Is this study correct?

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Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Is this study correct?

Post by Arpad Rusz » Mon Nov 26, 2018 12:25 pm

Could you help me to check the correctness of this study?
Is the initial position a win at all? If yes, are there any alternative winning moves for white at some point?
Thanks!

[pgn][Event "Joita MT (1st Honourable Mention)"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Rusz, Árpád"]
[Black "?"]
[Result "1-0"]
[Annotator "1st Honourable Mention"]
[SetUp "1"]
[FEN "7n/p1p2p2/2B2R1p/P6P/P5b1/6Pp/2K2P1P/k2r4 w - - 0 1"]
[PlyCount "15"]
[EventDate "2018.??.??"]

1. Bf3 $1 ({Logical try:} 1. Rf4 $2 Rd6 $1 $19) (1. f3 $2 Rf1 $1 $11) 1... Rd4
(1... Bxf3 2. Rxf3 {Saavedra's double attack (echo)} Rh1 3. Ra3#) (1... Rd6 2.
Rxd6 Bf5+ 3. Rd3 $1 $18) 2. Kc3 $1 (2. Bxg4 $2 Rxg4 3. Rxh6 Rg8 4. Ra6 Ra8 $11)
2... Rxa4 3. Kb3 Bd7 $1 (3... Rd4 4. Bxg4 Rxg4 5. Rc6 Kb1 6. Rxc7 $18) 4. Bc6
$1 Rd4 (4... Bxc6 5. Rxc6 {Saavedra's double attack (echo)} Rxa5 6. Rc1#) 5.
Kc3 $1 (5. Bxd7 $2 Rxd7 6. Rxh6 Rd8 $11) 5... Rd1 6. Kc2 Bg4 {We are back to
the initial position but without the a4 pawn!} (6... Rd4 7. Bxd7 Rxd7 8. Rf4 $1
$18) 7. Rf4 $1 Rd6 8. Ra4# 1-0[/pgn]

peter
Posts: 1786
Joined: Sat Feb 16, 2008 6:38 am
Full name: Peter Martan

Re: Is this study correct?

Post by peter » Mon Nov 26, 2018 5:15 pm

Hi Arpad!
Arpad Rusz wrote:
Mon Nov 26, 2018 12:25 pm
Could you help me to check the correctness of this study?
Is the initial position a win at all? If yes, are there any alternative winning moves for white at some point?
...
I guess it's ok, even if the solution- line is a little short one shortcut compared to the given "sideline" 4...Rd4 or other sidelines from black deviations like in this output- line after Backward:

7n/p1p2p2/2B2R1p/P6P/P5b1/6Pp/2K2P1P/k2r4 w - - 0 1

Analysis by Cfish 210718 64 POPCNT NUMA:

1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 7.Kd2 Kb2 8.Rb5+ Ka3 9.Rb8 Rd6+ 10.Ke3 f5 11.Bxf5 Nf7 12.g4 Rd1 13.f4 Nd6 14.Bd3 Rh1 15.g5 Rxh2 16.gxh6 Rb2 17.Rxb2 Kxb2 18.h7 Nf7 19.Kf2 h2 20.Kg2 Nh8 21.Bg6 h1B+ 22.Kxh1 c5 23.f5 c4 24.f6 c3 25.Kg2 c2 26.f7 c1Q 27.f8Q Qd2+ 28.Kf3 Qd1+ 29.Ke4 Qc2+ 30.Ke3 Qc3+ 31.Ke2 a5 32.Qf4 Kb3 33.Qb8+ Ka3 34.Qd6+ Kb2 35.Bd3 a4 36.Qd5 Ka3
+- (3.24) Depth: 43/81 00:04:51 8229MN, tb=10238637

CFish with 6men Syzygys doesn't find duals up to move nr.5, neither in the sideline 3...Rd4, further on I didn't search for such.
Peter.

Vinvin
Posts: 4394
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Is this study correct?

Post by Vinvin » Mon Nov 26, 2018 8:47 pm

SF finds this improvement : 3...Rd4! instead of 3...Bd7?
The score stays around +1.20. Possible draw ?

Dann Corbit
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Location: Redmond, WA USA
Contact:

Re: Is this study correct?

Post by Dann Corbit » Mon Nov 26, 2018 8:52 pm

Last move is correct:
acd 36; acs 0; bm Ra4#; c3 "Ra4#"; ce 32766; pm Ra4#; pv Ra4#;

Defense for the prior ply is not correct (Be6 still loses, but lasts much longer than Rd6):
acd 36; acs 1422; bm Be6; c3 "Rd6"; ce -5804; pm Be6; pv Be6 Ra4+ Ba2 Kxd1 Kb2 Rb4+ Kc3 Rb8 Bb3+ Ke1 Bc4 Rxh8 Kd4 Rxh6 Ke5 f4+ Kf5 Kd2 f6 Bd7+ Ke4 Rxf6 Bg8 Bc6+ Kd4 h6 Kc5 Rf8 Bh7 Rf7 Bg6 Rxc7 Kb4 Rxa7 Kc5;

Suggested move Rf4 was correct:
acd 36; acs 213; bm Rf4; c3 "Rf4"; ce 6367; pm Rf4; pv Rf4 Be6 Ra4+ Ba2 Kxd1 Kb2 Rb4+ Kc3 Rb8 Bb3+ Ke1 Ng6 hxg6 fxg6 Ra8 a6 Rxa6 Kb4 Ra7 Bc4 Kd2 Kc5 Bf3 c6 Rb7 Ba6 Rb8 h5 Be2 Kd6 Bxa6 g5 Bc4 Kc7 Rg8 Kb7 a6+ Ka7 Rg7+ Kb8 Rxg5 Ka7 Rg7+ Kb6 a7 Kc5 Rg5+ Kb6 a8=Q;

There are several other sub-optimal moves. I suspect that this is one of those puzzles where all the moves are supposed to adhere to some theme. Quite frankly, if they are not the best moves, then I think that the puzzle could be better designed. But I am not one of those puzzle people who likes the themes. I just want to find the best path to victory, defeat, or draw.

However, the key move is clearly the correct move. So in that sense, the puzzle is correct.
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.

peter
Posts: 1786
Joined: Sat Feb 16, 2008 6:38 am
Full name: Peter Martan

Re: Is this study correct?

