Interesting position, best move b4

Discussion of anything and everything relating to chess playing software and machines.

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
Dann Corbit
Posts: 10475
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Interesting position, best move b4

Post by Dann Corbit » Tue Jul 03, 2018 9:48 pm

Code: Select all

Searching: 1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0

 1   +0.70   00:00    3494  Nce2 
 2   +0.90   00:00   23739  Kb1 a5 Qf7 
 3   +0.98   00:00   44842  Kb1 a5 Qf7 Rh8 
 4   +1.02   00:00   64612  Qe2 Bc8 Rf7 Rd7 
 5   +0.98   00:00   85305  Qg2 Rh8 Rf7 Rdf8 Rhf1 
 6   +1.02   00:00  106269  Qg2 Rdf8 Rxf8+ Rxf8 Nge2 g5 Rf1 
 7   +0.86   00:00  129456  Nce2 a5 Qf7 Rh8 Qxg6 Rdg8 Qh5 
 8   +1.33   00:00  158289  Qf7 Rh8 Nce2 b4 Kb1 a5 Qe7 Rde8 
 9   +1.34   00:00  196820  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Be3 Rf7 Bxd2+ Kxd2 Bc8 Qf3 Be6 
10   +1.56   00:00  248372  Qf7 Rh8 Nce2 Be3 Bxe3 Qxe3+ Kb1 Qg5 b4 d5 Qe6 Rdf8 Rxf8+ Rxf8 
11   +1.71   00:00  285187  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Qd8 Kb1 Bc8 Rf7 Ng5 
12   +1.67   00:00  359419  Qf7 Rh8 Nce2 g5 Qh5 Rd7 b4 Qa6 Kb1 Bb6 Qg6 Qa4 Nf5 
13   +1.79   00:00  462520  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 Ng5 Rf5 
14   +1.83   00:00  793295  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Qd8 Kb1 Bc8 Rf7 Ng5 Bxg5 Rxg5 Qh4 Be6 Rg7 
15   +2.00   00:00   1268K  Qf7 Rh8 Nce2 Bc8 b4 Rdf8 Qxg6 Qa6 Kb1 Rfg8 Qh5 Be6 b3 Bb6 Nf5 Qa3 Nxd6 Bxb3 cxb3 Qxb3+ Kc1 
16   +2.01   00:00   1656K  Qf7 Rh8 Nce2 Bc8 b4 Be3 Qxg6 Nf8 Qf6 Nh7 Qh4 a5 bxa5 Bxd2+ Kxd2 Qxa5+ Nc3 Qc7 Nf5 b4 Na4 Rdf8 
17   +1.92   00:00   4215K  Qf7 Rh8 Nce2 g5 Kb1 Bc8 Qh5 Rdf8 Rxf8 Rxf8 Bxg5 Qc7 Bd2 Qf7 Qxf7 Rxf7 Rf1 Rxf1+ Nxf1 Bg4 Nc1 
18   +1.98   00:00   5200K  Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Ne6 Qf6 Rdg8 Nf5 Bd8 Qf7 Rg2 Re1 Nf8 Qa2 Qxa2+ Kxa2 Be6+ Kb1 d5 Ne3 
19   +1.85   00:00   7150K  Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Ne6 Qf6 Rdg8 Nf5 Bd8 Qf7 Rg2 Re1 Nf8 Qa2 Qxa2+ Kxa2 Be6+ Ka1 Bb6 Nxd6 Bg4 
20   +1.90   00:00   8678K  Qf7 Rh8 Nce2 Rdg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Rf7 Qxe7 Rxe7 Bc8 d4 Ng5 d5 cxd5 exd5 Bh3 Ra1 Bg2 Raxa7 Bxd5 h7 Rd8 Kc1 
21   +1.60   00:01  10643K  Qf7 Rh8 Nce2 Rdg8 Qe7 Re8 Qg7 Reg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Qxd8+ Rxd8 Rf7 Bc8 Rg7 Rdg8 d4 Ng5 dxe5 dxe5 Rxg8 Rxg8 Nc1 Rh8 Nd3 Bh3 
22   +1.56   00:01  11271K  Qf7 Rh8 Nce2 Rdg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Qxd8+ Rxd8 Rf7 Bc8 d4 Rdg8 Re7 Ng5 d5 cxd5 exd5 Bg4 h7 Rf8 Nc3 Bf3 Rh2 
23   +0.94   00:03  41174K  Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 Nce2 Kd8 d4 exd4 b4 Bb6 Bf4 Nf8 Bg5+ Kc8 Bf6 Be6 Re7 Rxh6 Re8+ Kd7 Rxf8 Rh3 e5 Bd5 exd6 Kxd6 Ra8 c5 bxc5+ Kxc5 Rc8+ Kd6 
24   +0.87   00:04  53121K  Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Be3 Bb6 Ne2 Bc8 Kd2 Rxf1 Rxf1 Be6 d4 g5 d5 cxd5 exd5 Bxd5 Nec3 Be6 Nxb5+ Kc6 Nxa7+ Bxa7 Bxa7 Rg6 Rh1 g4 
25   +0.86   00:10 115938K  Qf7 Qc7 b4 Bb6 Qb3 Rge8 Rf7 Rd7 Rhf1 d5 R7f3 a6 Nce2 Qd6 Qa3 Qe6 Kb1 Bc8 Be3 Bxe3 Rxe3 Ng5 exd5 cxd5 d4 e4 Nf4 Qg8 Nge2 Nf3 Rf2 
26   +0.80   00:12 133443K  Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nd1 Rh8 Ne2 Bb6 c4 bxc4 bxc4 Kd8 Nec3 Ke8 R7f3 Rf8 Rxf8+ Nxf8 b4 Rf7 Rh1 Ke7 b5 cxb5 Nd5+ Ke8 cxb5 Bg4 
27   +0.92   00:14 152297K  Qf7 Qc7 b4 Bb6 Qb3 Rge8 Rf7 Rd7 Rhf1 d5 R7f3 a6 Nce2 g5 Kb1 Qd6 Nf5 Qg6 Neg3 Bc8 Qc3 g4 R3f2 Rc7 Nh4 Qe6 Re2 d4 Qa3 Rf7 Nhf5 Ref8 Ref2 
28   +0.97   00:30 309571K  Nge2 Bc8 Nd1 Be6 Be3 Bxe3+ Nxe3 a5 Qg3 Qc5 Ng4 Bxb3 Nc3 b4 cxb3 bxc3 Qg1 Qxg1 Rhxg1 cxb2+ Kxb2 Rdf8 Ra1 Rh8 Rxa5 Nf6 Ne3 Rxh6 Rga1 Rc8 Nc4 Kc7 Ra7+ Kd8 Nxd6 Rc7 Kc3 
29   +0.91   00:46 469102K  Nge2 Bc8 Nd1 a5 Be3 Be6 Qg3 Qa7 Rhg1 Bxe3+ Nxe3 Kb7 Kd2 Qc5 Nc3 Rc8 Rf3 Rc7 Kc1 Kb8 Qf2 Qa7 Rh1 Qc5 Nf1 Qxf2 Rxf2 Rcc8 Kd2 g5 Ne2 Rcf8 Rxf8+ Rxf8 Nfg3 Rf6 d4 Bg4 
30   +0.85   00:56 568403K  Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Qa7 Bxc5 Qxc5 Kb1 a4 bxa4 bxa4 Qf2 Qxf2 Rxf2 Kc7 Rhf1 g5 Ne3 Rg6 Rh1 g4 Ng3 Rh8 Kc1 Ng5 Ngf5 Rh7 Nxg4 
31   +0.95   01:17 786093K  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 Rh8 Rxg3 Rh2 Rg6 Kc7 b4 Rf2 Rh6 Rf3 Rh7+ Kb6 Kd2 Be6 Re7 
32   +0.95   01:35 957935K  Nge2 Qc7 Nd1 Bc8 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 d5 exd5 cxd5 d4 Be6 Rg6 Re8 Kd2 Kc7 Kc3 Rg8 Rxe6 g2 Nxg2 Rxg2 Ra6 Rg3+ Kb4 Rg2 Kxb5 Rxc2 Rxa7+ Kd6 
33   +0.88   02:02   1209M  Nge2 Qc7 Qg3 g5 Kb1 Bb6 Nd1 Rg6 Ne3 Rh8 Nf5 Qd7 Rh5 Bc8 Qe1 Qc7 Neg3 Rhg8 b4 Nf6 Rhh1 d5 Qd1 Rh8 Qc1 Rhg8 Qe1 Rf8 Be3 d4 Bd2 Rh8 Qd1 Qh7 Qe2 Be6 
34   +0.95   02:35   1528M  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 a5 Rxg3 Kc7 Rg7+ Rd7 Rxd7+ Kxd7 Kd2 Ke6 d4 c5 Kd3 cxd4 Kxd4 Bd7 Nd5 Bc6 b4 axb4 Nxb4 Bb7 Nd5 Bc6 b4 Kf7 c4 
35   +0.93   03:16   1912M  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 a5 Rxg3 Kc7 Rg7+ Rd7 Rxd7+ Kxd7 Kd2 Ke6 d4 c5 Kd3 Bb7 Nd1 cxd4 Kxd4 Kf6 Ne3 Bc6 Nd5+ Kf7 b4 axb4 Nxb4 Bb7 
36   +1.01   03:38   2124M  Nge2 Bc8 Nd1 Qc7 Kb1 Rdf8 Qg3 Rxf1 Rxf1 Qe7 b4 Bb6 b3 g5 Ne3 Rg6 Qh2 Nf6 Ng3 Qh7 Nef5 d5 Qe2 d4 Rh1 Bc7 Qg2 Bd7 Kb2 Ng8 Rh5 Bd8 Qe2 Bc8 Rh1 Nf6 Qg2 Be6 Ne2 
37   +1.01   04:52   2832M  Nge2 Bc8 Nd1 Qc7 Qg2 Bb6 Kb1 Rde8 Be3 g5 Ng3 Rg6 Nf5 Rh8 Rf3 g4 Rg3 Nf6 Bxb6 axb6 Nde3 Rhg8 c4 b4 Qe2 Be6 Qd2 c5 Kc2 Rh8 Qg2 Rhg8 Ng7 R6xg7 hxg7 Qxg7 Qh2 Kc7 Qh6 Qf8 Qxf8 Rxf8 Rh6 
38   +1.01   05:28   3183M  Nge2 Bc8 Nd1 Qc7 Qg2 Bb6 Kb1 Rde8 Be3 g5 Ng3 Rg6 Nf5 Rh8 Rf3 g4 Rg3 Nf6 Bxb6 axb6 Nde3 Rhg8 c4 b4 Qe2 Be6 Qd2 c5 Kc2 Rg5 Rh4 Kb7 Qh2 Bc8 Qh1 R5g6 h7 Rh8 Nd5 Nxd5 cxd5 
39   +1.78   13:45   8340M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kd8 Rg1 Ke7 Nf1 Kf7 Ne3 Kf6 Kd2 Rd8 Ke2 a6 b3 Rd7 c4 Kf7 Kd2 Rd8 Kc2 Rd7 Nd5 g5 Ne3 Kg6 Nf5 bxc4 bxc4 Nf6 Nxd6 a5 Bc5 Bc6 Ra1 Kxh6 Rxa5 
40   +1.80   14:47   8991M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ne3 Ke6 Rf1 d5 exd5+ Bxd5 Bc3 Bc6 Nf5 Bg2 Ng7+ Kd5 Re1 e4 Nf5 Bf3 b4 a6 Kd2 g4 Ke3 exd3 cxd3 Ke6 Nd4+ Kf7 Rg1 Bb7 Rxg4 Nf6 Rg7+ Ke8 Nf5 Rxg7 hxg7 
41   +1.61   15:30   9459M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ne3 Ke6 Kd2 a6 Ra1 Nf6 Rf1 Rh7 Nf5 Ne8 Ke3 Bc8 c3 g4 d4 exd4+ cxd4 d5 Bf8 Kd7 exd5 Bb7 Kf4 Bxd5 Bg7 a5 Kxg4 Nxg7 hxg7 
42   +1.82   17:53  10978M  b4 Bxb4 Qf7 Rh8 Qxg6 Bc8 Nf5 Rd7 Nb1 a5 Be3 Bc5 Bxc5 Qxc5 Nd2 a4 Qg1 Qxg1 Rfxg1 Kc7 Rg7 Nf6 Rhg1 Nh5 R7g5 Nf4 Rg8 Rdh7 Rxh8 Rxh8 Rg7+ Bd7 Nf3 Ne6 Rf7 Nd8 Re7 Ne6 h7 b4 Rf7 Nd8 Rg7 Ne6 Re7 Nc5 Kb1 a3 Rf7 axb2 
43   +1.94   22:02  13618M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ng3 a5 Bxa5 Kf6 Bb4 d5 exd5 Bxd5 Kd2 e4 Ra1 exd3 cxd3 Rc7 Ra6+ Rc6 Ra7 Bf7 d4 Kg6 d5 Bxd5 Rg7+ Kxh6 Nf5+ Kh5 Rxh7+ Kg6 Rd7 Be6 Ne7+ Kh5 Rb7 Rc4 Rxb5 Rd4+ Ke3 
44   +1.95   25:51  15973M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kb6 Bd2 Bc6 Ne2 Rd8 Be3+ Kb7 Rf7+ Rd7 Rg7 Rxg7 hxg7 Nf6 Nc3 Ng8 Nd5 Bd7 Kd2 Be6 c4 bxc4 dxc4 Bh3 Kc3 a5 Bb6 Bg2 Bxa5 Bxe4 b4 g5 b5 g4 Bb4 Bxd5 cxd5 Kc7 Kd3 Kd7 
45   +1.77   26:42  16454M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ Kd8 Bxb4 cxb5 Rg1 Ke7 Nf1 g5 Ng3 a5 Bxa5 Kf6 Bb4 d5 exd5 Bxd5 Kd2 e4 Ra1 exd3 cxd3 Kf7 Ra6 Bg2 Bc3 Re7 Nf5 Re6 Rxe6 Kxe6 Nd4+ Kf6 Nxb5+ Kg6 b4 Kxh6 Nd6 Nf8 b5 Nd7 Bd4 g4 b6 Bc6 Ke2 Kg6 b7 g3 
46   +1.96   28:50  17710M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kc6 Ne2 Bc8 Nc3 g5 Kd2 a6 Nd5 Rb7 c3 Be6 Ra1 Ra7 c4 bxc4 dxc4 Bc8 Rc1 Be6 Kd3 a5 Ra1 a4 Bd2 Ra8 b4 Bxd5 exd5+ Kd7 b5 a3 b6 a2 Ke4 g4 b7 Rb8 Rxa2 Rxb7 Kf5 
47   +1.89   30:00  18399M  b4 Bxb4 
Nodes: 18399022585
Nodes/second: 10221656
Best move: b4
Ponder move: Bxb4
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 3:19 pm

