nd7b6 Ne4f6+ Bg7xf6 Rd6xf6
19+ 00:14 57.979.225 3.964.120 +1.61 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 Ba2b3 Rh1b1 Bb3d5 Rb1d1 Bg7xc3 Rd1xd5 Rd8xd5 Bb5c4
20 00:26 104.695.223 4.004.713 +2.70 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 h7h6 Ra1xa2 h6xg5 Bf4xg5 Rd8d6 Ra2d2 Rd6xd2+ Ke2xd2 Kg8h7 Rh1e1 a7a5 Re1e3 Ra8a7 Bb5c4 Bg7h8 Re3h3+ Kh7g7 Bg5h6+ Kg7f6 Bh6e3 Bh8g7 Be3xc5 Ra7c7 Bc5d4+ Kf6g5
21 00:31 123.771.868 3.918.443 +2.66 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 h7h6 Ra1xa2 h6xg5 Bf4xg5 Rd8d6 Ra2d2 Rd6e6+ Bg5e3 Kg8h7 Bb5c4 Re6b6 Be3xc5 Rb6c6 Bc4d5 Rc6xc5 Bd5xa8 Bg7xc3 Rd2d5 Rc5c4 Rd5d8 Bc3e5 Rh1b1 Rc4c2+ Ke2e3
22 00:42 166.886.959 3.930.266 +2.70 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 h7h6 Ra1xa2 h6xg5 Bf4xg5 Rd8d6 Ra2d2 Rd6e6+ Bg5e3 Kg8h7 Bb5c4 Re6e7 Bc4d5 f5f4 Bd5xa8 f4xe3 f2xe3 Bg7xc3 Rd2d3 Bc3e5 Rd3a3 c5c4 Ba8d5 c4c3 e3e4 Kh7g7 Rh1c1 Kg7f6 Ke2d3 Re7h7 h2h3
23+ 00:58 229.817.781 3.960.122 +2.90 Nf3g5 Qe4xe2+ Ke1xe2 Be6xa2 Rc1a1 h7h6 Ra1xa2 h6xg5 Bf4xg5 Rd8d6 Ra2d2 Rd6e6+ Bg5e3 Kg8h7 Bb5c4 Re6e7 Bc4d5 f5f4 Bd5xa8 f4xe3 f2xe3 Bg7xc3 Rd2d3 Bc3e5 Rd3a3 c5c4 Ba8d5 c4c3 e3e4 Kh7g7 Rh1c1 Kg7f6 Ke2d3 Re7h7 h2h3
Regards Mark

Quad Q6600 3.0 Ghz, Vista 64bit, 4gb Ram
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Giri-Howell, Corus B 2010

Post by yanquis1972 »

very nice result from franklin t's latest smooth scaling ivanhoe compile --


rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K -

Engine: IvanHoe 9.70b x64 128s (1024 MB)
by Yakov Petrovich Golyadkin, Igor Igorovi

16.01 0:01 +0.64 1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6
4.Ba4 c4 5.Ra1 Bb3 6.O-O Ra7 7.Rfb1 Re7
8.Bg5 Rxe4 9.Bxd8 Bxc3 10.Ra3 Bb4
11.Raxb3 cxb3 12.Bxb3+ Kg7 13.Bd5 (10.376.430) 5685

16.39 0:01 +0.64 1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6
4.Ba4 c4 5.Ra1 Bb3 6.O-O Ra7 7.Rfb1 Re7
8.Bg5 Rxe4 9.Bxd8 Bxc3 10.Ra3 Bb4
11.Raxb3 cxb3 12.Bxb3+ Kg7 13.Bd5 (10.550.583) 5635

17.39 0:02 +0.56-- 1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6
4.Ba4 c4 5.Ra1 Bb3 6.O-O Ra7 7.Rfb1 Re7
8.Bg5 Rxe4 9.Bxd8 Bxc3 10.Ra3 Bb4
11.Raxb3 cxb3 12.Bxb3+ Kg7 13.Bb6 a5
14.Bd5 (13.187.277) 5635