Post by peter » Mon Nov 26, 2018 9:42 pm

Vinvin wrote:
Mon Nov 26, 2018 8:47 pm
SF finds this improvement : 3...Rd4! instead of 3...Bd7?
The score stays around +1.20. Possible draw ?
No, Vincent, I had that in my Backward with CFish too, the winning eval of the final output- line came from there ff.
In your line 7.Rc8 is ?, 7.Rc6 instead:



Analysis by Cfish 210718 64 POPCNT NUMA:

7...Rg8 8.Rxa6 Kc1 9.Rd6 f5 10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Kd3 13.h6 Rb8+ 14.Ka3 Rh8 15.h7 Rxh7 16.Re7 Kc4 17.Ka4 Kd5 18.a6 Kd6 19.Rb7 Kc6 20.Kb4 Rg7 21.Re7 Kd6 22.a7 Kxe7 23.a8Q Rh7 24.Qg8 Rh6 25.Kc5 Kf6 26.g4 fxg4 27.Qxg4 Ke7 28.Kd4 Nd6 29.Ke3 Nf7 30.Kf2 Kf8 31.Kf3 Rb6 32.Qc8+ Kg7 33.Kg4 Rf6 34.Kg3 Rh6 35.f5 Kh7 36.Qc3 Kg8 37.Kg4 Kh7
+- (3.49) Depth: 41/75 00:02:39 4981MN, tb=18102483

Of course you cannot trust an output- line like this very far, but at about move nr.15 or soon after, white h- und a- pawn are free and cannot both be stopped from promoting without any sacrifices from Black, that seems to be more or less forced.
Last edited by peter on Mon Nov 26, 2018 10:03 pm, edited 4 times in total.
Peter.

Dann Corbit
Posts: 10205
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Is this study correct?

Post by Dann Corbit » Mon Nov 26, 2018 9:47 pm

My data records for this puzzle (in each case, c3 holds the suggested move):