Re: Interesting position, best move b4

Post by kgburcham » Wed Jul 04, 2018 2:42 am



Stockfish

37/45 3:33 +1.13-- 1.Nge2 Bc8 (3.164.303.912) 14844
37/45 3:38 +1.06-- 1.Nge2 Bc8 (3.244.391.373) 14835
37/46 3:49 +1.13++ 1.Nge2 (3.394.186.441) 14818
37/61 5:17 +1.29++ 1.b4 (4.666.688.876) 14690
37/61 5:25 +1.51++ 1.b4 (4.775.619.349) 14692
37/61 5:51 +1.80++ 1.b4 (5.163.316.762) 14671
37/63 8:14 +1.90 1.b4 Bxb4 2.Qf7 Rh8 3.Qxg6 Bc8 4.Nf5 Rd7 5.Nb1 a5 6.Be3 Bc5 7.Bxc5 Qxc5 8.Nd2 a4 9.Kb1 a3 10.Nb3 Qb4 11.d4 axb2 12.Kxb2 Rf8 13.Ra1 c5 14.Nxd6 (7.375.086.002) 14905
38/63 8:25 +1.90 1.b4 Bxb4 2.Qf7 Rh8 3.Qxg6 Bc8 4.Nf5 Rd7 5.Nb1 a5 6.Be3 Bc5 7.Bxc5 Qxc5 8.Nd2 a4 9.Kb1 a3 10.Nb3 Qb4 11.d4 axb2 12.Kxb2 Rf8 13.Ra1 c5 14.Nxd6 (7.527.771.235) 14901
best move: b3-b4 time: 8:25.516 min n/s: 14.901.490 nodes: 7.527.771.235
no chess program was born totally from one mind. all chess programs have many ideas from many minds.

User avatar
MikeB
Posts: 3833
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Interesting position, best move b4

Post by MikeB » Wed Jul 04, 2018 4:18 am

Dann Corbit wrote:
Tue Jul 03, 2018 9:48 pm


infinite: 0 time: 0 increment: 0 moves to go: 0

[snip]
McBrain 9.5

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 36	+1.62 	5.34G	4:48.02	b4 Bxb4 Qf7 Rh8 Qxg6 Bc8 Nf5 Rd7 Be3 Qa5 Nb1 Qd8 Nd2 Nf8 Qg5 Qxg5 Bxg5 Ne6 Be7 a5 c3 Bc5 Nb3 Kc7 Kc2 Bb6 h7 Nf4 Nbd4 exd4 Rxf4 dxc3 Kxc3 Bb7 Rh6 Bc5 d4 Bb4+ Kd3 a4 Rfh4 a3 bxa3 Bxa3 
 36	+1.61!	4.75G	4:15.18	b4! 
 36	+1.50!	4.43G	3:58.58	b4! 
 36	+1.39!	3.86G	3:27.55	b4! 
 36	+1.27!	3.68G	3:17.96	b4! 
 36	+1.16!	3.59G	3:13.40	b4! 
 36	+1.05!	3.44G	3:05.52	b4! 
 36	+0.94!	3.34G	3:00.02	b4! 
 35	+0.82 	2.80G	2:31.57	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Rh8 d4 exd4 Rg7 Rxg7 hxg7 Rg8 Bh6 d3 cxd3 Be6 b4 Bxb4 Nd4 Bd7 Rf7 Kd8 Rf8+ Nxf8 gxf8=Q+ Rxf8 Bxf8 Bc5 Nge2 Ke8 Bh6 a5 Nc2 a4 Kd2 Kf7 d4 Bb6 Bf4 d5 Nc3 Ba5 Kd3 Be6 
 35	+0.93!	2.73G	2:27.45	Qf7! 
 35	+0.83?	2.71G	2:26.69	Qf7 Qc7? 
 34	+0.91 	2.66G	2:23.96	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Rh8 d4 exd4 Rg7 Rxg7 hxg7 Rg8 Bh6 d3 cxd3 Be6 b4 Bxb4 Nd4 Bd7 Rf7 Kd8 Rf8+ Nxf8 gxf8=Q+ Rxf8 Bxf8 Bc5 Nc2 Ke8 Bh6 a5 Kd2 a4 Be3 
 34	+0.82!	2.66G	2:23.77	Qf7! 
 34	+0.71?	2.41G	2:10.39	Nd1 Bc8? 
 34	+0.79?	2.11G	1:54.51	Nd1 Bc8? 
 34	+0.98!	1.67G	1:30.58	Nd1! 
 33	+0.86 	1.02G	0:55.00	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Qa7 Rhg1 Bxe3+ Nxe3 Kb7 Nc3 Rgf8 Kd2 Rg8 Rh1 Kb8 Kc1 Rde8 Ne2 Kc7 Kd2 Kb7 Nc3 Qc5 Rf3 Kb8 Ra1 Qb6 Raf1 Re7 Kc1 g5 
 32	+0.86 	959.3M	0:51.60	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Kb7 Rhg1 Bxe3+ Nxe3 Qa7 Nc3 Rgf8 Kd2 Rg8 Rh1 Kb8 Kc1 Rde8 Ne2 Kc7 Kd2 Kb7 Nc3 Qc5 Rf3 Kb8 Ra1 Qb6 Raf1 Re7 Kc1 g5 Nf5 
 32	+0.96!	821.1M	0:44.04	Nd1! 
 31	+0.84 	592.1M	0:31.60	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rhg1 Bxe3+ Nxe3 Qa7 Nc3 Rgf8 Kd2 g5 Nf5 Qc5 Kc1 Qa7 Ng7 Bd7 Rh1 Kc7 Nf5 Be6 Kd2 Qc5 Ng7 Bd7 Qe3 Qxe3+ Kxe3 Rf6 Ne2 Rdf8 Rxf6 
 30	+0.82 	543.2M	0:28.96	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Kd2 Rgf6 Rg2 d5 Nh5 R6f7 Nhg7 Bd7 Ra1 Kb6 Ke2 Rh8 Ke3 dxe4 dxe4 g4 Rxg4 Nf6 
 29	+0.79 	495.4M	0:26.40	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Rff1 Rgf6 Kd2 Bd7 Ra1 Kb6 c3 d5 Kc2 g4 b4 a4 
 28	+0.79 	486.5M	0:25.92	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Kb7 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Rff1 Rgf6 Kd2 Bd7 Rf2 d5 Rff1 Kb6 Ke2 Kc7 Ke3 
 28	+0.78?	457.9M	0:24.42	Nge2 Bc8? 
 28	+0.86?	406.5M	0:21.70	Nge2 Bc8? 
 27	+0.93 	377.1M	0:20.10	Nge2 Bc8 Nd1 Be6 Qg3 Qa6 Kb1 Bb6 Nf2 Qc8 Be3 Bxe3 Qxe3 c5 Qg3 b4 Nd1 Qa6 Qg2 Bxb3 cxb3 Qxd3+ Kc1 Qxb3 Rh3 Qa2 Kc2 c4 Nc1 Qa1 
 27	+0.91!	367.1M	0:19.54	Nge2! 
 27	+0.76?	361.0M	0:19.20	Nge2 Bc8? 
 27	+0.95!	219.0M	0:11.47	Nge2! 
 26	+0.83 	200.5M	0:10.46	Nge2 Bc8 Nd1 Rdf8 Qg2 Rxf1 Rxf1 Be6 Kb1 b4 Qg3 Qa6 Qe1 Qb6 Ng3 a5 Ne3 Qa7 Nc4 Bh3 Rh1 Be6 Be3 Bxe3 Nxe3 Rf8 Rf1 Rf4 Nc4 Kc7 Qe2 Bxc4 
 26	+0.93!	184.9M	0:09.60	Nge2! 
 26	+0.82!	176.5M	0:09.15	Nge2! 
 26	+0.72?	141.5M	0:07.18	Qf7 Qc7? 
 25	+0.80 	105.8M	0:05.27	Qf7 Qc7 Nd1 Rdf8 Qxc7+ Kxc7 Be3 Bb6 Rfg1 Bc8 Bxb6+ axb6 Ne2 g5 Ne3 Rf2 Kd2 Rg6 Rf1 Rxf1 Nxf1 Rf6 Ne3 Rf3 Rf1 Rxf1 Nxf1 Kd7 Ne3 Ke7 d4 Nf6 d5 Nxe4+ Kd3 Nf2+ Kc3 Ne4+ Kb4 
 24	+0.82 	98.8M  	0:04.92	Qf7 Qc7 Nd1 Bc8 Qxc7+ Kxc7 Ba5+ Bb6 Bxb6+ axb6 Ne2 Rdf8 Rfg1 g5 Ne3 g4 Kd2 Ng5 Rf1 Nf3+ Kc3 Rf7 Ng3 Rh7 Rh5 Kb8 Ngf5 Bxf5 Nxf5 d5 
 24	+0.77?	92.7M  	0:04.62	Nge2 Bc8? 
 23	+0.84 	90.3M  	0:04.50	Nge2 Bc8 Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Ba5+ Bb6 Bxb6+ axb6 Rfg1 g5 Ne3 Rf2 Kd2 Rg6 Rf1 Rxf1 Nxf1 g4 Neg3 Rf6 Ke2 Rf3 Nf5 Be6 Rg1 Bxf5 exf5 
 23	+0.82!	89.6M  	0:04.46	Nge2! 
 23	+0.73?	86.5M  	0:04.31	Nge2 Bc8? 
 22	+0.81 	83.0M  	0:04.13	Nge2 Bc8 Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Ba5+ Bb6 Bxb6+ axb6 Rfg1 g5 Ne3 g4 Ng3 Rf2 Kd1 Be6 Rf1 Rf3 Ngf5 Rh3 Ke2 Kd7 Ra1 Rxh1 Rxh1 Bxf5 exf5 
 22	+0.92!	81.8M  	0:04.07	Nge2! 
 22	+0.82!	61.8M  	0:03.04	Qf7! 
 21	+0.71 	51.4M  	0:02.51	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 b4 Bb6 Rg7 Nf8 Nd1 Kd8 c4 Be8 cxb5 Ne6 Rb7 cxb5 Nc3 Kc8 Re7 Nf4 
 20	+0.72 	46.0M  	0:02.25	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 Nce2 Kd8 Rg7 Nf8 Kb1 Bb6 Bg5+ Kc7 Rf7 Nh7 Bc1 Kd8 Bd2 Kc8 Ka2 Nf8 Rf6 
 19	+1.03 	22.1M  	0:01.10	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Kd8 Rxd7+ Bxd7 Rf7 Rh8 Kd1 Kc8 c4 bxc4 dxc4 Be8 Re7 Kd8 Rg7 Nf6 Kc2 Bb6 
 18	+1.92 	5.82M  	0:00.32	Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Be6 Nc1 Rg8 Qe7 Qc8 Nf5 Qd7 Qxd7 Rxd7 Ng7 
 17	+1.95 	5.63M  	0:00.31	Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qh5 Nh7 Nf5 Be6 Nc1 Qc8 Qg6 Qd7 Ng7 Bg8 Qh5 Kb7 Qf5 Kc8 Qxd7+ Rxd7 Ne2 Kb8 Ng3 Bf7 N3f5 
 16	+1.65 	3.62M  	0:00.20	Qf7 Rh8 Nce2 Bc8 b4 Be3 Qxg6 Nf8 Qf6 Nh7 Qg7 Bxd2+ Kxd2 c5 bxc5 Qxc5 c3 Rdg8 b4 
 15	+1.68 	2.52M  	0:00.14	Qf7 Rh8 Nce2 Bc8 b4 Rdf8 Qg7 Bf2 Qxg6 Qc7 Nh5 Qd8 Ng7 Rf6 Qg2 Bb6 
 14	+1.78 	1.20M  	0:00.07	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 Qxc5 c3 a3 bxa3 Qxa3 Rc1 Qa5 Rc2 
 13	+1.63 	442909	0:00.03	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 Qxc5 
 12	+1.63 	375418	0:00.02	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 
 11	+1.29 	228452	0:00.02	Qf7 Rh8 Nce2 a5 Qxg6 Bc8 Rf7 Rdg8 Qh5 Be3 Bxe3 Qxe3+ Kb1 Rxg3 Nxg3 
 10	+1.21 	146162	0:00.01	Qf7 Rh8 Nce2 b4 Qxg6 Bc8 Rf7 Rdg8 Rxh7 Rxg6 Rxh8 a5 
  9	+1.24 	112978	0:00.01	Qf7 Rh8 Nce2 Rdg8 b4 Qa6 Kb1 Rf8 Qe7 
  8	+0.62 	42502  	0:00.00	Qf7 Rh8 Nce2 Rdg8 Kb1 b4 Bc1 d5 
  7	+2.19 	18539  	0:00.00	Qf7 Rh8 Qxg6 Be3 Nf5 Bxd2+ Kxd2 b4 
  6	+4.45 	9776    	0:00.00	Qf7 Bb4 Qxh7 Bxc3 bxc3 d5 
  5	+4.26 	6905    	0:00.00	Qf7 Be3 Qxh7 b4 Nce2 
  4	+4.31 	4839    	0:00.00	Qf7 a6 Qxh7 d5 Nce2 
  3	+3.95 	3624    	0:00.00	Qf7 d5 Qxh7 
  2	+3.82 	2644    	0:00.00	Qf7 d5 Qxh7 
  1	+0.75 	750      	0:00.00	Nce2 b4 
  0	# 