17.01 0:02 +0.61 1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6
4.Ba4 Nd7 5.Bg5 Re8 6.f3 Ra7 7.O-O Bc4
8.Rfd1 Bb5 9.Bb3+ c4 10.Ba2 Rc7
11.Rb1 Nc5 12.Nf6+ Bxf6 13.Bxf6 (15.299.218) 5668

17.39 0:02 +0.61 1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6
4.Ba4 Nd7 5.Bg5 Re8 6.f3 Ra7 7.O-O Bc4
8.Rfd1 Bb5 9.Bb3+ c4 10.Ba2 Rc7
11.Rb1 Nc5 12.Nf6+ Bxf6 13.Bxf6 (15.301.226) 5669

18.19 0:04 +0.69++ 1.Ng5 (27.685.550) 5799

18.01 0:05 +0.77++ 1.Ng5 (29.219.645) 5728

18.01 0:05 +0.89++ 1.Ng5 (31.063.906) 5609

18.01 0:06 +1.07++ 1.Ng5 (33.804.607) 5485

18.01 0:07 +1.34++ 1.Ng5 (37.568.982) 5339

18.01 0:09 +1.51 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bc4+ Kh8 8.Be7 Rd7 9.Bxc5 Nc6
10.Ra6 Re8+ 11.Be3 Rd6 12.Bb5 Ree6
13.Bxc6 Rxc6 14.Rxa7 (49.563.797) 5393

18.39 0:09 +1.51 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bc4+ Kh8 8.Be7 Rd7 9.Bxc5 Nc6
10.Ra6 Re8+ 11.Be3 Rd6 12.Bb5 Ree6
13.Bxc6 Rxc6 14.Rxa7 (49.616.662) 5381

19.01 0:10 +1.59++ 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bc4+ Kh8 8.Be7 Rd7 9.Bxc5 Nc6
10.Ra6 Re8+ 11.Be3 Rd6 12.Bb5 Ree6
13.Bxc6 Rxc6 14.Rxa7 (56.365.387) 5449

19.01 0:11 +1.67++ 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Re4 8.Rd8+ Kh7 9.Bd3 Ra4
10.Bxc5 Bf6 11.Rc8 Ra2+ 12.Kf3 Rd2
13.Rc7+ Bg7 14.Bb5 (62.470.359) 5492

19.01 0:12 +1.79++ 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bc4+ Kh8 8.Be7 Rd7 9.Bxc5 Nc6
10.Ra6 Re8+ 11.Be3 Rd6 12.Bb5 Ree6
13.Bxc6 Rxc6 14.Rxa7 (68.967.651) 5512

19.01 0:14 +1.97++ 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bf4 Rd8 8.Rd1 Rxd1 9.Kxd1 Kh7
10.Kc2 a5 11.Ra3 Bf6 12.Bd6 c4
13.Bxc4 Nd7 (78.913.482) 5552

19.01 0:16 +2.03 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bf4 Rd8 8.Rd1 Rxd1 9.Kxd1 Kh7
10.Kc2 c4 11.Bxc4 Nc6 12.Bd5 Rc8
13.Rb7 Nd8 14.Rxa7 (90.014.854) 5596

19.39 0:16 +2.03 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bf4 Rd8 8.Rd1 Rxd1 9.Kxd1 Kh7
10.Kc2 c4 11.Bxc4 Nc6 12.Bd5 Rc8
13.Rb7 Nd8 14.Rxa7 (90.387.505) 5581

20.01 0:20 +2.11++ 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 Bb3
4.Rhb1 h6 5.Rxb3 hxg5 6.Bxg5 Rd6
7.Bf4 Rd8 8.Rd1 Rxd1 9.Kxd1 Kh7
10.Kc2 c4 11.Bxc4 Nc6 12.Bd5 Rc8
13.Rb7 Nd8 14.Rxa7 (114.902.644) 5683

20.01 0:23 +2.18 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (136.369.736) 5747