Code: Select all

7n/p1p2p2/2Br3p/P6P/5Rb1/6Pp/2K2P1P/k7 w - - acd 36; acs 0; bm Ra4+; c3 "Ra4#"; ce 32766; pm Ra4+; pv Ra4+ hxh2=Q; 
7n/p1p2p2/2B4p/P6P/5Rb1/6Pp/2K2P1P/k2r4 b - - acd 36; acs 1422; bm Be6; c3 "Rd6"; ce -5804; pm Be6; pv Be6 Ra4+ Ba2 Kxd1 Kb2 Rb4+ Kc3 Rb8 Bb3+ Ke1 Bc4 Rxh8 Kd4 Rxh6 Ke5 f4+ Kf5 Kd2 f6 Bd7+ Ke4 Rxf6 Bg8 Bc6+ Kd4 h6 Kc5 Rf8 Bh7 Rf7 Bg6 Rxc7 Kb4 Rxa7 Kc5; 
7n/p1p2p2/2B2R1p/P6P/6b1/6Pp/2K2P1P/k2r4 w - - acd 36; acs 213; bm Rf4; c3 "Rf4"; ce 6367; pm Rf4; pv Rf4 Be6 Ra4+ Ba2 Kxd1 Kb2 Rb4+ Kc3 Rb8 Bb3+ Ke1 Ng6 hxg6 fxg6 Ra8 a6 Rxa6 Kb4 Ra7 Bc4 Kd2 Kc5 Bf3 c6 Rb7 Ba6 Rb8 h5 Be2 Kd6 Bxa6 g5 Bc4 Kc7 Rg8 Kb7 a6+ Ka7 Rg7+ Kb8 Rxg5 Ka7 Rg7+ Kb6 a7 Kc5 Rg5+ Kb6 a8=Q; 
7n/p1pb1p2/2B2R1p/P6P/8/6Pp/2K2P1P/k2r4 b - - acd 36; acs 1180; bm Rb1; c3 "Bg4"; ce -917; pm Rb1; pv Rb1 Bxd7 Ka2 Bxh3 Rb8 Rxh6 Ka3 Kc3 c6 Bf1 Rb3+ Kd4 Rb8 Rxc6 Kb4 a6 Rd8+ Ke3 Rd5 Rc7 Rxh5 Rxa7 Kc5 Rc7+ Kd6 Rc8 Re5+ Kd4 Ng6 a7 Rd5+ Kc3 Ra5 a8=Q Rxa8 Rxa8 Ne5 f4 Ng4 Be2 Ne3 Kd4 Nc2+ Kd3 Nb4+ Ke4 f6 Kf5 Nc6 Kxf6 Nd4 Bc4; 
7n/p1pb1p2/2B2R1p/P6P/8/2K3Pp/5P1P/k2r4 w - - acd 36; acs 630; bm Kc2; c3 "Kc2"; ce 952; pm Kc2; pv Kc2 Rb1 Bxd7 Rb8 Bxh3 Ka2 Rxh6 Ka3 Kc3 Rb3+ Kc4 Rb4+ Kc5 Rb8 Bf5 Ka4 Bd3 c6 Rxc6 f5 Rc7 f4 g4 Kb3 Rxa7 Rc8+ Kd4 Rd8+ Ke4 Kb4 g5 Kc5 Bc2 Rd4+ Kf3 Nf7 Rxf7 Rd8 Kxf4 Kd6 g6 Rh8 Kg5; 
7n/p1pb1p2/2B2R1p/P6P/3r4/2K3Pp/5P1P/k7 b - - acd 36; acs 918; bm Rd1; c3 "Rd1"; ce -976; pm Rd1; pv Rd1 Kc2 Re1 Bxd7 Rb1 Bxh3 Rb8 Rxh6 Ka2 Kc3 Ka3 Bf5 Ka4 Bd3 c5 Bc4 Re8 Bb3+ Kb5 Bd5 Rb8 Bc4+ Ka4 Rc6 f6 Rxf6 Rb1 Bd3 Rb3+ Kc4 Rb4+ Kxc5 Rb8 g4 Rc8+ Kd4 Rg8 Bf5 Kb4 h6 Ng6 Bxg6 a6 g5 Rb8 h7 Rd8+ Ke5 Ka3 Bf5 Rh8 Rxa6; 
7n/p1pb1p2/2B2R1p/P6P/3r4/1K4Pp/5P1P/k7 w - - acd 36; acs 215; bm Kc3; c3 "Kc3"; ce 986; pm Kc3; pv Kc3 Rd1 Kc2 Re1 Bxd7 Rb1 Rxh6 Rb8 Bxh3 Ka2 Kc3 Ka3 Bf5 Rb5 Bd3 Rb3+ Kc4 Rb8 Rc6 Ka4 a6 Rb5 h6 f5 Rxc7 Ng6 h7 Ne5+ Kd4 Nf3+ Ke3 Rb8 Rxa7 Ng5 Rb7 Ra8 Bf1 Nxh7 Rxh7 f4+ Kxf4; 
7n/p1pb1p2/2B2R1p/P6P/r7/1K4Pp/5P1P/k7 b - - acd 36; acs 417; bm Rxa5; c3 "Rd4"; ce -825; pm Rxa5; pv Rxa5 Bxd7 c6 Rxh6 Rb5+ Kc4 Rb8 Rxc6 a5 Rc5 Kb2 Rxa5 Kc2 Bxh3 Kd1 Ra7 Ke2 f4 Rb6 Bg4+ Ke3 Bf5 Rb8 Kc5 Ke2 Ra2+ Ke3 Ra3+ Kd2 g4 f6 Be6 Rb7 g5 Rh7 h6 fxg5 fxg5 Re7 Kd6 Re8 Kd7 Rf8 h4 Ng6 h5 Rf4 Kd6; 
7n/p1pb1p2/5R1p/P6P/r7/1K3BPp/5P1P/k7 w - - acd 36; acs 251; bm Bc6; c3 "Bc6"; ce 862; pm Bc6; pv Bc6 Rxa5 Bxd7 c6 Rxh6 Rb5+ Kc4 Rd5 Bxh3 Rd8 Kc3 Kb1 Rxc6 Kc1 Bg4 Rd5 Ra6 Rc5+ Kd4 Rb5 Rxa7 Kc2 Be2 Rb4+ Bc4 Rb8 Bd3+ Kb3 Rc7 Rd8+ Ke3 Kb4 g4 Ka5 g5 Kb6 Rc2 Ra8 Kf4 Ra3 Bf5 Ka5 Rc8 Kb4 Kg4 Ra5 h6 Rc5 Rb8+ Kc3 Rd8 Kb4 h7; 
7n/p1p2p2/5R1p/P6P/r5b1/1K3BPp/5P1P/k7 b - - acd 36; acs 57; bm Rd4; c3 "Bd7"; ce -112; pm Rd4; pv Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb2 Rxh3 Kc4 Ka3 Rb5 g4 Rxa5+ Kb2 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Rd3+ Ke7 g5 Rh4 Rb3 Rh5 Re3+ Kf8 Rg3 Rh4 f6 Kg8; 
7n/p1p2p2/5R1p/P6P/r5b1/2K2BPp/5P1P/k7 w - - acd 36; acs 15; bm Kb3; c3 "Kb3"; ce 130; pm Kb3; pv Kb3 Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb2 Rxh3 Kc4 Ka3 Rb5 g4 Rxa5+ Kb2 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Kb2 a5 Ra3 Rb4+ Kc3 Rf4 Rxa5 Rf3+ Kd4 Rxh3 Ra6+ Ke7 Ke5 Kf8 g5 Kg7 Ra7 Re3+ Kf4 Re2 g6 Rf2+ Kg4; 
7n/p1p2p2/5R1p/P6P/P2r2b1/2K2BPp/5P1P/k7 b - - acd 36; acs 7; bm Rxa4; c3 "Rxa4"; ce -114; pm Rxa4; pv Rxa4 Kb3 Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb1 Rxh3 Kc4 Ka3 Ra1+ Kb2 Rxa5 g4 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Kb2 a5 Ra3 Rb4+ Kc3 Rf4 Rxa5 Rf3+ Kd4 Rxh3 Ra6+ Ke7 Ke5 Rc3 f6+ Kd7 Ra7+ Ke8 Re7+ Kf8 Rb7 Rc8 Ra7 Re8+ Kf4 Kg8 g5 Rc8 Ke3 Kf8; 
7n/p1p2p2/5R1p/P6P/P2r2b1/5BPp/2K2P1P/k7 w - - acd 36; acs 19; bm Kc3; c3 "Kc3"; ce 112; pm Kc3; pv Kc3 Rxa4 Kb3 Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb1 Rxh3 Kc4 Ka3 Rb3+ Ka2 Rb5 g4 Rxa5+ Kb2 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Kb2 a5 Ra3 Rb4+ Kc3 Rf4 Rxa5 Rf3+ Kd4 Rxh3 Ra6+ Ke7 Ke5 Rc3 f6+ Kd7 Ra7+ Ke8 Re7+ Kf8 Rb7 Kg8 g5 Rc5+ Kf4 Rc4+ Kf5 Rc5+ Kg4; 
7n/p1p2p2/5R1p/P6P/P5b1/5BPp/2K2P1P/k2r4 b - - acd 36; acs 18; bm Rd4; c3 "Rd4"; ce -111; pm Rd4; pv Rd4 Kc3 Rxa4 Kb3 Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb1 Rxh3 Kc4 Ka3 Ra1+ Kb2 Rxa5 g4 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Kb2 a5 Ra3 Rb4+ Kc3 Rf4 Rxa5 Rf3+ Kd4 Rxh3 Ra6+ Ke7 Ke5 Rc3 f6+ Kd7 Ra7+ Ke8; 
7n/p1p2p2/2B2R1p/P6P/P5b1/6Pp/2K2P1P/k2r4 w - - acd 36; acs 2; bm Bf3; c3 "Bf3"; c6 Arves.08150; ce 112; pm Bf3; pv Bf3 Rd4 Kc3 Rxa4 Kb3 Rd4 Bxg4 Rxg4 Rc6 Kb1 Rxc7 a6 Rc8 Rg5 Rxh8 Rxh5 Ka4 Kc2 Rc8+ Kd3 Rc6 Rf5 f4 Rb5 Rxh6 Rb1 Rxh3 Kc4 Ka3 Ra1+ Kb2 Rxa5 g4 Rb5+ Kc2 Ra5 Rc3+ Kd5 h3 Ra4 f5 Kd6 Kb2 a5 Ra3 Rb4+ Kc3 Rf4 Rxa5 Rf3+ Kd4 Rxh3 Ra6+ Ke7 Ke5 Rc3 f6+ Kd7 Ra7+ Ke8 Re7+ Kf8 Rb7 Kg8 g5 Rc5+ Kf4; 
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.

peter
Posts: 1786
Joined: Sat Feb 16, 2008 6:38 am
Full name: Peter Martan

Re: Is this study correct?

