nice correspondence move

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Eelco de Groot
Posts: 4572
Joined: Sun Mar 12, 2006 2:40 am
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Re: nice correspondence move

Post by Eelco de Groot »

Maybe the difference with Louis tries is the EGTBs. Or the use of the gamescore but that seems a bit unlikely. Also asmFish is not totally up to date so it still has the older King Safety I think, from before the cocktail with Mobility. It is a bit non orthogonal now, Stockfish' King Safety. Then again I have not tried the difference so it is pure speculation. In the new Kaissa (below, Kaissa III) I use most of the cocktail King Safety from Stock but not in the old Kaissa. Here I see not very much difference but that is just one position, and Rxg7 is not the only winning move, it just has a bit higher score than Re1 or Qf4.

This is Kaissa changes added to the very latest 2018-02-09 Stock sources. I threw out the Enhanced Verification Search (sorry Guenther) but that is just for this version. And I changed LMR to a very aggressive form:

Code: Select all

              // Decrease reduction for exact PV nodes
              if (pvExact)
                  r -= ONE_PLY;

              // Increase reduction if ttMove is a capture
              if (ttCapture)
                  r += ONE_PLY;
changed to

Code: Select all

              // Increase reduction if ttMove is a capture or not an exact PV node
              if (ttCapture || !pvExact)
                  r += ONE_PLY;

4r1rk/p3qpp1/1pnp1n1p/5P2/P1PPP3/4Q2P/2BB2R1/6RK w - -

Engine: Kaissa III HT (i7 6700, 3 hyperthreads, 512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott


23/48 0:02 +2.99 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bf4 Na5 48.d5 Nb7
49.Kh2 Nc5 50.Qe1 Nxa4 51.Qe6+ Qf7
52.Bxd6 Nc5 53.Qc8+ (26.330.104) 11962

24/52 0:02 +2.98 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Nf7
49.h4 Qg7 50.Qe8+ Qf8 51.Qxf8+ Kxf8
52.Kg3 Ke7 53.Kf4 (32.381.414) 12173

25/48 0:03 +2.98 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Qg7
49.Qd5+ Nf7 50.Qe6 Kh7 51.Qe8 Qg8
52.Qe7 Qg7 53.Qxa7 (44.153.696) 12518

26/51 0:03 +2.90-- 40.Rxg7 Rxg7 (46.531.946) 12572

26/51 0:03 +2.83-- 40.Rxg7 Rxg7 (47.586.384) 12522

26/51 0:03 +2.71-- 40.Rxg7 Rxg7 (47.909.744) 12499

26/55 0:04 +2.69 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Rxe4 45.Bxe4 Nxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Qf7
49.h4 Qd7 50.Bf4 Nf7 51.a5 bxa5
52.c5 dxc5 53.dxc5 (57.270.741) 12515

27/58 0:06 +2.76++ 40.Rxg7 (79.144.529) 12796

27/59 0:06 +2.84++ 40.Rxg7 (83.103.744) 12842

27/59 0:06 +2.95++ 40.Rxg7 (84.806.064) 12863

27/59 0:06 +2.98 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Rxe4 45.Bxe4 Nxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Qg7
49.Qd5+ Nf7 50.Qe6 Kh7 51.Qe8 Ng5
52.Qh5+ Kg8 53.h4 (88.090.241) 12897

28/59 0:07 +2.91-- 40.Rxg7 Rxg7 (96.798.581) 12991

28/59 0:07 +2.83-- 40.Rxg7 Rxg7 (99.510.252) 13006

28/59 0:07 +2.91++ 40.Rxg7 (102.911.884) 13043

28/59 0:08 +3.07++ 40.Rxg7 (111.550.845) 13085

28/59 0:09 +2.82 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Rxe4 45.Bxe4 Nxe4
46.Qxe4 f6 47.Bf4 Na5 48.d5 Nb7
49.Qe6+ Kg7 50.Qd7+ Qf7 51.Bh6+ Kg8
52.Qc8+ Kh7 53.Bf4 (124.663.484) 13152

29/51 0:10 +2.90++ 40.Rxg7 (134.059.586) 13203

29/51 0:10 +2.75-- 40.Rxg7 Rxg7 (138.385.727) 13247

29/55 0:11 +2.86++ 40.Rxg7 (149.470.166) 13289

29/55 0:12 +3.02++ 40.Rxg7 (163.941.831) 13362

29/57 0:15 +3.13 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Qg7
49.Qd5+ Nf7 50.Qe6 Kh7 51.Qe8 Ng5
52.Qh5+ Kg8 53.h4 (207.418.636) 13339

30/43 0:16 +3.05-- 40.Rxg7 Rxg7 (224.195.475) 13320

30/52 0:17 +3.13++ 40.Rxg7 (229.986.227) 13331

30/63 0:18 +3.17 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Qg7
49.Qd5+ Nf7 50.Qe6 Kh7 51.Qe8 Ng5
52.Qh5+ Kg8 53.h4 (250.793.637) 13384