peter
Posts: 1853
Joined: Sat Feb 16, 2008 6:38 am
Full name: Peter Martan

Re: Interesting position, best move b4

Post by peter » Wed Jul 04, 2018 5:26 am

Dann Corbit wrote:
Tue Jul 03, 2018 9:48 pm

Code: Select all

Searching: 1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0

 1   +0.70   00:00    3494  Nce2 
 ...
 38   +1.01   05:28   3183M  Nge2 Bc8 Nd1 Qc7 Qg2 Bb6 Kb1 Rde8 Be3 g5 Ng3 Rg6 Nf5 Rh8 Rf3 g4 Rg3 Nf6 Bxb6 axb6 Nde3 Rhg8 c4 b4 Qe2 Be6 Qd2 c5 Kc2 Rg5 Rh4 Kb7 Qh2 Bc8 Qh1 R5g6 h7 Rh8 Nd5 Nxd5 cxd5 
39   +1.78   13:45   8340M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kd8 Rg1 Ke7 Nf1 Kf7 Ne3 Kf6 Kd2 Rd8 Ke2 a6 b3 Rd7 c4 Kf7 Kd2 Rd8 Kc2 Rd7 Nd5 g5 Ne3 Kg6 Nf5 bxc4 bxc4 Nf6 Nxd6 a5 Bc5 Bc6 Ra1 Kxh6 Rxa5 
... 
46   +1.96   28:50  17710M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kc6 Ne2 Bc8 Nc3 g5 Kd2 a6 Nd5 Rb7 c3 Be6 Ra1 Ra7 c4 bxc4 dxc4 Bc8 Rc1 Be6 Kd3 a5 Ra1 a4 Bd2 Ra8 b4 Bxd5 exd5+ Kd7 b5 a3 b6 a2 Ke4 g4 b7 Rb8 Rxa2 Rxb7 Kf5 
47   +1.89   30:00  18399M  b4 Bxb4 
Nodes: 18399022585
Nodes/second: 10221656
Best move: b4
Ponder move: Bxb4
Three trials with CorChess: little less than 2 minutes, 2'37" and this one:

Code: Select all

1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - - 0 1

Analysis by CorChess 2.4 280618 64 POPCNT:

1.Qf7 Rh8 2.Nce2 b4 3.Kb1 Rdg8 4.Nc1 
  +/=  (0.54)   Depth: 7/7   00:00:04  38kN
...
1.Qg2 Qc7 2.Qe2 Bc8 3.Be3 Bg4 4.Qd2 Bb6 5.Kb1 Kb7 6.Nge2 Rdf8 7.Bxb6 axb6 8.b4 Qe7 9.d4 Qg5 10.Qd3 Rxf1+ 11.Rxf1 Rf8 12.Rxf8 Nxf8 13.dxe5 Qxe5 
  +/-  (0.72)   Depth: 24/41   00:00:15  215MN
1.Nd1 
  +/-  (0.82 ++)   Depth: 25/40   00:00:19  299MN
...
1.Nd1 Bc8 2.Ne2 Be6 3.Qg3 a5 4.Be3 Bxe3+ 5.Nxe3 Qc5 6.Nc3 Kc7 7.Rf2 Rdf8 8.Rxf8 Rxf8 9.Rf1 Rxf1+ 10.Nxf1 g5 11.Ne3 Qa7 12.Nf5 a4 13.bxa4 bxa4 14.Qe3 Qa5 15.Kd2 Kd7 16.d4 Bxf5 17.exf5 
  +/-  (0.92)   Depth: 27/46   00:00:30  516MN
1.Nd1 Bc8 
  +/-  (0.85 --)   Depth: 28/38   00:00:30  524MN
1.Qf7 
  +/-  (0.95 ++)   Depth: 28/48   00:00:32  559MN
...
1.Qf7 Qc7 2.Qxc7+ Kxc7 3.Rf7+ Rd7 4.Rhf1 Bc8 5.Nce2 Rh8 6.d4 exd4 7.Rg7 Rxg7 8.hxg7 Rg8 9.Bh6 d3 10.cxd3 Be6 11.Kc2 Kd7 12.d4 Bb6 13.Rf8 g5 14.b4 Bd8 15.d5 cxd5 16.Nd4 Nxf8 17.gxf8N+ Rxf8 18.Bxf8 Bf6 19.exd5 Bxd5 20.Nxb5 Be5 21.Nc3 Bf7 22.Nge4 Bg6 23.Kb3 Bf7+ 24.Ka4 
  +/-  (1.03)   Depth: 30/50   00:00:36  630MN
...
1.Qf7 
  +/-  (0.87 ++)   Depth: 31/57   00:00:53  987MN
1.b4 
  +/-  (1.21 ++)   Depth: 31/57   00:00:59  1108MN
...
1.b4 Bxb4 2.Qf7 Qc7 3.Qxc7+ Kxc7 4.Rf7+ Rd7 5.Rhf1 Rgd8 6.Rxd7+ Rxd7 7.Nxb5+ cxb5 8.Bxb4 Kd8 9.Rg1 Ke7 10.Nf1 Kf6 11.Ne3 a6 12.Kd2 Kf7 13.c4 g5 14.b3 Kg6 15.Nf5 Nf6 16.Nxd6 a5 17.Nxb7 Nxe4+ 18.Ke3 axb4 19.Kxe4 Rxb7 20.c5 Rc7 21.Kd5 Kxh6 
  +/-  (1.36)   Depth: 32/56   00:01:30  1734MN
...
1.b4 Bxb4 2.Qf7 Qc7 3.Qxc7+ Kxc7 4.Rf7+ Rd7 5.Rhf1 Rgd8 6.Nxb5+ cxb5 7.Bxb4 Rxf7 8.Rxf7+ Rd7 9.Rf1 Kb6 10.Bd2 Bc6 11.Be3+ Kb7 12.b4 Rd8 13.Ne2 Rf8 14.Rxf8 Nxf8 15.Nc3 Bd7 16.Kd2 Nh7 17.Nd5 Be6 18.Ke2 Bg4+ 19.Kf1 a6 20.Bd2 Bh5 21.Kg2 Kc6 22.Kg3 Kd7 
  +/-  (1.60)   Depth: 36/66   00:03:55  4711MN
...
1.b4 Bxb4 2.Qf7 Qc7 3.Qxc7+ Kxc7 4.Rf7+ Rd7 5.Rhf1 Rgd8 6.Rxd7+ Rxd7 7.Nxb5+ cxb5 8.Bxb4 Kd8 9.Rg1 Ke7 10.Nf1 g5 11.Ng3 a5 12.Bxa5 Kf6 13.Bb4 d5 14.exd5 Bxd5 15.Rf1+ Kg6 16.Re1 e4 17.Nxe4 Kxh6 18.Ng3 Kg6 19.Re5 g4 20.Bd2 Rd8 21.Rh5 Nf6 22.Rg5+ Kf7 23.Nf5 Ke6 24.Nh6 Ra8 25.Bc3 Ra1+ 26.Kd2 
  +-  (1.63)   Depth: 38/60   00:06:14  7607MN
H6.03 Tactical1 almost at once.
Peter.