Post by peter » Wed Nov 28, 2018 6:14 am

peter wrote:
Mon Nov 26, 2018 9:42 pm
Vinvin wrote:
Mon Nov 26, 2018 8:47 pm
SF finds this improvement : 3...Rd4! instead of 3...Bd7?
Had to return to that after some other things I needed my best hardware for at first.
Arpad Rusz wrote:
Mon Nov 26, 2018 12:25 pm
Did let Backward run a little longer, to get an even somewhat clearer output- line and eval after

1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 10.Rxh6

Here's the result:


Analysis by Cfish 241118 64 POPCNT NUMA:

10...Nf7 11.Rf6 Rb8+ 12.Kc3 Rc8+ 13.Kb4 Ne5 14.Rxf5 Nc6+ 15.Ka3 Kd2 16.Rc5 Kd3 17.h6 Kd4 18.Rh5 Rh8 19.Ka4 Rh7 20.a6 Ke4 21.Rxh3 Kf5 22.f4 Na7 23.Rh5+ Ke4 24.Ka5 Nc8 25.Kb5 Kf3 26.Kc5 Kg4 27.Rg5+ Kf3 28.Rg6 Ke4 29.Rg8 Rc7+ 30.Kb4 Nb6 31.Rg7 Nd5+ 32.Ka5
+- (5.52) Depth: 36/56 00:02:04 3751MN, tb=9964345
...
10...Nf7 11.Rf6
+- (6.33 --) Depth: 37/54 00:04:25 8042MN, tb=19307395

Then I did let CFish with 24 threads of a 12x3GHz CPU at 90'+30" and 6men Syzygys play out from this line and position onwards:


Evals/depths to be seen in "quote".

The study is fully correct, and the closer I look at it, is the more I like it. At first glance it just looked a little bit too complicated for me, but that's the only alternative to being too easy of course.
:)
Thanks for the fine piece of art, Árpád!
Peter.

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Eelco de Groot
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Location: Groningen

Re: Is this study correct?

Post by Eelco de Groot » Tue Dec 11, 2018 4:30 pm

I found I had an engine running on the start position, it has learned a bit about Vincent's sideline so it knows that is also won, but no other learning. It was at 19000 minutes so is about time to shut it down. Just to independantly confirm that Peter's line is winning here last full PV



77/129 14956:34+5.29 1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4
4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6
7.Rc6 f6 8.Rxa6 Nf7 9.Rxf6 Ne5
10.Rxh6 Rg7 11.Rd6 Kc1 12.h6 Rh7
13.Rd5 Ng4 14.Rh5 (2008.962.248.587) 2238

Code: Select all

7n/p1p2p2/2B2R1p/P6P/P5b1/6Pp/2K2P1P/k2r4 w - -

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

26/39  0:01   +1.85    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.f4 Kxa4 9.Kc4 Rd8 10.Rxa7 Rd4+ 
                       11.Kxc5 Rxf4 12.Ra8 Ng6 13.hxg6 Rf5+ 
                       14.Kc6 (3.727.765) 2127 

27/52  0:02   +2.19    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.f4 Kxa4 9.Kc4 Rd8 10.Rxa7 Rd4+ 
                       11.Kxc5 Rxf4 12.Ra8 Ng6 13.hxg6 Rf5+ 
                       14.Kc6 (5.112.453) 2149 

28/51  0:02   +2.24    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.Kc4 Kxa4 9.f4 Rb8 10.Rxa7 Rb4+ 
                       11.Kxc5 Rb2 12.a6 Rxh2 13.Rb7 Rc2+ 
                       14.Kd5 (5.834.899) 2166 

29/49  0:03   +2.14--  1.Bf3 Rd4 (6.631.165) 2167 

29/49  0:03   +2.04--  1.Bf3 Rd4 (7.172.660) 2168 

29/53  0:03   +2.14++  1.Bf3 (7.937.522) 2170 

29/56  0:03   +1.91--  1.Bf3 Rd4 (8.635.900) 2178 

29/56  0:04   +2.12++  1.Bf3 (9.390.828) 2177 

29/56  0:04   +2.16    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.f4 Ka3 9.h6 Kxa4 10.Kxc4 Rc8+ 
                       11.Kd3 Ra8 12.h7 Kb5 13.Rh6 Kxa5 
                       14.f5 (9.735.648) 2175 

30/53  0:04   +2.26++  1.Bf3 (10.062.540) 2177 

30/66  0:04   +2.07--  1.Bf3 Rd4 (10.685.868) 2184 

30/66  0:05   +2.21++  1.Bf3 (11.053.297) 2187 

30/66  0:05   +2.26    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.f4 Ka3 9.Kxc4 Kxa4 10.h6 Rc8+ 
                       11.Kd3 Ra8 12.h7 Kb5 13.Rh6 Kxa5 
                       14.f5 (11.582.599) 2190 

31/57  0:05   +2.36++  1.Bf3 (12.620.982) 2184 

31/57  0:06   +2.42    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.f4 Ka3 9.Kxc4 Kxa4 10.h6 Rc8+ 
                       11.Kd3 Ra8 12.h7 Kb5 13.Rh6 Kxa5 
                       14.f5 (13.693.590) 2181 

32/58  0:07   +2.33--  1.Bf3 Rd4 (16.092.536) 2193 

32/58  0:07   +2.23--  1.Bf3 Rd4 (16.742.383) 2190 

32/58  0:07   +2.10--  1.Bf3 Rd4 (17.314.515) 2193 

32/58  0:09   +1.91--  1.Bf3 Rd4 (20.431.666) 2215 

32/58  0:10   +1.67--  1.Bf3 Rd4 (24.368.590) 2220 

32/58  0:11   +1.87++  1.Bf3 (25.364.010) 2223 

32/58  0:11   +1.96    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.Kxc4 Ka3 9.Kd4 Kxa4 10.f4 Kb5 
                       11.Rh6 Kxa5 12.f5 Kb4 13.g6 fxg6 
                       14.hxg6 (26.132.381) 2225 

33/39  0:12   +1.96    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.Kxc4 Ka3 9.Kd4 Kxa4 10.f4 Kb5 
                       11.Rh6 Kxa5 12.f5 Kb4 13.g6 fxg6 
                       14.hxg6 (28.897.208) 2228 

34/45  0:14   +2.05++  1.Bf3 (32.319.266) 2228 

34/53  0:14   +2.15++  1.Bf3 (32.699.305) 2230 

34/53  0:14   +2.28++  1.Bf3 (33.112.579) 2230 

34/53  0:14   +2.19    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.f4 Ka3 
                       8.g5 Kxa4 9.Kc4 Rf8 10.f5 Rg8 11.g6 fxg6 
                       12.fxg6 Rg7 13.Kxc5 Re7 14.Kd4 (33.258.590) 2230 

35/43  0:15   +2.29++  1.Bf3 (33.796.943) 2229 

35/49  0:16   +2.10--  1.Bf3 Rd4 (36.396.052) 2224 

35/49  0:17   +1.96--  1.Bf3 Rd4 (39.410.996) 2220 

35/49  0:20   +2.10++  1.Bf3 (46.609.784) 2230 

35/52  0:22   +2.34++  1.Bf3 (50.247.965) 2233 

35/58  0:24   +2.23    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.Kc4 Kb2 7.g4 Rg8 
                       8.Rxa7 Rxg4+ 9.Kxc5 Rh4 10.Kb6 Rxh5 
                       11.a6 Rh6+ 12.Kc7 Rh4 13.a5 Kc3 
                       14.Rb7 (55.408.026) 2233 

