Can you see Rb5 in 1 sec on a slow machine or in 12 ply?

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CRoberson
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Can you see Rb5 in 1 sec on a slow machine or in 12 ply?

Post by CRoberson »

In the following, Telepath played Ra6 against Crafty. Both were running on 1 proc each of a Core 2 Duo T5500 laptop. The game was drawn.

[d] 8/8/7p/R6P/P7/1P3k2/1r6/6K1 w - - 0 31

From my perspective, Rb5 was a better move and could lead to a win. Does it win? Also, this game was played at blitz TC of G/3+2. Each side was moving at a 2 second pace at this point.
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Can you see Rb5 in 1 sec on a slow machine or in 12 ply?

Post by zullil »

CRoberson wrote:In the following, Telepath played Ra6 against Crafty. Both were running on 1 proc each of a Core 2 Duo T5500 laptop. The game was drawn.

[d] 8/8/7p/R6P/P7/1P3k2/1r6/6K1 w - - 0 31

From my perspective, Rb5 was a better move and could lead to a win. Does it win? Also, this game was played at blitz TC of G/3+2. Each side was moving at a 2 second pace at this point.
Stockfish-1.6.3 (8 threads) says that Rb5 wins. The position obtained from the depth 32 pv is a win for White, according to endgame tables. The move Rb5 was found at depth 12 in 710 milliseconds.

Code: Select all

info depth 12 score cp 181 time 710 nodes 339245 nps 477809 pv a5b5 b2b1 g1h2 b1b2 h2h3 b2b1 b5f5 f3e4 f5f6 b1b3 h3g4 b3a3 f6h6 a3a4 h6g6 e4e3 g4h3 a4a8 h5h6