20.39 0:23 +2.18 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (137.157.116) 5739

21.01 0:28 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (165.906.684) 5808

21.39 0:28 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (167.011.128) 5793

22.01 0:36 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (213.863.617) 5891

22.39 0:36 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (215.237.832) 5878

23.01 0:50 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (299.883.302) 5977

23.39 0:50 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (302.493.387) 5966

23.01 1:00 +2.19 1.Ng5 Qxe2+ 2.Kxe2 Bxa2 3.Ra1 h6
4.Rxa2 hxg5 5.Bxg5 Rd6 6.Rd2 Re6+
7.Be3 Kh7 8.Bc4 Re7 9.Bd5 f4 10.Bxa8 fxe3
11.fxe3 Bxc3 12.Rd3 Be5 13.Rb1 Na6
14.Rbd1 (363.105.763) 6011

best move: Nf3-g5 time: 1:00.591 min n/s: 6.011.000 CPU 0.1% n/s(1CPU): 1716.032.704 nodes: 363.105.763
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tano-urayoan
Posts: 638
Joined: Thu Aug 30, 2007 8:23 pm
Location: San Juan, Puerto Rico

Re: Giri-Howell, Corus B 2010

Post by tano-urayoan »

Isn't this the critical position
[d] rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 17

Playing dxe6 before Qxe4 was played.
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User avatar
M ANSARI
Posts: 3707
Joined: Thu Mar 16, 2006 7:10 pm

Re: Giri-Howell, Corus B 2010

Post by M ANSARI »

R3 8 cores very fast ... 1 second

New game
rn1r2k1/p5bp/4b1p1/1Bp2p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 1

Analysis by Rybka 3:

1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6 4.Be2
+/= (0.31) Depth: 6 00:00:00 2kN
1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6 4.Be2 Nd7
+/= (0.26) Depth: 7 00:00:00 5kN
1.Qxe4 fxe4 2.Ng5 Bxa2 3.Nxe4 a6 4.Be2 Nd7
+/= (0.26) Depth: 8 00:00:00 7kN
1.Qxe4 fxe4[] 2.Ng5 Bxa2 3.Nxe4 a6 4.Be2 Nd7 5.0-0 a5
+/= (0.31) Depth: 9 00:00:00 16kN
1.Qxe4 fxe4[] 2.Ng5 Bxa2 3.Nxe4 a6 4.Ba4 Bc4 5.Nxc5 Ra7 6.f3 Re7+ 7.Ne4
+/= (0.31) Depth: 10 00:00:00 36kN
1.Qxe4 fxe4[] 2.Ng5 Bxa2 3.Nxe4 a6 4.Ba4 Bc4 5.Nxc5 Ra7 6.f3 Re7+ 7.Ne4 Nd7
+/= (0.29) Depth: 11 00:00:00 56kN
1.Qxe4 fxe4[] 2.Ng5 Bxa2 3.Nxe4 a6 4.Ba4 Bc4 5.Rd1 Rxd1+ 6.Kxd1 Bd5 7.Re1 c4 8.f3 Nc6 9.Kc2
+/= (0.46) Depth: 12 00:00:00 177kN
1.Qxe4 fxe4[] 2.Ng5 Bxa2 3.Nxe4 a6 4.Ba4 Bc4 5.Rd1 Rxd1+ 6.Kxd1 Bd5 7.Re1 c4 8.f3 Nc6 9.Kc2
+/= (0.46) Depth: 13 00:00:00 244kN
1.Ng5
+/= (0.66 !) Depth: 13 00:00:01 449kN
1.Ng5
+/- (0.86 !) Depth: 13 00:00:01 491kN
1.Ng5
+/- (1.26 !) Depth: 13 00:00:02 673kN
1.Ng5 Qxe2+ 2.Kxe2[]
+- (1.49) Depth: 13 00:00:03 1461kN
1.Ng5 Qxe2+ 2.Kxe2[] Bxa2 3.Ra1[] h6 4.Rxa2[] hxg5[] 5.Bxg5 Rd6 6.Rd2 Re6+ 7.Be3[] Re4 8.Rd8+ Kh7 9.Bc6 Nxc6[]
+- (1.68) Depth: 14 00:00:06 2274kN
1.Ng5 Qxe2+ 2.Kxe2[] Bxa2 3.Ra1[] h6 4.Rxa2[] hxg5[] 5.Bxg5 Rd6 6.Rd2 Re6+ 7.Be3 Kh7 8.Bc4 Re7[]
+- (1.84) Depth: 15 00:00:11 4278kN
1.Ng5
+- (2.04 !) Depth: 16 00:00:21 7954kN
1.Ng5 Qxe2+ 2.Kxe2[] Bxa2 3.Ra1[] Bb3 4.Rhb1 Bd5 5.Rd1 Bxc3 6.Rxd5 Rxd5 7.Bc4[] Bxa1 8.Bxd5+[] Kg7 9.Bxa8 Nd7 10.Bc6 Nf8 11.Be3 Bd4 12.Bxd4+ cxd4 13.Kd3 Kf6 14.Nf3[] g5 15.Nxd4[] Ng6 16.Kc3[]
+- (2.23) Depth: 16 00:00:28 10267kN
1.Ng5 Qxe2+[] 2.Kxe2[] Bxa2 3.Ra1[] Bb3 4.Rhb1 Bd5 5.Rd1 Bxc3 6.Rxd5 Rxd5 7.Bc4[] Bxa1 8.Bxd5+[] Kg7 9.Bxa8 Nd7 10.Bc6 Nf8 11.Be3 h6 12.Nf3 Ne6 13.Bd5 f4 14.Bxe6 fxe3 15.Kxe3 a5 16.Kd3[]
+- (2.23) Depth: 17 00:00:33 11906kN