User avatar
Eelco de Groot
Posts: 4215
Joined: Sun Mar 12, 2006 1:40 am
Location: Groningen

Re: Interesting position, best move b4

Post by Eelco de Groot » Wed Jul 04, 2018 9:31 pm

Dann Corbit wrote:
Tue Jul 03, 2018 9:48 pm

Code: Select all

Searching: 1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0

 1   +0.70   00:00    3494  Nce2 
 2   +0.90   00:00   23739  Kb1 a5 Qf7 
 3   +0.98   00:00   44842  Kb1 a5 Qf7 Rh8 
 4   +1.02   00:00   64612  Qe2 Bc8 Rf7 Rd7 
 5   +0.98   00:00   85305  Qg2 Rh8 Rf7 Rdf8 Rhf1 
 6   +1.02   00:00  106269  Qg2 Rdf8 Rxf8+ Rxf8 Nge2 g5 Rf1 
 7   +0.86   00:00  129456  Nce2 a5 Qf7 Rh8 Qxg6 Rdg8 Qh5 
 8   +1.33   00:00  158289  Qf7 Rh8 Nce2 b4 Kb1 a5 Qe7 Rde8 
 9   +1.34   00:00  196820  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Be3 Rf7 Bxd2+ Kxd2 Bc8 Qf3 Be6 
10   +1.56   00:00  248372  Qf7 Rh8 Nce2 Be3 Bxe3 Qxe3+ Kb1 Qg5 b4 d5 Qe6 Rdf8 Rxf8+ Rxf8 
11   +1.71   00:00  285187  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Qd8 Kb1 Bc8 Rf7 Ng5 
12   +1.67   00:00  359419  Qf7 Rh8 Nce2 g5 Qh5 Rd7 b4 Qa6 Kb1 Bb6 Qg6 Qa4 Nf5 
13   +1.79   00:00  462520  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 Ng5 Rf5 
14   +1.83   00:00  793295  Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 Qd8 Kb1 Bc8 Rf7 Ng5 Bxg5 Rxg5 Qh4 Be6 Rg7 
15   +2.00   00:00   1268K  Qf7 Rh8 Nce2 Bc8 b4 Rdf8 Qxg6 Qa6 Kb1 Rfg8 Qh5 Be6 b3 Bb6 Nf5 Qa3 Nxd6 Bxb3 cxb3 Qxb3+ Kc1 
16   +2.01   00:00   1656K  Qf7 Rh8 Nce2 Bc8 b4 Be3 Qxg6 Nf8 Qf6 Nh7 Qh4 a5 bxa5 Bxd2+ Kxd2 Qxa5+ Nc3 Qc7 Nf5 b4 Na4 Rdf8 
17   +1.92   00:00   4215K  Qf7 Rh8 Nce2 g5 Kb1 Bc8 Qh5 Rdf8 Rxf8 Rxf8 Bxg5 Qc7 Bd2 Qf7 Qxf7 Rxf7 Rf1 Rxf1+ Nxf1 Bg4 Nc1 
18   +1.98   00:00   5200K  Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Ne6 Qf6 Rdg8 Nf5 Bd8 Qf7 Rg2 Re1 Nf8 Qa2 Qxa2+ Kxa2 Be6+ Kb1 d5 Ne3 
19   +1.85   00:00   7150K  Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Ne6 Qf6 Rdg8 Nf5 Bd8 Qf7 Rg2 Re1 Nf8 Qa2 Qxa2+ Kxa2 Be6+ Ka1 Bb6 Nxd6 Bg4 
20   +1.90   00:00   8678K  Qf7 Rh8 Nce2 Rdg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Rf7 Qxe7 Rxe7 Bc8 d4 Ng5 d5 cxd5 exd5 Bh3 Ra1 Bg2 Raxa7 Bxd5 h7 Rd8 Kc1 
21   +1.60   00:01  10643K  Qf7 Rh8 Nce2 Rdg8 Qe7 Re8 Qg7 Reg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Qxd8+ Rxd8 Rf7 Bc8 Rg7 Rdg8 d4 Ng5 dxe5 dxe5 Rxg8 Rxg8 Nc1 Rh8 Nd3 Bh3 
22   +1.56   00:01  11271K  Qf7 Rh8 Nce2 Rdg8 b4 Be3 Qe7 Bxd2+ Kxd2 Qd8 Qxd8+ Rxd8 Rf7 Bc8 d4 Rdg8 Re7 Ng5 d5 cxd5 exd5 Bg4 h7 Rf8 Nc3 Bf3 Rh2 
23   +0.94   00:03  41174K  Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 Nce2 Kd8 d4 exd4 b4 Bb6 Bf4 Nf8 Bg5+ Kc8 Bf6 Be6 Re7 Rxh6 Re8+ Kd7 Rxf8 Rh3 e5 Bd5 exd6 Kxd6 Ra8 c5 bxc5+ Kxc5 Rc8+ Kd6 
24   +0.87   00:04  53121K  Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Be3 Bb6 Ne2 Bc8 Kd2 Rxf1 Rxf1 Be6 d4 g5 d5 cxd5 exd5 Bxd5 Nec3 Be6 Nxb5+ Kc6 Nxa7+ Bxa7 Bxa7 Rg6 Rh1 g4 
25   +0.86   00:10 115938K  Qf7 Qc7 b4 Bb6 Qb3 Rge8 Rf7 Rd7 Rhf1 d5 R7f3 a6 Nce2 Qd6 Qa3 Qe6 Kb1 Bc8 Be3 Bxe3 Rxe3 Ng5 exd5 cxd5 d4 e4 Nf4 Qg8 Nge2 Nf3 Rf2 
26   +0.80   00:12 133443K  Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nd1 Rh8 Ne2 Bb6 c4 bxc4 bxc4 Kd8 Nec3 Ke8 R7f3 Rf8 Rxf8+ Nxf8 b4 Rf7 Rh1 Ke7 b5 cxb5 Nd5+ Ke8 cxb5 Bg4 
27   +0.92   00:14 152297K  Qf7 Qc7 b4 Bb6 Qb3 Rge8 Rf7 Rd7 Rhf1 d5 R7f3 a6 Nce2 g5 Kb1 Qd6 Nf5 Qg6 Neg3 Bc8 Qc3 g4 R3f2 Rc7 Nh4 Qe6 Re2 d4 Qa3 Rf7 Nhf5 Ref8 Ref2 
28   +0.97   00:30 309571K  Nge2 Bc8 Nd1 Be6 Be3 Bxe3+ Nxe3 a5 Qg3 Qc5 Ng4 Bxb3 Nc3 b4 cxb3 bxc3 Qg1 Qxg1 Rhxg1 cxb2+ Kxb2 Rdf8 Ra1 Rh8 Rxa5 Nf6 Ne3 Rxh6 Rga1 Rc8 Nc4 Kc7 Ra7+ Kd8 Nxd6 Rc7 Kc3 
29   +0.91   00:46 469102K  Nge2 Bc8 Nd1 a5 Be3 Be6 Qg3 Qa7 Rhg1 Bxe3+ Nxe3 Kb7 Kd2 Qc5 Nc3 Rc8 Rf3 Rc7 Kc1 Kb8 Qf2 Qa7 Rh1 Qc5 Nf1 Qxf2 Rxf2 Rcc8 Kd2 g5 Ne2 Rcf8 Rxf8+ Rxf8 Nfg3 Rf6 d4 Bg4 
30   +0.85   00:56 568403K  Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Qa7 Bxc5 Qxc5 Kb1 a4 bxa4 bxa4 Qf2 Qxf2 Rxf2 Kc7 Rhf1 g5 Ne3 Rg6 Rh1 g4 Ng3 Rh8 Kc1 Ng5 Ngf5 Rh7 Nxg4 
31   +0.95   01:17 786093K  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 Rh8 Rxg3 Rh2 Rg6 Kc7 b4 Rf2 Rh6 Rf3 Rh7+ Kb6 Kd2 Be6 Re7 
32   +0.95   01:35 957935K  Nge2 Qc7 Nd1 Bc8 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 d5 exd5 cxd5 d4 Be6 Rg6 Re8 Kd2 Kc7 Kc3 Rg8 Rxe6 g2 Nxg2 Rxg2 Ra6 Rg3+ Kb4 Rg2 Kxb5 Rxc2 Rxa7+ Kd6 
33   +0.88   02:02   1209M  Nge2 Qc7 Qg3 g5 Kb1 Bb6 Nd1 Rg6 Ne3 Rh8 Nf5 Qd7 Rh5 Bc8 Qe1 Qc7 Neg3 Rhg8 b4 Nf6 Rhh1 d5 Qd1 Rh8 Qc1 Rhg8 Qe1 Rf8 Be3 d4 Bd2 Rh8 Qd1 Qh7 Qe2 Be6 
34   +0.95   02:35   1528M  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 a5 Rxg3 Kc7 Rg7+ Rd7 Rxd7+ Kxd7 Kd2 Ke6 d4 c5 Kd3 cxd4 Kxd4 Bd7 Nd5 Bc6 b4 axb4 Nxb4 Bb7 Nd5 Bc6 b4 Kf7 c4 
35   +0.93   03:16   1912M  Nge2 Bc8 Nd1 Qc7 Be3 Bxe3+ Nxe3 Ng5 Qg3 Ne6 Rf6 Qe7 Rxg6 Nf4 Nxf4 exf4 h7 Qxh7 Rxh7 fxg3 Rhg7 Rxg7 Rxg7 a5 Rxg3 Kc7 Rg7+ Rd7 Rxd7+ Kxd7 Kd2 Ke6 d4 c5 Kd3 Bb7 Nd1 cxd4 Kxd4 Kf6 Ne3 Bc6 Nd5+ Kf7 b4 axb4 Nxb4 Bb7 
36   +1.01   03:38   2124M  Nge2 Bc8 Nd1 Qc7 Kb1 Rdf8 Qg3 Rxf1 Rxf1 Qe7 b4 Bb6 b3 g5 Ne3 Rg6 Qh2 Nf6 Ng3 Qh7 Nef5 d5 Qe2 d4 Rh1 Bc7 Qg2 Bd7 Kb2 Ng8 Rh5 Bd8 Qe2 Bc8 Rh1 Nf6 Qg2 Be6 Ne2 
37   +1.01   04:52   2832M  Nge2 Bc8 Nd1 Qc7 Qg2 Bb6 Kb1 Rde8 Be3 g5 Ng3 Rg6 Nf5 Rh8 Rf3 g4 Rg3 Nf6 Bxb6 axb6 Nde3 Rhg8 c4 b4 Qe2 Be6 Qd2 c5 Kc2 Rh8 Qg2 Rhg8 Ng7 R6xg7 hxg7 Qxg7 Qh2 Kc7 Qh6 Qf8 Qxf8 Rxf8 Rh6 
38   +1.01   05:28   3183M  Nge2 Bc8 Nd1 Qc7 Qg2 Bb6 Kb1 Rde8 Be3 g5 Ng3 Rg6 Nf5 Rh8 Rf3 g4 Rg3 Nf6 Bxb6 axb6 Nde3 Rhg8 c4 b4 Qe2 Be6 Qd2 c5 Kc2 Rg5 Rh4 Kb7 Qh2 Bc8 Qh1 R5g6 h7 Rh8 Nd5 Nxd5 cxd5 
39   +1.78   13:45   8340M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kd8 Rg1 Ke7 Nf1 Kf7 Ne3 Kf6 Kd2 Rd8 Ke2 a6 b3 Rd7 c4 Kf7 Kd2 Rd8 Kc2 Rd7 Nd5 g5 Ne3 Kg6 Nf5 bxc4 bxc4 Nf6 Nxd6 a5 Bc5 Bc6 Ra1 Kxh6 Rxa5 
40   +1.80   14:47   8991M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ne3 Ke6 Rf1 d5 exd5+ Bxd5 Bc3 Bc6 Nf5 Bg2 Ng7+ Kd5 Re1 e4 Nf5 Bf3 b4 a6 Kd2 g4 Ke3 exd3 cxd3 Ke6 Nd4+ Kf7 Rg1 Bb7 Rxg4 Nf6 Rg7+ Ke8 Nf5 Rxg7 hxg7 
41   +1.61   15:30   9459M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ne3 Ke6 Kd2 a6 Ra1 Nf6 Rf1 Rh7 Nf5 Ne8 Ke3 Bc8 c3 g4 d4 exd4+ cxd4 d5 Bf8 Kd7 exd5 Bb7 Kf4 Bxd5 Bg7 a5 Kxg4 Nxg7 hxg7 
42   +1.82   17:53  10978M  b4 Bxb4 Qf7 Rh8 Qxg6 Bc8 Nf5 Rd7 Nb1 a5 Be3 Bc5 Bxc5 Qxc5 Nd2 a4 Qg1 Qxg1 Rfxg1 Kc7 Rg7 Nf6 Rhg1 Nh5 R7g5 Nf4 Rg8 Rdh7 Rxh8 Rxh8 Rg7+ Bd7 Nf3 Ne6 Rf7 Nd8 Re7 Ne6 h7 b4 Rf7 Nd8 Rg7 Ne6 Re7 Nc5 Kb1 a3 Rf7 axb2 
43   +1.94   22:02  13618M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Nxb5+ cxb5 Bxb4 Rxf7 Rxf7+ Rd7 Rf1 Kd8 Rg1 Ke7 Nf1 g5 Ng3 a5 Bxa5 Kf6 Bb4 d5 exd5 Bxd5 Kd2 e4 Ra1 exd3 cxd3 Rc7 Ra6+ Rc6 Ra7 Bf7 d4 Kg6 d5 Bxd5 Rg7+ Kxh6 Nf5+ Kh5 Rxh7+ Kg6 Rd7 Be6 Ne7+ Kh5 Rb7 Rc4 Rxb5 Rd4+ Ke3 
44   +1.95   25:51  15973M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kb6 Bd2 Bc6 Ne2 Rd8 Be3+ Kb7 Rf7+ Rd7 Rg7 Rxg7 hxg7 Nf6 Nc3 Ng8 Nd5 Bd7 Kd2 Be6 c4 bxc4 dxc4 Bh3 Kc3 a5 Bb6 Bg2 Bxa5 Bxe4 b4 g5 b5 g4 Bb4 Bxd5 cxd5 Kc7 Kd3 Kd7 
45   +1.77   26:42  16454M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ Kd8 Bxb4 cxb5 Rg1 Ke7 Nf1 g5 Ng3 a5 Bxa5 Kf6 Bb4 d5 exd5 Bxd5 Kd2 e4 Ra1 exd3 cxd3 Kf7 Ra6 Bg2 Bc3 Re7 Nf5 Re6 Rxe6 Kxe6 Nd4+ Kf6 Nxb5+ Kg6 b4 Kxh6 Nd6 Nf8 b5 Nd7 Bd4 g4 b6 Bc6 Ke2 Kg6 b7 g3 
46   +1.96   28:50  17710M  b4 Bxb4 Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Rd8 Rxd7+ Rxd7 Nxb5+ cxb5 Bxb4 Kc6 Ne2 Bc8 Nc3 g5 Kd2 a6 Nd5 Rb7 c3 Be6 Ra1 Ra7 c4 bxc4 dxc4 Bc8 Rc1 Be6 Kd3 a5 Ra1 a4 Bd2 Ra8 b4 Bxd5 exd5+ Kd7 b5 a3 b6 a2 Ke4 g4 b7 Rb8 Rxa2 Rxb7 Kf5 
47   +1.89   30:00  18399M  b4 Bxb4 
Nodes: 18399022585
Nodes/second: 10221656
Best move: b4
Ponder move: Bxb4
For some reason, I'm not getting this one, or it seems to get it, almost, but then loses a lot of the score in the main variation. After a long while it sees that 4...Qa6 and 4...Qa5 are pretty bad, but the score for 4...Bc8 has gone up again. This is with slightly different leading moves after feeding it 1. b4 Bxb4.