Code: Select all

Searching: 8/8/7p/R6P/P7/1P3k2/1r6/6K1 w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     +1.70   00:00      162 Ra6 Ke4 Re6+ Kd4 
 3     +1.70   00:00      377 Ra6 Ke4 Re6+ Kd5 
 4     +1.70   00:00     1012 Ra6 Rxb3 Rxh6 Rb2 Rf6+ Ke4 
 5     +1.94   00:00     1751 Ra6 Rxb3 Rxh6 Rb2 Re6 
 6     +2.02   00:00     3384 Ra6 Rxb3 Rxh6 Rb2 Rf6+ Ke4 a5 
 7     +1.82   00:00     6914 Ra6 Rb1+ Kh2 Rxb3 Rxh6 Kg4 a5 Rb2+ Kg1 
 8  <  +1.33   00:00    20273 Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 
 8     +1.78   00:00    29111 Rf5+ Kg3 a5 Rxb3 Kf1 Kg4 Rf6 Rb1+ Ke2 Kxh5 
 9     +1.82   00:00    43620 Rf5+ Kg3 Kf1 Rxb3 Ke2 Ra3 a5 Kg4 Rb5 Kf4 
10  <  +1.62   00:00    57872 Rf5+ Kg3 Kf1 Rxb3 Ke2 Ra3 a5 Kg4 Rb5 Kf4 
11     +1.37   00:00    88585 Rf5+ Kg3 Kf1 Rxb3 Ke2 Ra3 a5 Kg4 Rb5 Kf4 Kd2 Ke4 
                              Rc5 Ra2+ Kc3 
11     +1.70   00:00   141206 Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Ra2 a6 Kg5 
                              Re6 Kxh5 Kf1 Kg4 
12     +1.37   00:00   224449 Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 Rh8 Ra1 Kg2 Ra2+ Kf1 
                              Kg5 h6 Kg6 a5 Rxa5 Ke2 
12     +1.82   00:00   339245 Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Rxh6 Rxa4 Rg6 Ke3+ Kh3 Ra8 h6 
13     +2.06   00:00   615106 Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Rxh6 Rxa4 Rb6 Kd4 Kg3 Kc5 Rf6 Ra7 h6 Kd5 
14     +2.02   00:00    1299k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Rxh6 Rxa4+ Kf3 Kd4 Rb6 Ke5 h6 Ra8 
                              Kg4 Rg8+ Kh5 Kf5 Rb5+ Ke4 h7 
15     +1.82   00:00    1792k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rh7 Ke3+ Kg3 Ke4 
                              h6 Kf5 Rg7 Ra3+ Kh4 Ra1 h7 Rh1+ Kg3 Kf6 Rd7 Ke5 
16     +1.90   00:00    2101k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rh7 Ke3+ Kg3 Ke4 
                              h6 Kf5 Rg7 Kf6 Kf3 Rh4 
17     +1.82   00:01    2413k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rh7 Ke3+ Kg3 Ke4 
                              h6 Kf5 Rg7 Ra8 Kh4 Rh8 Rg5+ Ke4 Kh5 Rh7 Kg6 
18     +2.02   00:01    3535k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rh7 Ke3+ Kg3 Ke4 
                              h6 Kf5 Rg7 Ra8 Kh4 Rh8 Kh5 Kf6 Rg6+ Kf5 Rg5+ Kf6 
                              Rg7 Kf5 h7 Kf6 Kh6 Ke5 
19     +2.14   00:01    7055k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Re6+ Kd3 Kf5 Rxa4 Kg6 Kd4 Kxh6 Kd5 Rf6 Ke5 
                              Kg6 Rh4 Rb6 Rg4+ Kf7 Rf4+ Kg8 Kf5 Rb5+ Kf6 h6 
                              Rg4+ Kf8 
20  >  +2.59   00:04   35642k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Rxh6 Rxa4 Rb6 Ra1 Kg5 Rg1+ Kf6 Rh1 Kg6 Rg1+ 
                              Kf7 Rh1 h6 Kf5 Rf6+ Ke5 Kg7 Rh2 Rg6 
21     +2.42   00:04   38137k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 
                              Ra3 Rxh6 Rxa4 Rb6 Ke5+ Kg5 Ra2 Kg6 Rg2+ Kf7 Rf2+ 
                              Kg7 Rg2+ Rg6 Ra2 Rf6 Rg2+ Kf7 Kd4 h6 Rh2 Kg7 Ke5 
                              Kf7 Rb2 Re6+ Kf5 h7 Rh2 Rb6 Rxh7+ Kg8 Rh1 
22     +2.59   00:08   83529k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg3 
                              Rxh5 b4 Rh1 Rf4+ Ke3 b5 Rg1+ Kh2 Rb1 Rh4 Kf3 Rxh6 