(, Microsoft 25.01.2010)
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M ANSARI
Posts: 3707
Joined: Thu Mar 16, 2006 7:10 pm

Re: Giri-Howell, Corus B 2010

Post by M ANSARI »

tano-urayoan wrote:Isn't this the critical position
[d] rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 17

Playing dxe6 before Qxe4 was played.


R3 clip analysis 8 cores ... it does seem that this was home analysis with computer help. It is hard for a human to calculate OTB that dxe6 causes problems for the black rook. No problem for computers though. It still needs more than 4 minutes on big hardware though.

New game
rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 1

Analysis by Rybka 3:

1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2
+/= (0.35) Depth: 6 00:00:00 4kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2 Nd7
+/= (0.33) Depth: 7 00:00:00 9kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6
+/= (0.28) Depth: 8 00:00:00 21kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6
= (0.24) Depth: 9 00:00:00 22kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5[] Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 10 00:00:00 63kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 11 00:00:00 86kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 12 00:00:00 135kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rfd1 Bb3
+/= (0.50) Depth: 13 00:00:01 426kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Rfe1 a6 7.Ra1 a5
+/= (0.63) Depth: 14 00:00:05 2349kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rd5 7.Bxc4 Bxc4 8.Nxc4 Nc6 9.Rfe1 Rad8 10.f3 Kf7 11.Kf2
+/= (0.58) Depth: 15 00:00:07 3051kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rd5 7.Bxc4 Bxc4 8.Nxc4 Nc6 9.Rfe1 Rad8 10.f3 Kf7 11.Kf2
+/= (0.58) Depth: 16 00:00:09 3887kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rc8 7.Nxb3 cxb3 8.Rb1 Rxc3
+/= (0.62) Depth: 17 00:00:16 6281kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 a6 7.Bxc4+ Bxc4 8.Nxc4 a5 9.Nb6 Ra6 10.Na4 Rc6 11.Bg5 Rf8 12.Rfd1 Rc4 13.Ra1
+/= (0.61) Depth: 18 00:00:29 11505kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Bh6 6.Rfd1 Rd3 7.f3 a5 8.fxe4 Rxd1+ 9.Rxd1 Na6 10.Rd7 Rf8 11.g3 Bc4 12.h4 Bxg5 13.hxg5 Re8 14.Bc2 Rf8
+/= (0.66) Depth: 19 00:01:42 42077kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Bh6 6.Rcd1 Rd3 7.Rfe1 Bxg5 8.Bxg5 Bf7 9.Be3 a5 10.Bxc5 Na6
+/= (0.70) Depth: 20 00:03:28 85460kN
1.dxe6
+/- (0.86 !) Depth: 20 00:05:00 116mN
1.dxe6
+/- (1.06 !) Depth: 20 00:05:56 134mN
1.dxe6
+- (1.46 !) Depth: 20 00:07:34 169mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6
+- (1.99) Depth: 20 00:13:55 311mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6 3.Be5 Be7 4.Bc7 Rf8 5.Rhe1 Ba6 6.c4 Rc8 7.Bf4 Bb7 8.Rcd1 Bc6 9.Bd6 Bf6 10.Rd5 Re8 11.Kd3 a6
+- (2.07) Depth: 21 00:18:58 430mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6 3.Be5 Be7[] 4.Bc7 Rf8 5.Rhe1 Ba6 6.c4 Rc8 7.Bf4 Bb7 8.Rcd1 Bc6 9.Bd6 Bf6 10.Rd5 Re8 11.Kd3 a6
+- (2.07) Depth: 22 00:25:33 576mN