1. b4 Bxb4 2. Qf7 Rh8 3. Qxg6 Rdg8 4. Qg7

Then the two best moves, (where 4...Qa6 and 4...Qa5 should be the same):




Engine: Kaissa III (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

49 1076:43+1.27 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7
8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8
11.Rh1 Qf7 12.Rh8 Ka6 13.Kb1 Ka5
14.Nh6 Qf1+ 15.Bc1 Bxc3 16.bxc3 Ba2+
17.Kb2 (150.994.796.730) 2337

49 1076:43+2.59 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+
7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7
10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4
13.c4 bxc4 14.dxc4 Rxg7 15.Rxg7 Qxh6
16.Rg8 Qe3 17.Kc2 (150.994.796.730) 2337

1.27 is not as high as some other moves so in that case 1. b4 would not give the highest score in the starting position :?

At half time it was different:

-----
44 438:11 +1.87 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rh8 Rxg7 9.Nxg7 Qxg7 10.Rff8 Qg1+ 11.Nd1 Bxd2+ 12.Kxd2 Kb7 13.Rh7+ Kb8 14.Nf2 Qg5+ 15.Ke2 Qc1 16.Rhh8 Qxc2+ 17.Kf3 Qxb2 (57.721.800.481) 2195
44 438:11 +1.96 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Rxg7 9.hxg7 Rg8 10.Rxh7 Qd8 11.Nd2 Bc8 12.Nh6 Qh4 13.c3 Qh2 14.Kc2 Kc7 15.Nxg8 Qxh7 16.Rf7+ Kb6 17.Ne7 (57.721.800.481) 2195
-----
45 499:05 +0.91 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rh8 Rxg7 9.Nxg7 Qxg7 10.Rff8 Kb7 11.Rxc8 Qg1+ 12.Nd1 Bxd2+ 13.Kxd2 Qg2+ 14.Kc3 Qe2 15.Rb8+ Kc7 16.Rhc8+ Kd7 17.Rf8 Qxd1 (67.307.383.989) 2247
44 499:05 +1.96 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Rxg7 9.hxg7 Rg8 10.Rxh7 Qd8 11.Nd2 Bc8 12.Nh6 Qh4 13.c3 Qh2 14.Kc2 Kc7 15.Nxg8 Qxh7 16.Rf7+ Kb6 17.Ne7 (67.307.383.989) 2247
-----
45 515:51 +0.91 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rh8 Rxg7 9.Nxg7 Qxg7 10.Rff8 Kb7 11.Rxc8 Qg1+ 12.Nd1 Bxd2+ 13.Kxd2 Qg2+ 14.Kc3 Qe2 15.Rb8+ Kc7 16.Rhc8+ Kd7 17.Rf8 Qxd1 (69.547.685.430) 2246
45 515:51 +2.03 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Rxg7 9.hxg7 Rg8 10.Rxh7 Qd8 11.Nd2 Bc8 12.Nh6 Qh4 13.c3 c5 14.Rf8 Qh1+ 15.Kc2 Rxg7 (69.547.685.430) 2246
-----
46 523:00 +0.91 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rh8 Rxg7 9.Nxg7 Qxg7 10.Rff8 Kb7 11.Rxc8 Qg1+ 12.Nd1 Bxd2+ 13.Kxd2 Qg2+ 14.Kc3 Qe2 15.Rb8+ Kc7 16.Rhc8+ Kd7 17.Rd8+ Kc7 (70.604.168.879) 2249
45 523:00 +2.03 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Rxg7 9.hxg7 Rg8 10.Rxh7 Qd8 11.Nd2 Bc8 12.Nh6 Qh4 13.c3 c5 14.Rf8 Qh1+ 15.Kc2 Rxg7 (70.604.168.879) 2249
-----
46 870:59 +0.91 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rh8 Rxg7 9.Nxg7 Qxg7 10.Rff8 Kb7 11.Rxc8 Qg1+ 12.Nd1 Bxd2+ 13.Kxd2 Qg2+ 14.Kc3 Qe2 15.Rb8+ Kc7 16.Rhc8+ Kd7 17.Rd8+ Kc7 (120.631.897.743) 2308
46 870:59 +2.70 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c4 Qh2 14.Kc2 Rxg7 15.Rxg7 Qxh6 16.Rg8 Qe6 17.Rff8 Kb7 (120.631.897.743) 2308
-----
47 896:27 +1.12 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 13.Nd1 Bxd2+ 14.Kxd2 d5 15.Nf2 Ka5 16.Ng4 dxe4 17.Ngh6 Qg6 (124.115.659.349) 2307
46 896:27 +2.70 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c4 Qh2 14.Kc2 Rxg7 15.Rxg7 Qxh6 16.Rg8 Qe6 17.Rff8 Kb7 (124.115.659.349) 2307
-----
47 922:22 +1.12 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 13.Nd1 Bxd2+ 14.Kxd2 d5 15.Nf2 Ka5 16.Ng4 dxe4 17.Ngh6 Qg6 (127.791.887.785) 2309
47 922:22 +2.50 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c3 Rxg7 14.Rxg7 Qxh6 15.Rg8 Qe6 16.Rff8 a5 17.Rxc8+ Qxc8 (127.791.887.785) 2309
-----
48 951:46 +1.12 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Kb6 13.Nd5+ cxd5 14.Bxb4 dxe4 15.dxe4 d5 16.Rh6+ Kc7 17.Ba5+ Kb8 (132.533.795.768) 2320
47 951:46 +2.50 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c3 Rxg7 14.Rxg7 Qxh6 15.Rg8 Qe6 16.Rff8 a5 17.Rxc8+ Qxc8 (132.533.795.768) 2320
-----
48 987:21 +1.12 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Kb6 13.Nd5+ cxd5 14.Bxb4 dxe4 15.dxe4 d5 16.Rh6+ Kc7 17.Ba5+ Kb8 (137.814.422.228) 2326
48 987:21 +2.50 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c3 Rxg7 14.Rxg7 Qxh6 15.Rg8 a5 16.Rff8 Qe6 17.Rxc8+ Qxc8 (137.814.422.228) 2326
-----
49 1017:38 +1.27 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 13.Kb1 Ka5 14.Nh6 Qf1+ 15.Bc1 Bxc3 16.bxc3 Ba2+ 17.Kb2 (142.702.074.664) 2337
48 1017:38 +2.50 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c3 Rxg7 14.Rxg7 Qxh6 15.Rg8 a5 16.Rff8 Qe6 17.Rxc8+ Qxc8 (142.702.074.664) 2337
-----
49 1076:43 +1.27 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 13.Kb1 Ka5 14.Nh6 Qf1+ 15.Bc1 Bxc3 16.bxc3 Ba2+ 17.Kb2 (150.994.796.730) 2337
49 1076:43 +2.59 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c4 bxc4 14.dxc4 Rxg7 15.Rxg7 Qxh6 16.Rg8 Qe3 17.Kc2 (150.994.796.730) 2337