36/51  0:25   +2.32++  1.Bf3 (57.260.811) 2231 

36/59  0:27   +2.42++  1.Bf3 (60.933.720) 2230 

36/63  0:28   +2.55++  1.Bf3 (62.624.542) 2232 

36/65  0:29   +2.13--  1.Bf3 Rd4 (66.177.366) 2233 

36/65  0:35   +1.89--  1.Bf3 Rd4 (78.916.349) 2222 

36/77  0:37   +2.16++  1.Bf3 (83.458.214) 2226 

36/77  0:39   +2.26    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Kb1 7.f4 Kc1 
                       8.Kc4 Kd2 9.g5 Ke2 10.f5 Kf3 11.h6 Ke4 
                       12.g6 fxg6 13.fxg6 Rg8 14.g7 (88.213.404) 2227 

37/45  0:40   +2.36++  1.Bf3 (90.960.055) 2222 

37/45  0:41   +2.45++  1.Bf3 (92.538.395) 2221 

37/55  0:42   +2.59++  1.Bf3 (95.294.625) 2222 

37/55  0:43   +2.57    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.Kc4 Ka3 
                       8.g5 Kxa4 9.f4 Rd8 10.Rxa7 Rd2 11.a6 Ka5 
                       12.Ra8 Rxh2 13.Rxh8 Kb6 14.g6 (97.101.297) 2220 

38/57  0:48   +2.66++  1.Bf3 (107.872.727) 2215 

38/64  0:50   +2.47--  1.Bf3 Rd4 (111.811.947) 2218 

38/64  0:54   +2.62++  1.Bf3 (119.453.138) 2212 

38/69  0:55   +2.34--  1.Bf3 Rd4 (123.088.854) 2214 

38/69  0:59   +2.11--  1.Bf3 Rd4 (131.428.738) 2212 

38/69  1:02   +2.33++  1.Bf3 (137.270.863) 2211 

38/69  1:03   +1.81--  1.Bf3 Rd4 (139.925.113) 2213 

38/69  1:11   +2.25++  1.Bf3 (159.969.943) 2224 

38/69  1:16   +2.41    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.Kc4 Kxa4 9.f4 Rb8 10.Rxa7 Rb4+ 
                       11.Kxc5 Rb2 12.a6 Rxh2 13.Rb7 Rc2+ 
                       14.Kd4 (170.702.799) 2229 

39/60  1:20   +2.50++  1.Bf3 (179.529.035) 2224 

39/60  1:22   +2.60++  1.Bf3 (182.516.174) 2225 

39/69  1:23   +2.74++  1.Bf3 (185.534.212) 2227 

39/75  1:27   +2.76    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.Kc4 Rg8 
                       8.Rxa7 Rxg4+ 9.Kxc5 Rg5+ 10.Kb6 Rxh5 
                       11.Rc7 Rh4 12.a6 Rxa4 13.Rc8 Ng6 
                       14.a7 (195.304.027) 2228 

40/53  1:34   +2.66--  1.Bf3 Rd4 (210.374.112) 2228 

40/53  1:35   +2.57--  1.Bf3 Rd4 (213.164.119) 2226 

40/53  1:36   +2.54    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Kb1 7.g5 Kc1 
                       8.Kc4 Kd1 9.f4 Ke2 10.f5 Kf3 11.g6 fxg6 
                       12.fxg6 Rg8 13.Rxa7 Nxg6 14.hxg6 (215.643.129) 2224 

41/61  1:45   +2.63++  1.Bf3 (233.647.613) 2224 

41/61  1:48   +2.73++  1.Bf3 (242.022.862) 2225 

41/66  1:52   +2.74    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Kb1 7.g5 Ka2 
                       8.f4 Ka3 9.Kc4 Kxa4 10.f5 Rg8 11.g6 fxg6 
                       12.hxg6 Rg7 13.Kxc5 Rd7 14.Rd6 (249.842.200) 2224 

42/68  2:08   +2.84++  1.Bf3 (283.411.659) 2210 

42/68  2:20   +2.93++  1.Bf3 (309.603.162) 2204 

42/68  2:43   +2.94    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 c4 
                       8.Kxc4 Ka3 9.f4 Kxa4 10.Kd4 Rc8 
                       11.Rxa7 Rc2 12.a6 Rxh2 13.Rb7 Rd2+ 
                       14.Ke5 (357.407.436) 2192 

43/75  3:15   +3.04++  1.Bf3 (426.343.590) 2178 

43/75  3:45   +3.13++  1.Bf3 (487.197.302) 2158 

43/81  4:11   +3.21    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.f4 Ka3 
                       8.g5 Kxa4 9.Kc4 Rd8 10.Rxa7 Rd4+ 
                       11.Kxc5 Rd2 12.a6 Rxh2 13.Rb7 Rc2+ 
                       14.Kd5 (542.310.230) 2153 

44/61  4:20   +3.12--  1.Bf3 Rd4 (560.139.915) 2152 

44/61  4:31   +3.21++  1.Bf3 (583.427.322) 2148 

44/75  5:12   +3.25    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Kb1 7.g5 Kc1 
                       8.Kc4 Kd1 9.f4 Ke2 10.f5 Kf1 11.g6 fxg6 
                       12.fxg6 Rg8 13.Rxa7 Nxg6 14.hxg6 (666.390.452) 2135 

45/55  5:44   +3.34++  1.Bf3 (731.492.697) 2126 

45/71  5:50   +3.15--  1.Bf3 Rd4 (745.583.869) 2127 

45/71  5:57   +3.01--  1.Bf3 Rd4 (758.954.371) 2125 

45/71  6:01   +2.84--  1.Bf3 Rd4 (767.687.751) 2124 

45/73  6:17   +3.00++  1.Bf3 (800.135.573) 2120 

45/80  6:52   +3.23    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 f6 8.Bf3 Ra6 9.Be2 c5+ 10.Rxc5 Ra4+ 
                       11.Kc3 Ra3+ 12.Kb4 Kb2 13.Rc6 a5+ 
                       14.Kb5 (871.293.964) 2113 

46/75  7:36   +3.33++  1.Bf3 (958.986.297) 2101 

46/80  9:02   +3.42++  1.Bf3 (1.130.473.301) 2085 

46/80  10:30  +3.42    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Kb1 7.g5 Ka2 
                       8.Kc4 Ka3 9.f3 Kxa4 10.f4 Rd8 
                       11.Rxa7 Rd4+ 12.Kxc5 Rd2 13.a6 Rxh2 
                       14.Rb7 (1.304.491.025) 2069 