                              Rb4 b6 Rxa4 b7 Rb4 Rh7 Kg4 Rg7+ Kf4 Re7 Rb1 Kg2 
                              Rb3 Rd7 Rb2+ Kh3 Rb3+ Kg2 
23     +2.42   00:12  124938k Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Kg1 Rb2 Rb5 Ra2 a5 Kg3 
                              Kf1 Kf3 Rf5+ Kg4 Rc5 Kf3 Rc3+ Kg4 b4 Kxh5 Rc6 Rb2 
                              Rb6 Kg4 b5 Kf3 Rf6+ Ke4 b6 h5 a6 Kd5 a7 Ra2 b7 
24  >  +2.91   00:15  146896k Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Kg1 Rb2 Rb5 Ra2 a5 Kg3 
                              Kf1 Kf3 Rf5+ Kg4 Rc5 Kf3 Ke1 Rb2 Rc3+ Kf4 a6 Ke5 
                              Rc6 Rxb3 Kd2 Rb2+ Kc3 
25     +2.91   00:16  159824k Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Kg1 Rb2 Rb5 Ra2 a5 Kg3 
                              Kf1 Kf3 Rf5+ Kg4 Rc5 Kf3 Ke1 Ke3 Kd1 Kd4 b4 Rb2 
                              Rc6 Rxb4 Rxh6 Ra4 a6 Ra2 Rg6 Kd3 Ke1 
26     +2.91   00:18  182101k Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Kg1 Rb2 Rb5 Ra2 a5 Kg3 
                              Kf1 Kf3 Rf5+ Kg4 Rc5 Kf3 Ke1 Ke3 Kd1 Kd4 b4 Kd3 
                              Ke1 Re2+ Kf1 Rb2 Rc6 Rxb4 Rxh6 Rb2 a6 Ke4 Kg1 Kf5 
                              Rd6 Ke5 Rg6 Ke4 h6 Ra2 h7 
27     +2.91   00:23  231539k Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Kg1 Rb2 Rb5 Ra2 a5 Kg3 
                              Kf1 Kf3 Rf5+ Kg4 Rc5 Kf3 Ke1 Ke3 Kd1 Kd4 b4 Kd3 
                              Ke1 Re2+ Kf1 Rb2 Rc6 Rxb4 Rxh6 Rb2 a6 Ke4 Kg1 Kf5 
                              Rd6 Ke5 Rg6 Ke4 h6 Ra2 h7 
28     +2.99   00:36  363868k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg3 
                              Rxh5 b4 Rh1 Rf4+ Kd5 Rh4 Ra1 a5 Rb1 Kf3 h5 Rxh5+ 
                              Kc4 Rh4+ Kb5 Ke3 Re1+ Kd3 Ra1 Kc3 Ra3+ Kc2 Rg3 
                              Rd4 Rh3 Kd2 Rh8 Kd3 
29  >  +3.19   01:03  660433k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg3 
                              Rxh5 b4 Rh1 Rf4+ Kd5 Rh4 Ra1 a5 Rb1 Kf2 Rb3 Ke2 
                              Ra3 
30     +3.19   01:27  890850k Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg3 
                              Rxh5 b4 Rh1 Rf4+ Kd5 Rh4 Ra1 a5 Rb1 Kf2 Rb2+ Ke3 
                              Rb3+ Kd2 Ra3 Rxh6 Kc4 Rb6 Kd4 Ke2 Ke4 Re6+ Kd5 
                              Rh6 Ke4 Rh4+ Kd5 Kf2 Rb3 Rf4 Ke5 Rh4 Kd5 
31  >  +4.00   03:10    1984M Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg2 
                              Rxh5 b4 Rg5+ Kf2 Rh5 a5 Ke5 Rc6 Rh2+ Kg3 Rd2 Rxh6 
                              Rd3+ Kf2 Kf4 a6 Rd2+ Kf1 Ra2 b5 Ke4 Rh8 Kd5 b6 
                              Ra1+ Kg2 
32     +4.00   03:34    2205M Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rh1+ Kg2 
                              Rxh5 b4 Rg5+ Kf2 Rh5 a5 Ke5 Rc6 Rh2+ Kg3 Rd2 Rxh6 
                              Rd3+ Kf2 Ra3 a6 Kd5 Rb6 Ra2+ Ke3 Ke5 Kf3 Ra3+ Kg4 
                              Ra1 b5 Ra4+ Kg5 Ra1 Rc6 Rg1+ Kh5 Kd5 Rf6 Rb1 b6 
Nodes: 2685595875
Nodes/second: 10200957
Best move: Rb5
Ponder move: Rb1+
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Eelco de Groot
Posts: 4673
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Can you see Rb5 in 1 sec on a slow machine or in 12 ply?