31/59 0:21 +3.10-- 40.Rxg7 Rxg7 (283.824.635) 13372

31/59 0:21 +3.17++ 40.Rxg7 (284.316.039) 13372

31/59 0:22 +3.09 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Rxe4 45.Bxe4 Nxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Kg7
49.Bf4 Nf7 50.Qg2+ Kh8 51.Qe2 Kg7
52.Qg4+ Kh8 53.Qh5+ (296.581.931) 13379

32/58 0:25 +3.02-- 40.Rxg7 Rxg7 (350.844.937) 13576

32/58 0:26 +2.94-- 40.Rxg7 Rxg7 (366.066.004) 13592

32/58 0:27 +3.02++ 40.Rxg7 (375.835.135) 13575

32/61 0:30 +3.17++ 40.Rxg7 (414.040.566) 13550

32/65 0:39 +3.39++ 40.Rxg7 (541.528.771) 13555

32/66 0:44 +3.14 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Kf7
49.Kg3 Qg7+ 50.Kf2 Kf8 51.Bf4 Qd7
52.Bh6+ Kf7 53.Qd5+ (607.360.130) 13534

33/56 0:46 +3.22++ 40.Rxg7 (623.515.934) 13549

33/64 0:46 +3.29++ 40.Rxg7 (634.602.022) 13561

33/64 0:49 +3.18 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Kf7
49.Kg3 Qg7+ 50.Kf2 Kf8 51.Bf4 Qd7
52.Bh6+ Kf7 53.Qd5+ (672.125.519) 13592

34/73 0:51 +3.26++ 40.Rxg7 (705.885.880) 13617

34/73 0:55 +3.32 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bd2 Nd8 48.Kh2 Kf7
49.Kg3 Qg7+ 50.Kf2 Kf8 51.Bf4 Qd7
52.Bh6+ Kf7 53.Qd5+ (758.838.294) 13631

35/69 1:01 +3.40++ 40.Rxg7 (841.204.947) 13669

35/69 1:08 +3.25-- 40.Rxg7 Rxg7 (935.662.847) 13606

35/69 1:09 +3.36++ 40.Rxg7 (940.500.352) 13605

35/69 1:29 +3.52++ 40.Rxg7 (1.227.309.204) 13760

35/69 1:35 +3.13-- 40.Rxg7 Rxg7 (1.327.573.190) 13881

35/69 1:37 +3.43++ 40.Rxg7 (1.360.450.197) 13896

35/74 1:44 +3.38 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Rxe4 45.Bxe4 Nxe4
46.Qxe4 f6 47.Bf4 Na5 48.h4 Kg7
49.Qe2 Qf7 50.d5 Qd7 51.Qe6 Qf7
52.Qe4 Nb7 53.Kh2 (1.448.998.142) 13901

36/61 1:54 +3.45++ 40.Rxg7 (1.595.152.436) 13885

36/66 2:05 +3.50 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bf4 Na5 48.h4 Qf7
49.d5 Nb7 50.Qe2 Qf8 51.Qe6+ Kg7
52.Qd7+ Qf7 53.Bh6+ (1.736.000.292) 13875

37/66 2:07 +3.50 40.Rxg7 Rxg7 41.Rxg7 Kxg7 42.Qxh6+ Kg8
43.Bg5 Qf8 44.Qh4 Nxe4 45.Bxe4 Rxe4
46.Qxe4 f6 47.Bf4 Na5 48.h4 Qf7
49.d5 Nb7 50.Qe2 Qf8 51.Qe6+ Kg7
52.Qd7+ Qf7 53.Bh6+ (1.773.475.932) 13879

best move: Rg2xg7 time: 2:07.829 min n/s: 13.879.461 nodes: 1.773.475.932
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
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peter
Posts: 3187
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: nice correspondence move

Post by peter »

Very well, Robert!

BTW, does anybody know, what has become of Rondo? If not under further development, maybe some free download eventually sometime?
Or at least to be bought somewhere
:?:
Peter.
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pferd
Posts: 134
Joined: Thu Jul 24, 2014 2:49 pm

Re: nice correspondence move

Post by pferd »

peter wrote:Very well, Robert!

BTW, does anybody know, what has become of Rondo? If not under further development, maybe some free download eventually sometime?
Or at least to be bought somewhere
:?:
I would be interested in this engine, too! Did it ever appear in public beside the two events mentioned by the chessprogramming wiki back in 2010?
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User avatar
Ovyron
Posts: 4556
Joined: Tue Jul 03, 2007 4:30 am

Re: nice correspondence move

Post by Ovyron »

pferd wrote:I would be interested in this engine, too!
Add me to the club!
Your beliefs create your reality, so be careful what you wish for.
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