47/75  10:53  +3.33--  1.Bf3 Rd4 (1.354.791.726) 2072 

47/75  11:08  +3.42++  1.Bf3 (1.386.925.577) 2075 

47/77  12:22  +3.54    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.Kc4 Re8 9.Rxa7 Kxa4 10.f4 Re4+ 
                       11.Kxc5 Re2 12.a6 Rxh2 13.Rb7 Rc2+ 
                       14.Kd5 (1.550.138.526) 2088 

48/67  12:51  +3.45--  1.Bf3 Rd4 (1.614.158.418) 2093 

48/67  12:59  +3.35--  1.Bf3 Rd4 (1.633.642.470) 2094 

48/67  13:07  +3.26    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.Kc4 Re8 9.Rxa7 Kxa4 10.f4 Re4+ 
                       11.Kxc5 Re2 12.Rb7 Rxh2 13.a6 Rc2+ 
                       14.Kd5 (1.649.610.626) 2095 

49/66  13:25  +3.16--  1.Bf3 Rd4 (1.690.152.948) 2098 

49/83  13:40  +3.26++  1.Bf3 (1.723.125.821) 2100 

49/83  14:18  +3.39++  1.Bf3 (1.807.885.587) 2104 

49/85  16:53  +3.58++  1.Bf3 (2.113.493.427) 2084 

49/89  18:42  +3.59    1.Bf3 Rd4 2.Kc3 c5 3.Bxg4 Rxg4 
                       4.Rxh6 Rg8 5.Ra6 Ra8 6.g4 Ka2 7.g5 Ka3 
                       8.Kc4 Re8 9.Rxa7 Kxa4 10.f4 Re4+ 
                       11.Kxc5 Re2 12.a6 Rxh2 13.Rb7 Rc2+ 
                       14.Kd5 (2.330.656.354) 2075 

50/64  19:11  +3.49--  1.Bf3 Rd4 (2.393.813.822) 2078 

50/78  20:57  +3.59++  1.Bf3 (2.609.636.138) 2076 

50/78  25:24  +3.39--  1.Bf3 Rd4 (3.144.940.202) 2063 

50/78  26:10  +3.56++  1.Bf3 (3.235.334.346) 2059 

50/90  27:18  +3.49    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 Kb2 9.Ra5 Rc6 
                       10.Bxh3 Rc2 11.Kf3 f6 12.Be6 Rc6 
                       13.Bd5 Rb6 14.Rxa7 (3.367.420.538) 2054 

51/59  29:50  +3.59++  1.Bf3 (3.662.810.288) 2046 

51/69  31:19  +3.39--  1.Bf3 Rd4 (3.839.491.462) 2043 

51/69  32:13  +3.54++  1.Bf3 (3.951.734.860) 2043 

51/75  33:54  +3.72++  1.Bf3 (4.150.310.952) 2039 

51/90  39:36  +3.67    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 Kb2 9.Ra5 Rc6 
                       10.Bxh3 Rc2 11.Kf3 Rc6 12.Bd7 Rd6 
                       13.Bf5 a6 14.Rc5 (4.831.746.939) 2033 

52/80  41:39  +3.58--  1.Bf3 Rd4 (5.085.257.038) 2034 

52/80  43:26  +3.67++  1.Bf3 (5.305.003.832) 2035 

52/84  46:40  +3.81++  1.Bf3 (5.706.050.937) 2037 

52/84  47:37  +3.79    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 f6 9.Ra5+ Kb2 
                       10.Rxa7 Rc6 11.Bd7 Rc2 12.Be6 Re2+ 
                       13.Kf5 Rxf2+ 14.Kg4 (5.817.596.216) 2035 

53/81  51:13  +3.69--  1.Bf3 Rd4 (6.257.854.701) 2035 

53/81  51:51  +3.79++  1.Bf3 (6.332.909.436) 2035 

53/85  55:46  +3.92++  1.Bf3 (6.815.103.158) 2036 

53/85  65:37  +3.95    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Kb2 8.Rb5+ Ka3 9.Rb8 Rd6+ 
                       10.Ke3 Ng6 11.hxg6 fxg6 12.Rb7 a5 
                       13.Bxh3 a4 14.Bf1 (8.001.055.186) 2032 

54/83  72:29  +4.04++  1.Bf3 (8.880.298.268) 2041 

54/84  81:59  +3.85--  1.Bf3 Rd4 (10.023.170.652) 2037 

54/84  85:20  +4.00++  1.Bf3 (10.416.484.454) 2034 

54/91  87:09  +3.81    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 Kb2 9.Ra5 a6 
                       10.Bxh3 Kb3 11.Bf1 f6 12.Rxa6 Nf7 
                       13.Kf5 Rd2 14.f4 (10.627.635.220) 2032 

55/63  88:49  +3.90++  1.Bf3 (10.832.153.859) 2032 

55/63  89:57  +4.00++  1.Bf3 (10.969.701.449) 2032 

55/82  94:39  +3.71--  1.Bf3 Rd4 (11.538.979.633) 2031 

55/82  95:57  +3.92++  1.Bf3 (11.708.826.451) 2033 

55/85  109:50 +4.15++  1.Bf3 (13.441.101.486) 2039 

55/85  119:16 +4.08    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Kb2 8.Rb5+ Ka3 9.Rb8 Ng6 
                       10.hxg6 Rxg6 11.Bxh3 Rd6+ 12.Ke3 a5 
                       13.Rb7 a4 14.Rxc7 (14.657.732.060) 2048 

56/80  126:17 +3.99--  1.Bf3 Rd4 (15.502.768.862) 2045 

56/80  127:50 +3.89--  1.Bf3 Rd4 (15.688.609.917) 2045 

56/80  131:02 +3.99++  1.Bf3 (16.071.753.069) 2044 

56/80  137:16 +4.17++  1.Bf3 (16.808.131.550) 2040 

56/110 203:22 +4.20    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Kb2 8.Rb5+ Kc1 9.Rb8 Ng6 
                       10.hxg6 fxg6 11.Bxh3 Rc2 12.Ke3 Rc3+ 
                       13.Ke2 Rc2+ 14.Ke1 (24.794.773.720) 2031 

57/61  213:21 +4.30++  1.Bf3 (26.004.805.999) 2031 

57/100 220:59 +4.39++  1.Bf3 (26.994.455.629) 2035 

57/107 247:27 +4.40    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 Re6+ 9.Kf4 Rc6 
                       10.Bxh3 Kb2 11.Rb5+ Kc3 12.Bf5 Rf6 
                       13.Rc5+ Kd4 14.Rxc7 (30.259.412.854) 2038 