Post by Eelco de Groot »

Here is some output from Rainbow Serpent, it does not get to very high depth I think mainly because of only 32 Mb transposition tables, but also because of extensions. The eval is climbing, but you would have to let it run longer to go past +3. Output this time from ChessPartner.

ChessPartner accepts the position from Harm-Geert but Shredder does not! So I had to change GUI. Strictly speaking, I'm not 100% sure about it but I think this in the ChessPartner GUI is not Analysis mode but game mode, with infinite time that means the King Safety in Stockfish and Rainbow Serpent is not made symmetric for White and Black, because that is only done when in analysis mode, but in this position, with no Queens King Safety is not computed anyway. I think I would prefer a symmetric King Safety so as not to have different behaviour when playing games but have not tested yet what works better.

Code: Select all

00:00:00.0	2,06	1	84	Ra6 
00:00:00.0	0,96	2	155	Ra6 Rxb3 Rxh6 
00:00:00.1	1,65	2	4389	Rf5+ Ke4 Rf6 Rxb3 Rxh6 Kd4 Rf6 
00:00:00.1	1,65	3	6381	Rf5+ Ke4 Rf6 Rxb3 Rxh6 Kd4 Rf6 
00:00:00.1	2,14	3	19019	Ra6 Rxb3 Rxh6 Rb2 Rf6+ Ke4 h6 Rc2 
00:00:00.2	2,06	4	88416	Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Kg5 Rc6 
00:00:00.3	2,14	5	201460	Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Kg5 Rc6 
00:00:00.3	2,14	6	204584	Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Kg5 Rc6 
00:00:00.3	2,02	7	211040	Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Kg5 Rc6 
00:00:00.4	2,26	8	283722	Ra6 Rb1+ Kh2 Rxb3 Rxh6 Kg4 a5 Rb2+ Kg1 Ra2 a6 Kg5 Rc6 Kxh5 Rf6 Kg4 
00:00:00.4	1,77	9	332140	Ra6 Rb1+ Kh2 Rxb3 Rxh6 Kg4 a5 Rb2+ Kg1 Ra2 a6 Kg5 Rc6 Kxh5 Kf1 Kg4 Rf6 Kg5 Rc6 Kf5 
00:00:01.2	1,09	10	1111615	Ra6 Rxb3 Rxh6 Rb1+ Kh2 Kg4 a5 Rb2+ Kg1 Ra2 a6 Kg5 Rb6 Kxh5 Rf6 Kg5 Re6 Kf5 Rd6 Ke5 Rc6 Ke4 Rf6 Kd5 
00:00:01.3	1,78	10	1142583	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Re6+ Kd4 Kf4 Kd5 Rxh6 Rxa4+ Kf5 Ra5 Rf6 Kd4+ Kg4 
00:00:01.7	1,92	11	1502558	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Re6+ Kd3 Rxh6 Rxa4+ Kg5 Ra5+ Kf4 Ra4+ Kf3 Kd4 Rg6 Ke5 h6 Ra8 
00:00:02.2	1,85	12	1979886	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rb6 Ra8 Re6+ Kd5 Kf5 Rf8+ Rf6 Rh8 h6 
00:00:03.1	1,85	13	2841348	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Re6+ Kd3 Ra6 Ke4 Rxh6 Rxa4 Rb6 Ra1 Rb4+ Ke5 h6 Ra8 Rb6 Rh8 Kg5 Rg8+ Rg6 Rh8 Rg7 Ke4 
00:00:05.1	2,05	14	5023772	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ke5 Rxh6 Rb4+ Kg5 Rxa4 Rh8 Ke6 Rf8 Ra2 h6 Rg2+ Kh5 Rh2+ Kg6 Rg2+ Kh7 Ke5 Kh8 Rg1 h7 
00:00:08.1	2,12	15	8326158	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Re6+ Kd3 Kf5 Rxa4 Kg6 Rg4+ Kh7 Rg1 Kxh6 Kd4 Kh7 Kd5 Rg6 Rc1 
00:00:10.7	1,97	16	11248965	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ke5 Rxh6 Rb4+ Kg5 Rxa4 Rh8 Ke6 Rf8 Ra1 h6 Rg1+ Kh5 Rh1+ Kg6 Rg1+ Kh7 Ke5 Kh8 Ra1 h7 Ke6 
00:00:13.2	2,02	17	13998130	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ke5 Rxh6 Rb4+ Kg5 Rxa4 Rh8 Ke6 Rf8 Ke7 Rf1 Ra8 h6 Rg8+ Kh5 Rf8 Rg1 Ra8 Rh1 Kf7 Kg5 Kg8 
00:00:18.2	2,23	18	19563123	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke4 Rf6 Rxb3+ Kg4 Ra3 Rxh6 Rxa4 Rb6 Ra2 Kg5 Rg2+ Kf6 Rh2 Kg6 Rg2+ Kf7 Rh2 h6 Rf2+ Rf6 Rh2 Rg6 Rh3 Kg7 Ke5 
00:01:46.2	2,70	19	98413453	Rb5 Rb1+ Kh2 Rb2+ Kh3 Rb1 Rf5+ Ke2 Rf6 Rxb3+ Kg2 Ra3 Rxh6 Rxa4 Re6+ Kd3 Kf3 Rh4 h6 Kd4 Kg3 
00:28:54.1	2,75	20	1501235987	Rb5 Rg2+ Kf1 Rh2 Rf5+ Kg4 Rc5 Kf3 Rc3+ Ke4 b4 Kd4 Rc6 Rxh5 Kg2 Rh4 Kg3 Rh1 a5 Rg1+ Kf2 Rb1 Rxh6 Rb2+
[Engine: Rainbow Serpent 1.6.3s(dc) Build 216 (Athlon 2009 MHz, 32 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski Modifications: Dann Corbit
ChessPartner GUI]
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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metax
Posts: 344
Joined: Wed Sep 23, 2009 5:56 pm
Location: Germany