(, Microsoft 25.01.2010)
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M ANSARI
Posts: 3707
Joined: Thu Mar 16, 2006 7:10 pm

Re: Giri-Howell, Corus B 2010

Post by M ANSARI »

M ANSARI wrote:
tano-urayoan wrote:Isn't this the critical position
[d] rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 17

Playing dxe6 before Qxe4 was played.


R3 clip analysis 8 cores ... it does seem that this was home analysis with computer help. It is hard for a human to calculate OTB that dxe6 causes problems for the black rook. No problem for computers though. It still needs more than 4 minutes on big hardware though.

New game
rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 1

Analysis by Rybka 3:

1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2
+/= (0.35) Depth: 6 00:00:00 4kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2 Nd7
+/= (0.33) Depth: 7 00:00:00 9kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6
+/= (0.28) Depth: 8 00:00:00 21kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6
= (0.24) Depth: 9 00:00:00 22kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5[] Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 10 00:00:00 63kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 11 00:00:00 86kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rd1 Bc4
+/= (0.33) Depth: 12 00:00:00 135kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Nd7 6.Bc6 Ra7 7.Rfd1 Bb3
+/= (0.50) Depth: 13 00:00:01 426kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Rfe1 a6 7.Ra1 a5
+/= (0.63) Depth: 14 00:00:05 2349kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rd5 7.Bxc4 Bxc4 8.Nxc4 Nc6 9.Rfe1 Rad8 10.f3 Kf7 11.Kf2
+/= (0.58) Depth: 15 00:00:07 3051kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rd5 7.Bxc4 Bxc4 8.Nxc4 Nc6 9.Rfe1 Rad8 10.f3 Kf7 11.Kf2
+/= (0.58) Depth: 16 00:00:09 3887kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 Rc8 7.Nxb3 cxb3 8.Rb1 Rxc3
+/= (0.62) Depth: 17 00:00:16 6281kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 Bb3 5.Nxe4 c4 6.Nd2 a6 7.Bxc4+ Bxc4 8.Nxc4 a5 9.Nb6 Ra6 10.Na4 Rc6 11.Bg5 Rf8 12.Rfd1 Rc4 13.Ra1
+/= (0.61) Depth: 18 00:00:29 11505kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Bh6 6.Rfd1 Rd3 7.f3 a5 8.fxe4 Rxd1+ 9.Rxd1 Na6 10.Rd7 Rf8 11.g3 Bc4 12.h4 Bxg5 13.hxg5 Re8 14.Bc2 Rf8
+/= (0.66) Depth: 19 00:01:42 42077kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.0-0 a6 5.Ba4 Bh6 6.Rcd1 Rd3 7.Rfe1 Bxg5 8.Bxg5 Bf7 9.Be3 a5 10.Bxc5 Na6
+/= (0.70) Depth: 20 00:03:28 85460kN
1.dxe6
+/- (0.86 !) Depth: 20 00:05:00 116mN
1.dxe6
+/- (1.06 !) Depth: 20 00:05:56 134mN
1.dxe6
+- (1.46 !) Depth: 20 00:07:34 169mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6
+- (1.99) Depth: 20 00:13:55 311mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6 3.Be5 Be7 4.Bc7 Rf8 5.Rhe1 Ba6 6.c4 Rc8 7.Bf4 Bb7 8.Rcd1 Bc6 9.Bd6 Bf6 10.Rd5 Re8 11.Kd3 a6
+- (2.07) Depth: 21 00:18:58 430mN
1.dxe6 Qxe2+ 2.Kxe2[] Bf6 3.Be5 Be7[] 4.Bc7 Rf8 5.Rhe1 Ba6 6.c4 Rc8 7.Bf4 Bb7 8.Rcd1 Bc6 9.Bd6 Bf6 10.Rd5 Re8 11.Kd3 a6
+- (2.07) Depth: 22 00:25:33 576mN