58/89  316:08 +4.31--  1.Bf3 Rd4 (38.487.338.987) 2029 

58/92  317:31 +4.40++  1.Bf3 (38.674.109.273) 2029 

58/120 324:25 +4.37    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (39.618.529.532) 2035 

59/78  327:48 +4.28--  1.Bf3 Rd4 (40.071.398.505) 2037 

59/83  328:34 +4.37++  1.Bf3 (40.174.283.757) 2037 

59/86  330:33 +4.18--  1.Bf3 Rd4 (40.443.621.635) 2039 

59/94  331:01 +4.35++  1.Bf3 (40.506.761.920) 2039 

59/94  331:42 +4.00--  1.Bf3 Rd4 (40.599.409.813) 2039 

59/94  332:13 +4.29++  1.Bf3 (40.669.453.953) 2040 

59/94  333:24 +4.31    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (40.826.695.986) 2040 

60/75  336:01 +4.21--  1.Bf3 Rd4 (41.175.763.748) 2042 

60/94  338:00 +4.31++  1.Bf3 (41.444.220.986) 2043 

60/96  340:50 +4.44++  1.Bf3 (41.827.372.301) 2045 

60/109 350:44 +4.44    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (43.190.700.775) 2052 

61/75  353:42 +4.35--  1.Bf3 Rd4 (43.564.523.747) 2052 

61/83  355:10 +4.44++  1.Bf3 (43.763.245.584) 2053 

61/106 359:44 +4.25--  1.Bf3 Rd4 (44.393.379.639) 2056 

61/106 360:54 +4.41++  1.Bf3 (44.551.251.975) 2057 

61/117 425:14 +4.45    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Rh8 
                       13.a6 Kd3 14.Kb4 (53.297.889.203) 2088 

62/107 450:25 +4.36--  1.Bf3 Rd4 (56.524.885.095) 2091 

62/107 451:43 +4.26--  1.Bf3 Rd4 (56.697.718.176) 2091 

62/107 454:28 +4.36++  1.Bf3 (57.033.658.783) 2091 

62/107 494:52 +4.37    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Kb2 8.Rb5+ Ka3 9.Rb8 Rd6+ 
                       10.Ke3 Ng6 11.hxg6 Rxg6 12.Bxh3 a5 
                       13.Rb7 Rc6 14.Bd7 (62.015.811.432) 2088 

63/84  522:48 +4.27--  1.Bf3 Rd4 (65.608.443.004) 2091 

63/84  526:37 +4.17--  1.Bf3 Rd4 (66.106.916.616) 2092 

63/84  529:14 +4.27++  1.Bf3 (66.464.940.758) 2093 

63/84  538:21 +4.45++  1.Bf3 (67.679.128.612) 2095 

63/91  557:54 +4.37    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Rh8 
                       13.a6 Kd3 14.Kb4 (70.397.320.626) 2103 

64/99  574:51 +4.47++  1.Bf3 (72.578.007.399) 2104 

64/105 576:43 +4.37    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Rh8 
                       13.a6 Kd3 14.Kb4 (72.827.960.295) 2104 

65/100 588:16 +4.47++  1.Bf3 (74.372.263.131) 2107 

65/109 717:10 +4.57++  1.Bf3 (90.806.402.983) 2110 

65/123 815:27 +4.28--  1.Bf3 Rd4 (103.700.916.720) 2119 

65/123 829:24 +4.49++  1.Bf3 (105.506.332.568) 2120 

65/123 1007:26+4.37    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Rh8 
                       13.a6 Kd3 14.Kb4 (127.724.148.846) 2113 

66/81  1020:41+4.47++  1.Bf3 (129.420.558.201) 2113 

66/82  1033:36+4.57++  1.Bf3 (131.228.212.229) 2116 

66/98  1082:31+4.70++  1.Bf3 (137.879.120.642) 2122 

66/127 1095:26+4.28--  1.Bf3 Rd4 (139.711.862.100) 2125 

66/127 1098:40+4.04--  1.Bf3 Rd4 (140.145.157.731) 2125 

66/127 1103:24+4.31++  1.Bf3 (140.761.424.044) 2126 

66/127 1106:53+3.75--  1.Bf3 Rd4 (141.245.707.365) 2126 

66/127 1111:57+4.21++  1.Bf3 (141.962.170.717) 2127 

66/129 1133:10+4.62    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (144.976.360.215) 2132 

67/88  1157:58+4.70    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (148.361.772.406) 2135 

68/114 1169:01+4.61--  1.Bf3 Rd4 (149.797.973.753) 2135 

68/114 1176:44+4.51--  1.Bf3 Rd4 (150.862.135.542) 2136 

68/114 1179:59+4.61++  1.Bf3 (151.303.822.789) 2137 

68/114 1187:07+4.37--  1.Bf3 Rd4 (152.289.853.061) 2138 

68/114 1190:09+4.58++  1.Bf3 (152.702.186.377) 2138 

68/114 1222:56+4.51    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8R Rxa8 13.Rxa8 Ke2 
                       14.f4 (156.885.074.409) 2138 

69/86  1235:03+4.42--  1.Bf3 Rd4 (158.461.591.548) 2138 

69/86  1245:52+4.32--  1.Bf3 Rd4 (159.886.585.395) 2138 

69/86  1247:52+4.42++  1.Bf3 (160.152.376.891) 2138 

69/90  1278:02+4.41    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (164.078.386.801) 2139 

70/90  1302:06+4.51++  1.Bf3 (167.271.047.810) 2141 

70/92  1394:20+4.61++  1.Bf3 (179.113.946.354) 2140 

70/111 1822:58+4.74++  1.Bf3 (228.086.844.908) 2085 

70/129 1863:51+4.32--  1.Bf3 Rd4 (233.069.055.276) 2084 

70/129 1876:47+4.08--  1.Bf3 Rd4 (234.620.130.595) 2083 

70/129 1885:18+4.35++  1.Bf3 (235.616.137.369) 2082 

70/129 1920:44+4.71++  1.Bf3 (239.885.023.621) 2081 

70/129 2531:30+4.77    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Kb2 8.Rb5+ Ka3 9.Rb8 Rd6+ 
                       10.Ke3 Ng6 11.hxg6 Rxg6 12.Bxh3 a5 
                       13.Rb7 Rc6 14.Bd7 (311.133.714.718) 2048 