Re: Can you see Rb5 in 1 sec on a slow machine or in 12 ply?

Post by metax »

ChessMind plays it right from the beginning (ply 1, 0 seconds :)) but it does not get a very high score. At every iteration it thinks very long about Ra6 which causes a high EBF, so I did not let it run for a long time.

Code: Select all

8/8/7p/R6P/P7/1P3k2/1r6/6K1 w - -

Engine: ChessMind 0.72 (0 MB)
by metax

9.00   0:00   +0.74    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Kd5 
                       7.Rxh6 Rb4+ 8.Kf5 (206.522) 220 

10.00  0:01   +0.64    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rb5 Ra3 9.Rb4+ (333.387) 254 

11.00  0:02   +0.61    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rb5 Ra3 9.a5 (603.909) 293 

12.01  0:05   +0.67    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.a5 Ra3 9.Rb5 Ra4 (1.985.250) 339 

13.01  0:07   +0.63    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.a5 Rc3 9.Rb5 Ra3 10.Rc5 (2.713.302) 345 

14.01  0:09   +0.60    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.a5 Rc3 9.Rb5 Ra3 10.Rc5 Rb3 
                       11.Rc4+ (3.466.283) 353 

15.01  0:14   +0.62    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rf1 Rc3 9.Rf6 Ke5 
                       10.Rxh6 Rc4+ 11.Kg5 Rxa4 (5.260.218) 359 

16.01  0:17   +0.64    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rf1 Rc3 9.Rf6 Ke5 
                       10.Rxh6 Rc4+ 11.Kh3 Rxa4 12.Rg6 (6.556.595) 365 

17.01  0:39   +0.61    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rf1 Rc3 9.Rf4+ Ke5 
                       10.Rb4 Rc5 11.Kf3 Rc3+ 12.Ke2 Ra3 
                       13.Kd2 Rf3 (14.741.938) 369 

18.01  1:07   +0.59    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rf5+ Ke4 8.Rf1 Rc3 9.Rf4+ Ke5 
                       10.Rb4 Ra3 11.Rb5+ Ke4 12.a5 Ra4 
                       13.Rf5 Ke3+ 14.Kg3 (24.871.239) 370 

19.01  2:48   +0.54    1.Rb5 Rb1+ 2.Kh2 Rb2+ 3.Kh3 Rb1 
                       4.Rf5+ Ke4 5.Rf6 Rxb3+ 6.Kg4 Ke5 
                       7.Rxh6 Rb4+ 8.Kg5 Rxa4 9.Rf6 Ra3 
                       10.Rf5+ Kd4 11.Kf4 Ra1 12.Kg3 Rg1+ 
                       13.Kh4 Ke4 14.Rc5 (62.322.485) 370 

best move: Ra5-b5 time: 3:53.893 min  n/s: 371.000  nodes: 86.311.993
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