Much thanks for the diagrams Harm and the return of the pgn code Sam!
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

peter
Posts: 1853
Joined: Sat Feb 16, 2008 6:38 am
Full name: Peter Martan

Re: Interesting position, best move b4

Post by peter » Thu Jul 05, 2018 5:28 am

Hi Eelco!
Eelco de Groot wrote:
Wed Jul 04, 2018 9:31 pm
1. b4 Bxb4 2. Qf7 Rh8 3. Qxg6 Rdg8 4. Qg7

Then the two best moves, (where 4...Qa6 and 4...Qa5 should be the same):




Engine: Kaissa III (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

-----
49 1076:43 +1.27 4...Bc8 5.Nf5 Rxg7 6.hxg7 Rg8 7.Rxh7 Qc7 8.Rg1 Be6 9.Rh8 Kb7 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 13.Kb1 Ka5 14.Nh6 Qf1+ 15.Bc1 Bxc3 16.bxc3 Ba2+ 17.Kb2 (150.994.796.730) 2337
49 1076:43 +2.59 4...Qa6 5.Nb1 Bxd2+ 6.Nxd2 Qa1+ 7.Nb1 Qa5 8.Nf5 Qd8 9.Nd2 Rxg7 10.hxg7 Rg8 11.Rxh7 Bc8 12.Nh6 Qh4 13.c4 bxc4 14.dxc4 Rxg7 15.Rxg7 Qxh6 16.Rg8 Qe3 17.Kc2 (150.994.796.730) 2337
At Kaissa's output- line after 4...Bc8 9.Rh8 seems suboptimal, 9.Nh6 instead lets evals rise. But even after 10.Rxg8 Bxg8 11.Rh1 Qf7 12.Rh8 Ka6 it should be at about +5, 13.Kb1? there has to be replaced with 13.Nd1.And yet at the very end it's about +7 again anyhow.
Big discrepancy between eval at end and start of output- line with many ups and downs along the road shows the engine is in doubt very much about its pv.
Peter.

User avatar
Eelco de Groot
Posts: 4215
Joined: Sun Mar 12, 2006 1:40 am
Location: Groningen

Re: Interesting position, best move b4

Post by Eelco de Groot » Thu Jul 05, 2018 10:09 am

Hi Peter, thanks for looking at it!

There must be something wrong, like a minus sign that should not be there, but I dont think I changed anything. But Kaissa seems to choose suboptimal moves in later variations at least that is what it looks like.

Now it was much clearer plus again:

[Event "?"]
[Site "?"]
[Date "2018.07.05"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1k1r2r1/pb5n/1qpp2pP/1pb1p3/4P3/1PNP1QN1/1PPB4/2K2R1R w - -"]

1. b4 Bxb4 2. Qf7 Rh8 3. Qxg6 Rdg8 4. Qg7 Bc8 5. Nf5 Rxg7
6. hxg7 Rg8 7. Rxh7 Qc7 8. Rg1 Be6 *


-----
42 47:25 +3.83 9.Nh6 Qa5 10.Kd1 Qa1+ 11.Bc1 Bc5 12.Nxg8 Bxg1 13.Ne7 Be3 14.Nxc6+ Kc8 15.Ne2 a5 16.d4 exd4 17.Ncxd4 Bxc1 18.Nxc1 Bc4 19.Nxb5 Kd8 20.Nxd6 Be6 21.Rh8+ Kd7 22.Nb7 (7.184.259.402) 2524
41 47:25 +2.29 9.Be3 Qa5 10.Ne7 Qa1+ 11.Kd2 Qxb2 12.Nxc6+ Kb7 13.Nxb4 Qxb4 14.Rh6 Ba2 15.Rh8 a6 16.Rxg8 Bxg8 17.Rf1 Qb2 18.Rf8 b4 19.Rxg8 Qxc3+ 20.Kd1 (7.184.259.402) 2524
-----
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

User avatar
MikeB
Posts: 3833
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Interesting position, best move b4

Post by MikeB » Wed Jul 18, 2018 4:54 am

MikeB wrote:
Wed Jul 04, 2018 4:18 am
Dann Corbit wrote:
Tue Jul 03, 2018 9:48 pm


infinite: 0 time: 0 increment: 0 moves to go: 0

[snip]
McBrain 9.5

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 36	+1.62 	5.34G	4:48.02	b4 Bxb4 Qf7 Rh8 Qxg6 Bc8 Nf5 Rd7 Be3 Qa5 Nb1 Qd8 Nd2 Nf8 Qg5 Qxg5 Bxg5 Ne6 Be7 a5 c3 Bc5 Nb3 Kc7 Kc2 Bb6 h7 Nf4 Nbd4 exd4 Rxf4 dxc3 Kxc3 Bb7 Rh6 Bc5 d4 Bb4+ Kd3 a4 Rfh4 a3 bxa3 Bxa3 
 36	+1.61!	4.75G	4:15.18	b4! 
 36	+1.50!	4.43G	3:58.58	b4! 
 36	+1.39!	3.86G	3:27.55	b4! 
 36	+1.27!	3.68G	3:17.96	b4! 
 36	+1.16!	3.59G	3:13.40	b4! 
 36	+1.05!	3.44G	3:05.52	b4! 
 36	+0.94!	3.34G	3:00.02	b4! 
 35	+0.82 	2.80G	2:31.57	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Rh8 d4 exd4 Rg7 Rxg7 hxg7 Rg8 Bh6 d3 cxd3 Be6 b4 Bxb4 Nd4 Bd7 Rf7 Kd8 Rf8+ Nxf8 gxf8=Q+ Rxf8 Bxf8 Bc5 Nge2 Ke8 Bh6 a5 Nc2 a4 Kd2 Kf7 d4 Bb6 Bf4 d5 Nc3 Ba5 Kd3 Be6 
 35	+0.93!	2.73G	2:27.45	Qf7! 
 35	+0.83?	2.71G	2:26.69	Qf7 Qc7? 
 34	+0.91 	2.66G	2:23.96	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Rh8 d4 exd4 Rg7 Rxg7 hxg7 Rg8 Bh6 d3 cxd3 Be6 b4 Bxb4 Nd4 Bd7 Rf7 Kd8 Rf8+ Nxf8 gxf8=Q+ Rxf8 Bxf8 Bc5 Nc2 Ke8 Bh6 a5 Kd2 a4 Be3 
 34	+0.82!	2.66G	2:23.77	Qf7! 
 34	+0.71?	2.41G	2:10.39	Nd1 Bc8? 
 34	+0.79?	2.11G	1:54.51	Nd1 Bc8? 
 34	+0.98!	1.67G	1:30.58	Nd1! 
 33	+0.86 	1.02G	0:55.00	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Qa7 Rhg1 Bxe3+ Nxe3 Kb7 Nc3 Rgf8 Kd2 Rg8 Rh1 Kb8 Kc1 Rde8 Ne2 Kc7 Kd2 Kb7 Nc3 Qc5 Rf3 Kb8 Ra1 Qb6 Raf1 Re7 Kc1 g5 
 32	+0.86 	959.3M	0:51.60	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Kb7 Rhg1 Bxe3+ Nxe3 Qa7 Nc3 Rgf8 Kd2 Rg8 Rh1 Kb8 Kc1 Rde8 Ne2 Kc7 Kd2 Kb7 Nc3 Qc5 Rf3 Kb8 Ra1 Qb6 Raf1 Re7 Kc1 g5 Nf5 
 32	+0.96!	821.1M	0:44.04	Nd1! 
 31	+0.84 	592.1M	0:31.60	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rhg1 Bxe3+ Nxe3 Qa7 Nc3 Rgf8 Kd2 g5 Nf5 Qc5 Kc1 Qa7 Ng7 Bd7 Rh1 Kc7 Nf5 Be6 Kd2 Qc5 Ng7 Bd7 Qe3 Qxe3+ Kxe3 Rf6 Ne2 Rdf8 Rxf6 
 30	+0.82 	543.2M	0:28.96	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Kd2 Rgf6 Rg2 d5 Nh5 R6f7 Nhg7 Bd7 Ra1 Kb6 Ke2 Rh8 Ke3 dxe4 dxe4 g4 Rxg4 Nf6 
 29	+0.79 	495.4M	0:26.40	Nge2 Bc8 Nd1 Be6 Qg3 Kb7 Be3 a5 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Rff1 Rgf6 Kd2 Bd7 Ra1 Kb6 c3 d5 Kc2 g4 b4 a4 
 28	+0.79 	486.5M	0:25.92	Nge2 Bc8 Nd1 Be6 Be3 a5 Qg3 Kb7 Rf2 g5 Bxc5 Qxc5 Qe3 Qxe3+ Nxe3 Rdf8 Nf5 Kc7 Neg3 Rg6 Rff1 Rgf6 Kd2 Bd7 Rf2 d5 Rff1 Kb6 Ke2 Kc7 Ke3 
 28	+0.78?	457.9M	0:24.42	Nge2 Bc8? 
 28	+0.86?	406.5M	0:21.70	Nge2 Bc8? 
 27	+0.93 	377.1M	0:20.10	Nge2 Bc8 Nd1 Be6 Qg3 Qa6 Kb1 Bb6 Nf2 Qc8 Be3 Bxe3 Qxe3 c5 Qg3 b4 Nd1 Qa6 Qg2 Bxb3 cxb3 Qxd3+ Kc1 Qxb3 Rh3 Qa2 Kc2 c4 Nc1 Qa1 
 27	+0.91!	367.1M	0:19.54	Nge2! 
 27	+0.76?	361.0M	0:19.20	Nge2 Bc8? 
 27	+0.95!	219.0M	0:11.47	Nge2! 
 26	+0.83 	200.5M	0:10.46	Nge2 Bc8 Nd1 Rdf8 Qg2 Rxf1 Rxf1 Be6 Kb1 b4 Qg3 Qa6 Qe1 Qb6 Ng3 a5 Ne3 Qa7 Nc4 Bh3 Rh1 Be6 Be3 Bxe3 Nxe3 Rf8 Rf1 Rf4 Nc4 Kc7 Qe2 Bxc4 
 26	+0.93!	184.9M	0:09.60	Nge2! 
 26	+0.82!	176.5M	0:09.15	Nge2! 
 26	+0.72?	141.5M	0:07.18	Qf7 Qc7? 
 25	+0.80 	105.8M	0:05.27	Qf7 Qc7 Nd1 Rdf8 Qxc7+ Kxc7 Be3 Bb6 Rfg1 Bc8 Bxb6+ axb6 Ne2 g5 Ne3 Rf2 Kd2 Rg6 Rf1 Rxf1 Nxf1 Rf6 Ne3 Rf3 Rf1 Rxf1 Nxf1 Kd7 Ne3 Ke7 d4 Nf6 d5 Nxe4+ Kd3 Nf2+ Kc3 Ne4+ Kb4 
 24	+0.82 	98.8M  	0:04.92	Qf7 Qc7 Nd1 Bc8 Qxc7+ Kxc7 Ba5+ Bb6 Bxb6+ axb6 Ne2 Rdf8 Rfg1 g5 Ne3 g4 Kd2 Ng5 Rf1 Nf3+ Kc3 Rf7 Ng3 Rh7 Rh5 Kb8 Ngf5 Bxf5 Nxf5 d5 
 24	+0.77?	92.7M  	0:04.62	Nge2 Bc8? 
 23	+0.84 	90.3M  	0:04.50	Nge2 Bc8 Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Ba5+ Bb6 Bxb6+ axb6 Rfg1 g5 Ne3 Rf2 Kd2 Rg6 Rf1 Rxf1 Nxf1 g4 Neg3 Rf6 Ke2 Rf3 Nf5 Be6 Rg1 Bxf5 exf5 
 23	+0.82!	89.6M  	0:04.46	Nge2! 
 23	+0.73?	86.5M  	0:04.31	Nge2 Bc8? 
 22	+0.81 	83.0M  	0:04.13	Nge2 Bc8 Qf7 Qc7 Qxc7+ Kxc7 Nd1 Rdf8 Ba5+ Bb6 Bxb6+ axb6 Rfg1 g5 Ne3 g4 Ng3 Rf2 Kd1 Be6 Rf1 Rf3 Ngf5 Rh3 Ke2 Kd7 Ra1 Rxh1 Rxh1 Bxf5 exf5 
 22	+0.92!	81.8M  	0:04.07	Nge2! 
 22	+0.82!	61.8M  	0:03.04	Qf7! 
 21	+0.71 	51.4M  	0:02.51	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 b4 Bb6 Rg7 Nf8 Nd1 Kd8 c4 Be8 cxb5 Ne6 Rb7 cxb5 Nc3 Kc8 Re7 Nf4 
 20	+0.72 	46.0M  	0:02.25	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Rxd7+ Bxd7 Rf7 Rh8 Nce2 Kd8 Rg7 Nf8 Kb1 Bb6 Bg5+ Kc7 Rf7 Nh7 Bc1 Kd8 Bd2 Kc8 Ka2 Nf8 Rf6 
 19	+1.03 	22.1M  	0:01.10	Qf7 Qc7 Qxc7+ Kxc7 Rf7+ Rd7 Rhf1 Bc8 Nce2 Kd8 Rxd7+ Bxd7 Rf7 Rh8 Kd1 Kc8 c4 bxc4 dxc4 Be8 Re7 Kd8 Rg7 Nf6 Kc2 Bb6 
 18	+1.92 	5.82M  	0:00.32	Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qg7 Be6 Nc1 Rg8 Qe7 Qc8 Nf5 Qd7 Qxd7 Rxd7 Ng7 
 17	+1.95 	5.63M  	0:00.31	Qf7 Rh8 Nce2 Bc8 b4 Qa6 Kb1 Bb6 Qxg6 Nf8 Qh5 Nh7 Nf5 Be6 Nc1 Qc8 Qg6 Qd7 Ng7 Bg8 Qh5 Kb7 Qf5 Kc8 Qxd7+ Rxd7 Ne2 Kb8 Ng3 Bf7 N3f5 
 16	+1.65 	3.62M  	0:00.20	Qf7 Rh8 Nce2 Bc8 b4 Be3 Qxg6 Nf8 Qf6 Nh7 Qg7 Bxd2+ Kxd2 c5 bxc5 Qxc5 c3 Rdg8 b4 
 15	+1.68 	2.52M  	0:00.14	Qf7 Rh8 Nce2 Bc8 b4 Rdf8 Qg7 Bf2 Qxg6 Qc7 Nh5 Qd8 Ng7 Rf6 Qg2 Bb6 
 14	+1.78 	1.20M  	0:00.07	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 Qxc5 c3 a3 bxa3 Qxa3 Rc1 Qa5 Rc2 
 13	+1.63 	442909	0:00.03	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 Qxc5 
 12	+1.63 	375418	0:00.02	Qf7 Rh8 Nce2 a5 Qxg6 Rdg8 Qh5 a4 b4 Be3 Rf7 Bxd2+ Kxd2 c5 bxc5 
 11	+1.29 	228452	0:00.02	Qf7 Rh8 Nce2 a5 Qxg6 Bc8 Rf7 Rdg8 Qh5 Be3 Bxe3 Qxe3+ Kb1 Rxg3 Nxg3 
 10	+1.21 	146162	0:00.01	Qf7 Rh8 Nce2 b4 Qxg6 Bc8 Rf7 Rdg8 Rxh7 Rxg6 Rxh8 a5 
  9	+1.24 	112978	0:00.01	Qf7 Rh8 Nce2 Rdg8 b4 Qa6 Kb1 Rf8 Qe7 
  8	+0.62 	42502  	0:00.00	Qf7 Rh8 Nce2 Rdg8 Kb1 b4 Bc1 d5 
  7	+2.19 	18539  	0:00.00	Qf7 Rh8 Qxg6 Be3 Nf5 Bxd2+ Kxd2 b4 
  6	+4.45 	9776    	0:00.00	Qf7 Bb4 Qxh7 Bxc3 bxc3 d5 
  5	+4.26 	6905    	0:00.00	Qf7 Be3 Qxh7 b4 Nce2 
  4	+4.31 	4839    	0:00.00	Qf7 a6 Qxh7 d5 Nce2 
  3	+3.95 	3624    	0:00.00	Qf7 d5 Qxh7 
  2	+3.82 	2644    	0:00.00	Qf7 d5 Qxh7 
  1	+0.75 	750      	0:00.00	Nce2 b4 
  0	# 
latest McBrain using MCS