(, Microsoft 25.01.2010)

Actually with R3 I guess it all depends on the luck of the draw. Since MP engines are undetermenistic the results can vary. Here is the same position tested again with cleared hash. This time only 7 seconds

New game
rnbr2k1/p5bp/4p1p1/1BpP1p2/4qB2/2P2N2/P3QPPP/2R1K2R w K - 0 1

Analysis by Rybka 3:

1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2
+/= (0.35) Depth: 6 00:00:00 4kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2 Nd7 6.0-0
+/= (0.31) Depth: 7 00:00:00 17kN
1.Qxe4 fxe4 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Be2 Nd7 6.0-0
+/= (0.31) Depth: 8 00:00:00 30kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7
+/= (0.31) Depth: 9 00:00:00 78kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bc6 Ra7
+/= (0.33) Depth: 10 00:00:00 111kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Bc4 6.f3 Nd7 7.Bc6
+/= (0.33) Depth: 11 00:00:00 169kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5[] Bxa2 4.Nxe4 a6 5.Ba4 Bc4 6.f3 Nd7 7.Bc6 Ra7 8.Rd1 Rf8 9.Be3 Ne5
+/= (0.38) Depth: 12 00:00:00 287kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Bc4 6.f3 Nd7 7.Bc6 Ra7 8.Rd1 Rf8 9.Be3 Ne5
+/= (0.38) Depth: 13 00:00:01 427kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Nd7 6.Bg5 Ne5 7.0-0 Rf8 8.Nxc5 Rac8 9.Be3
+/= (0.46) Depth: 14 00:00:02 843kN
1.Qxe4 fxe4[] 2.dxe6 Bxe6 3.Ng5 Bxa2 4.Nxe4 a6 5.Ba4 Bc4 6.Bg5 Rd3 7.0-0 Nd7 8.Rfd1 Nb6 9.Bc2 Rxd1+ 10.Rxd1 Rb8 11.Bf4
+/= (0.38) Depth: 15 00:00:04 1668kN
1.dxe6
+/= (0.66 !) Depth: 15 00:00:07 2485kN
1.dxe6
+/- (0.86 !) Depth: 15 00:00:08 2825kN
1.dxe6
+/- (1.26 !) Depth: 15 00:00:10 3547kN
1.dxe6 Qxe2+ 2.Kxe2[] Bxe6 3.Ng5
+- (1.42) Depth: 15 00:00:14 4984kN
1.dxe6 Qxe2+ 2.Kxe2[] Bxe6 3.Ng5[]
+- (1.41) Depth: 16 00:00:18 6228kN
1.dxe6
+- (1.61 !) Depth: 17 00:00:35 12621kN

(, Microsoft 25.01.2010)
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