Code: Select all

info depth 31 seldepth 54 multipv 1 score cp 77 nodes 743600095 nps 21141820 hashfull 184 tbhits 0 time 35172 pv f3f7 b6c7 f7c7 b8c7 f1f7 d8d7 h1f1 b7c8 c3e2 g8e8 d3d4 c5b6 d4d5 e8e7 f7e7 d7e7 e2c3 c8h3 d5c6 c7c6 c3d5 e7d7 d5b6 a7b6 f1f2 h3e6 d2e3 g6g5 c1d2 g5g4 d2c3 d6d5 e4d5 d7d5 c3b4 d5d7 g3e4 d7f7 f2f7 e6f7 e4f2 f7h5 f2d3 h7f6 d3e5 c6d6
info depth 32 seldepth 60 multipv 1 score cp 150 nodes 2005179446 nps 21299520 hashfull 453 tbhits 0 time 94142 pv b3b4 c5b4 f3f7 b6c7 f7c7 b8c7 f1f7 d8d7 h1f1 g8d8 f7g7 a7a5 g7g6 b7c8 g6g7 d8h8 c3d1 b4d2 c1d2 h7f8 f1f6 f8e6 g7g4 d7h7 g3f5 e6d4 g4g6 d4f5 e4f5 c8f5 f6f5 h7h6 g6g7 c7b6 d1f2 h6h2 f5f7 a5a4 c2c3 b6c5 d2e3 d6d5 f7f5 h8h4 e3f3 b5b4 c3b4 c5b4 f5e5 b4b5
info depth 33 seldepth 54 multipv 1 score cp 154 nodes 2149192659 nps 21354404 hashfull 473 tbhits 0 time 100644 pv b3b4 c5b4 f3f7 b6c7 f7c7 b8c7 f1f7 d8d7 h1f1 g8d8 f7g7 a7a5 g7g6 b7c8 g6g7 d8h8 g3f5 h7f8 f5e7 f8e6 g7g8 h8g8 e7g8 d7h7 g8f6 h7h8 h6h7 b4c5 c3d1 a5a4 d2e3 e6d4 c2c3 d4b3 c1c2 c8e6 f1h1 d6d5 e3c5 b3c5 e4d5 e6d5
info depth 34 seldepth 54 multipv 1 score cp 164 nodes 2354699916 nps 21359953 hashfull 513 tbhits 0 time 110239 pv b3b4 c5b4 f3f7 b6c7 f7c7 b8c7 f1f7 d8d7 h1f1 g8d8 f7g7 d7g7 h6g7 d8g8 c3d5 c6d5 f1f7 c7b6 d2b4 d5e4 b4d6 b7d5 f7e7 e4d3 c2d3 h7g5 d6e5 b5b4 e5f6 g5e6 g3e4 a7a5 f6e5 b6b5 e4f6 g8g7 e7g7 e6g7 f6d5 g7e6 b2b3 g6g5 d5e3 a5a4 b3a4 b5a4 c1c2 e6c5 e3c4
info depth 35 seldepth 65 multipv 1 score cp 176 nodes 3827103086 nps 21359462 hashfull 701 tbhits 0 time 179176 pv b3b4 c5b4 f3f7 b6c7 f7c7 b8c7 f1f7 d8d7 h1f1 g8e8 f7g7 d7g7 h6g7 b4c5 f1f7 c7b6 g7g8q e8g8 f7h7 a7a5 c3e2 b5b4 c2c3 d6d5 d3d4 e5d4 c3d4 c5f8 h7f7 d5e4 g3e4 b7a6 e4f6 g8g7 f7f8 a6e2 d2e3 b6b5 b2b3 g7e7 c1d2 e2d1 f8b8 b5a6 d4d5 c6d5 f6d5 e7e3 d2e3 d1b3 b8b6 a6a7 b6b5

Colin-G
Posts: 156
Joined: Mon Oct 31, 2016 5:30 pm
Location: England

Re: Interesting position, best move b4

Post by Colin-G » Fri Jul 20, 2018 8:57 am


This is one of the oldest positions in my testset that I use in testing engines.
It was a puzzle in the Times newspaper many years ago, that I edited to make it more difficult.
Some modern engines find it difficult to solve quickly, which I assume is due to heavy pruning, compared to the old engines.
After white plays b4, black either loses the queen or gets mated.

Dann Corbit
Posts: 10475
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Interesting position, best move b4

Post by Dann Corbit » Fri Jul 20, 2018 10:25 pm

Code: Select all

Searching: r4bk1/1p1r1p1p/p2ppBp1/2q5/b1P1P3/7R/PP2QPPP/1NR3K1 w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0

 1   +1.96   00:00    1667  Nc3 
 2   +1.55   00:00   24663  b4 Qa7 
 3   +1.10   00:00   42730  Qd2 Bc6 Bd4 
 4   +1.01   00:00   59830  Qd2 Qb6 Nc3 Bc6 Rd1 
 5   +1.40   00:00   79160  Qd2 h5 b4 Qb6 Qg5 
 6   +1.52   00:00  101540  Qd2 Be7 b4 Qc7 Bd4 h5 
 7   +0.99   00:00  121375  Qd2 h5 b4 Qc6 Nc3 Kh7 f4 
 8   +1.25   00:00  140234  Qd2 h5 Nc3 Bc6 Nd5 exd5 cxd5 Qb5 
 9   +1.21   00:00  162842  Qd2 h5 Nc3 Bc6 Nd5 exd5 cxd5 Qb5 Rb3 Qa4 
10   +1.05   00:00  197024  Qd2 Qb6 Nc3 Bc6 Nd5 exd5 exd5 Bb5 cxb5 axb5 
11   +1.11   00:00  251261  Qd2 Qa7 Bd4 Qb8 Nc3 Bc6 Nd5 exd5 exd5 Re7 dxc6 bxc6 
12   +1.11   00:00  307163  Qd2 h5 Nc3 Bc6 Nd5 exd5 cxd5 Qb5 dxc6 bxc6 Rb3 Qa4 Rb6 
13   +1.08   00:00  740682  Qd2 Qa7 Nc3 Bc6 Nd5 exd5 exd5 Re8 Bd4 Qb8 dxc6 bxc6 Rf3 
14   +1.13   00:00  946984  Qd2 Qb6 Nc3 Bc6 Nd5 exd5 exd5 Re8 b3 h5 dxc6 bxc6 g4 Bg7 Bxg7 
15   +1.38   00:00   2204K  Qd2 Qa7 Rcc3 Be7 Bxe7 Rxe7 Rcd3 Bc6 Nc3 Rd7 Rxd6 Rxd6 Qxd6 Qb8 e5 h5 b3 Kh7 Qc5 
16   +1.31   00:00   6871K  Qd2 Be7 b4 Qc6 Bb2 Bf8 Nc3 Rc7 Ne2 h5 Nc3 Kh7 g4 Bh6 g5 Bf8 Rf3 Kg8 
17   +1.56   00:00   8616K  Qd2 Be7 b4 Qc6 Bb2 Bf8 Ra3 Bg7 Bxg7 Kxg7 Nc3 b5 cxb5 Bxb5 Nd5 Qb7 Qc3+ e5 Qf3 Bc6 Nf6 Rdd8 Rac3 Rac8 Ng4 
18   +1.73   00:01  14161K  Qd2 Be7 b4 Qc6 Bb2 Bd8 Ra3 f6 h4 Rf7 Nc3 b5 h5 g5 cxb5 Bxb5 Nxb5 Qxb5 Qxd6 Qe2 
19   +1.72   00:01  14923K  Qd2 Be7 b4 Qc6 Bb2 Bd8 Ra3 f6 h4 Rf7 Nc3 b5 h5 g5 cxb5 Bxb5 Nxb5 Qxb5 Qxd6 Qe2 Ba1 Qxe4 Rxa6 Rxa6 Qxa6 Qd5 Qa4 Rf8 Bb2 Rf7 b5 
20   +1.40   00:01  16322K  Qd2 Be7 b4 Qc6 Bb2 Bd8 Ra3 e5 Qh6 f6 Qh3 Kg7 Nc3 b5 Re1 Rb7 Bc1 Qd7 Qxd7+ Rxd7 Nxa4 bxa4 Rxa4 Rc8 Bd2 Rxc4 Rxa6 
21   +6.86   00:02  26142K  b4 Bh6 bxc5 Bxc1 Nc3 Bc6 cxd6 Rxd6 Qg4 Bd2 Be5 Bxc3 Bxd6 Bg7 e5 h6 f3 h5 Qd4 b5 Qc3 Bb7 cxb5 
22   +7.20   00:04  38923K  b4 Bg7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rhxc3 Rxd6 e5 Rd4 Rd3 Rad8 Rxd4 Rxd4 f3 a5 Qe3 Rd7 f4 h5 c5 a4 g3 Bb5 Kf2 Kg7 Kg2 
23   +7.66   00:05  58333K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rd4 Rxd4 cxd4 Qd2 Rc8 Qh6 Rxc4 Qxh7+ Kf8 Qh6+ Ke8 Qg5 Rc2 Rh7 Rxa2 Rh8+ Kd7 Qd8+ Kc6 Qxd4 Kb5 f3 Ka5 
24   +7.85   00:06  74234K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Rf8 e5 h5 f3 h4 Qg5 h3 Qe7 a5 Rd8 Rxd8 Qxd8+ Kg7 Qxa5 hxg2 Kxg2 b5 cxb5 
25   +7.90   00:07  86661K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 e5 h5 Rd6 Kg7 Qf4 Kg8 Qh4 Ba4 Rd8 Rxd8 Qxd8+ Kg7 Qe7 b5 Qd6 bxc4 Qxa6 Bc2 Qxc4 Bf5 
26   +8.00   00:09 108569K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 e5 Qg5 Bxe4 Rd8+ Rxd8 Qxd8+ Kg7 Qe7 Bf5 Qxe5+ Kh6 Qxc5 Be6 Qf8+ Kg5 f3 b5 cxb5 axb5 Qc5+ Kh6 Qxb5 Bxa2 Qb2 Be6 Qh8 
27   +8.00   00:09 119021K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 e5 Qg5 Bxe4 Rd8+ Rxd8 Qxd8+ Kg7 Qe7 Bf5 Qxe5+ Kh6 Qxc5 Be6 Qf8+ Kg5 f3 b5 cxb5 axb5 Qc5+ Kh6 Qxb5 Bxa2 Qb2 Be6 
28   +8.03   00:11 141598K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Rf8 e5 b5 Rd6 Bb7 Rb6 Rd8 f4 Ba8 Qxc5 bxc4 Qxc4 Rd1+ Kf2 Rd2+ Ke1 Rd8 Qc7 Rf8 Kf2 Be4 Rxa6 Bd5 Ra7 Kg7 Kg3 Kg8 Qe7 
29   +8.08   00:14 178315K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 e5 Kg7 Qg5 h5 f3 Ba4 Qf6+ Kg8 Rd6 Bc6 Qg5 Ba4 Qe3 Kg7 Qf4 a5 Qf6+ Kf8 Rd8 Rxd8 Qxd8+ Kg7 Qc7 Bc2 Qxa5 Bb1 
30   +8.11   00:17 224447K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 f3 Kg7 Qd2 Kf6 Rd8 Rxd8 Qxd8+ Kg7 Qe7 Kg8 Qxc5 Kg7 Qd4+ Kg8 Qe5 h6 Qf6 h5 Qd8+ Kg7 Qb8 g5 Qd8 g4 Qg5+ Kf8 Qc5+ Ke8 
31   +8.07   00:20 268778K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 e5 Qd2 Re7 Rd8+ Rxd8 Qxd8+ Re8 Qc7 Bc6 Rd3 Bxe4 Rd8 Rxd8 Qxd8+ Kg7 Qe7 Bf5 Qxe5+ Kh6 Qxc5 Be6 Qf8+ Kg5 Qb4 b5 cxb5 axb5 Qxb5+ Kf6 Qb2+ Ke7 a4 Kd7 Qb7+ Kd6 f3 h5 Qb2 
32   +8.27   00:32 435818K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 f3 Kg7 Qd2 h6 Rd8 Rxd8 Qxd8 h5 Kf2 Ba4 Qc7 Bc6 Qe7 h4 Qxh4 b5 Qg5 bxc4 Qe5+ Kg8 Qxc5 Bb5 Kg1 Kg7 Qd4+ Kf8 Qf6 Kg8 
33   +8.38   01:00 813677K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 f3 Kg7 Qd2 h6 Rd8 Rxd8 Qxd8 Ba4 Qd6 Bc6 Qxc5 Kg8 Qd4 Kh7 Qd8 Kg7 Qd6 Kg8 Qd3 Kg7 Qd8 Ba4 Qd4+ Kg8 Qd2 h5 Qa5 Bc6 Qb6 h4 Qd8+ Kg7 Qxh4 f6 e5 
34   +8.39   01:09 950528K  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 f3 Kg7 Qd2 h6 Rd8 Rxd8 Qxd8 Ba4 Qd6 Bc6 Qxc5 Kg8 Qd4 Kh7 Qd8 Kg7 Qd6 Kg8 Qd3 Kg7 Qd8 Ba4 Qd4+ Kg8 Qd2 h5 Qg5 Bc6 Qd8+ Kg7 Qb8 
35   +8.46   01:35   1308M  b4 Be7 bxc5 Bxf6 Nc3 Bxc3 Rcxc3 dxc5 Rcd3 Rxd3 Rxd3 Bc6 Qe3 Re8 f3 Kg7 Qd2 h6 Rd8 Rxd8 Qxd8 Ba4 Qd6 Bc6 Qe7 Kg8 Qf6 h5 Qd8+ Kg7 Qd6 Kg8 Qxc5 Kg7 Qd6 Kg8 Qd8+ Kg7 Kf2 h4 Qd4+ Kg8 Kg1 Ba4 Qe5 Bc6 Qf6 h3 
36   +8.51   02:07   1742M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 e5 c5 f6 f3 Rg7 g4 Rf8 Qd2 Re8 Kf2 Rf7 Rg3 Re6 Qd3 Kg7 h4 a5 Qc4 Re8 a4 Rh8 h5 Re8 h6+ Kf8 Kg2 f5 gxf5 gxf5 exf5 
37   +8.54   02:25   1985M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Be5 c5 f6 Qe3 Bxc3 Rxc3 e5 f3 Rg7 Rc2 Ba4 Rb2 Bc6 g4 Rf8 Qb3+ Rgf7 Rc2 Kg7 Rg3 Re8 h4 Bb5 Rb2 Bc6 h5 g5 Rd2 Kg8 Kf2 Kg7 Kg2 Rd8 Rc2 
38   +8.54   02:39   2179M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Be5 c5 f6 Qe3 Bxc3 Rxc3 e5 f3 Rg7 Rc2 Ba4 Rb2 Rf7 g4 Re8 Rg3 Bc6 h4 Kg7 Qc3 Kf8 Rc2 Kg7 Qb3 Bb5 Rb2 Bc6 Qe3 Re6 Rc2 Re8 Rc3 Bd7 Qd2 Bc6 Kf2 Re6 
39   +8.88   07:41   6154M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Rd6 h6 Qd4+ Kg8 Rd8 Rxd8 Qxd8+ Kg7 Qd3 Kf6 Qd2 Kg7 Qb2+ Kh7 Qd4 Kg8 Qf6 Ba4 Qf4 Kg7 Qe5+ Kh7 Qc7 Kg7 Qxb7 a5 Qc7 
40   +8.96   08:04   6464M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Qa5 Rf8 Qc7 Ra8 Qe5+ Kg8 Qa5 Kg7 Rd4 Kg8 Rd8+ Rxd8 Qxd8+ Kg7 Qd4+ Kg8 Qc5 h5 Qb6 Kg7 Qd4+ Kh7 Qf6 Kg8 Qd8+ Kg7 Qb8 h4 Qe5+ Kg8 Qd4 
41   +8.96   08:23   6730M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Qa5 Rf8 Qc7 Ra8 Qe5+ Kg8 Qa5 Kg7 Qc3+ Kg8 Qd2 Kg7 Rd6 Re8 Qd4+ Kg8 Rd8 Rxd8 Qxd8+ Kg7 Qd4+ Kg8 Qe5 h6 Qc5 g5 Qe3 f6 Qb6 g4 fxg4 
42   +8.96   08:36   6905M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Qa5 Rf8 Qc7 Ra8 Qe5+ Kg8 Qa5 Kg7 Qc3+ Kg8 Qd2 Kg7 Rd6 Re8 Qd4+ Kg8 Rd8 Rxd8 Qxd8+ Kg7 Qd4+ Kg8 Qe5 h6 Qc5 g5 Qe3 f6 Qb6 g4 fxg4 e5 
43   +8.96   08:56   7163M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Qa5 Rf8 Qc7 Ra8 Qe5+ Kg8 Qa5 Kg7 Qc3+ Kg8 Qd2 Kg7 Rd6 Re8 Qd4+ Kg8 Rd8 Rxd8 Qxd8+ Kg7 Qd4+ Kg8 Qe5 h6 Qc5 g5 Qe3 f6 Qb6 g4 fxg4 e5 Qc7 Bxe4 
44   +8.96   09:16   7435M  b4 Be7 bxc5 Bxf6 Nc3 Bc6 cxd6 Bxc3 Rcxc3 Rxd6 Rhd3 Rdd8 Rxd8+ Rxd8 f3 Rf8 Rd3 Kg7 Qd2 Re8 Qa5 Rf8 Qc7 Ra8 Qe5+ Kg8 Qa5 Kg7 Qc3+ Kg8 Qd2 Kg7 Rd6 Re8 Qd4+ Kg8 Rd8 Rxd8 Qxd8+ Kg7 Qd4+ Kg8 Qe5 h6 Qc5 g5 Qe3 f6 Qb6 g4 Qd8+ Kf7 Qh8 f5 exf5 gxf3 fxe6+ Kxe6 Qxh6+ Kd7 
Nodes: 7435620603
Nodes/second: 13368994
Best move: b4
Ponder move: Be7
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Post Reply