71/105 3095:25+4.87++  1.Bf3 (384.149.618.379) 2068 

71/117 3622:37+4.68--  1.Bf3 Rd4 (450.212.292.849) 2071 

71/117 3647:00+4.82++  1.Bf3 (453.369.683.078) 2071 

71/117 4358:52+5.00++  1.Bf3 (542.278.743.207) 2073 

71/117 4459:55+4.54--  1.Bf3 Rd4 (556.207.286.953) 2078 

71/117 4472:25+4.88++  1.Bf3 (557.921.675.291) 2079 

71/120 4524:54+4.78    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 Rg5 
                       7.Rxa7 Rxh5 8.a6 Ra5 9.Ra8 Kc1 10.a7 Ng6 
                       11.Rc8+ Kd2 12.a8Q Rxa8 13.Rxa8 Ke2 
                       14.f4 (564.710.295.546) 2080 

72/99  4617:39+4.87++  1.Bf3 (576.785.190.685) 2081 

72/106 4706:52+4.97++  1.Bf3 (588.782.454.559) 2084 

72/106 5178:13+5.11++  1.Bf3 (654.432.180.599) 2106 

72/114 5250:55+4.68--  1.Bf3 Rd4 (665.457.997.064) 2112 

72/114 5287:32+4.99++  1.Bf3 (670.854.446.406) 2114 

72/117 5355:06+4.62    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Kd3 
                       13.h6 Rh8 14.h7 (681.356.355.943) 2120 

73/87  5381:07+4.52--  1.Bf3 Rd4 (685.318.352.552) 2122 

73/87  5409:33+4.42--  1.Bf3 Rd4 (689.681.212.354) 2124 

73/102 5442:20+4.52++  1.Bf3 (694.604.758.154) 2127 

73/102 5473:18+4.70++  1.Bf3 (699.165.554.326) 2129 

73/115 5675:21+4.94++  1.Bf3 (728.036.412.748) 2138 

73/129 6854:02+5.16    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rxa5 
                       4.Bxg4 Rb5+ 5.Kc3 Rb6 6.Rf5 Rc6+ 
                       7.Kd4 Rd6+ 8.Ke4 Kb2 9.Ra5 Rd8 
                       10.Bxh3 Ra8 11.Kf4 Kc3 12.Bg2 Rf8 
                       13.Rxa7 c5 14.Kf5 (895.318.967.672) 2177 

74/101 6947:12+5.07--  1.Bf3 Rd4 (908.522.187.497) 2179 

74/101 7042:33+4.97--  1.Bf3 Rd4 (922.352.094.466) 2182 

74/101 7106:23+5.07++  1.Bf3 (931.596.434.067) 2184 

74/115 7199:29+4.84--  1.Bf3 Rd4 (946.084.908.066) 2190 

74/115 7211:19+4.60--  1.Bf3 Rd4 (947.602.697.513) 2190 

74/115 7276:55+4.82++  1.Bf3 (955.652.646.638) 2188 

74/129 8453:15+5.20++  1.Bf3 (1102.331.209.261) 2173 

74/129 9402:31+5.23    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Kd3 
                       13.h6 Rh8 14.h7 (1232.052.169.268) 2183 

75/106 9527:52+5.13--  1.Bf3 Rd4 (1250.514.009.279) 2187 

75/106 9574:57+5.04--  1.Bf3 Rd4 (1256.999.247.013) 2187 

75/106 9587:56+4.90--  1.Bf3 Rd4 (1258.937.870.989) 2188 

75/106 9644:16+5.02++  1.Bf3 (1267.422.151.302) 2190 

75/106 9770:01+5.15    1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Kd3 
                       13.h6 Rh8 14.h7 (1285.621.508.354) 2193 

76/128 10672:04+5.05-- 1.Bf3 Rd4 (1409.062.129.464) 2200 

76/128 10848:36+4.96-- 1.Bf3 Rd4 (1432.500.041.276) 2200 

76/128 10933:27+5.05++ 1.Bf3 (1444.036.735.119) 2201 

76/128 11304:39+5.24++ 1.Bf3 (1496.192.917.567) 2205 

76/129 13086:33+5.24   1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 Rg8 8.Rxa6 Kc1 9.Rd6 f5 
                       10.Rxh6 Kd2 11.Re6 Nf7 12.f4 Kd3 
                       13.h6 Rh8 14.h7 (1737.290.583.115) 2212 

77/121 13336:14+5.14-- 1.Bf3 Rd4 (1772.903.432.685) 2215 

77/121 13403:37+5.04-- 1.Bf3 Rd4 (1782.011.353.967) 2215 

77/121 13428:09+4.91-- 1.Bf3 Rd4 (1785.294.013.334) 2215 

77/121 13532:09+4.73-- 1.Bf3 Rd4 (1798.956.972.539) 2215 

77/121 13557:08+4.49-- 1.Bf3 Rd4 (1802.368.278.949) 2215 

77/121 13603:04+4.68++ 1.Bf3 (1808.499.101.786) 2215 

77/121 13665:21+5.07++ 1.Bf3 (1817.564.639.176) 2216 

77/129 13790:32+4.18-- 1.Bf3 Rd4 (1836.351.444.917) 2219 

77/129 13835:25+4.86++ 1.Bf3 (1842.928.523.145) 2220 

77/129 13911:53+3.61-- 1.Bf3 Rd4 (1854.393.993.695) 2221 

77/129 14034:38+4.56++ 1.Bf3 (1873.271.827.208) 2224 

77/129 14956:34+5.29   1.Bf3 Rd4 2.Kc3 Rxa4 3.Kb3 Rd4 
                       4.Bxg4 Rxg4 5.Rc6 Kb1 6.Rxc7 a6 
                       7.Rc6 f6 8.Rxa6 Nf7 9.Rxf6 Ne5 
                       10.Rxh6 Rg7 11.Rd6 Kc1 12.h6 Rh7 
                       13.Rd5 Ng4 14.Rh5 (2008.962.248.587) 2238 

78/97  15308:58+5.19-- 1.Bf3 Rd4 (2058.468.846.770) 2241 

78/97  15354:38+5.10-- 1.Bf3 Rd4 (2064.531.142.741) 2240 

78/97  15367:34+4.96-- 1.Bf3 Rd4 (2066.269.546.439) 2240 

78/97  15418:38+5.08++ 1.Bf3 (2072.546.787.597) 2240 

78/97  15446:04+4.78-- 1.Bf3 Rd4 (2076.043.408.675) 2240 

78/97  15698:44+5.05++ 1.Bf3 (2107.522.804.439) 2237 

78/117 16368:52+5.42++ 1.Bf3 (2189.258.025.677) 2229 

78/129 16883:31+4.48-- 1.Bf3 Rd4 (2254.352.135.173) 2225 

78/129 17314:19+5.17++ 1.Bf3 (2306.902.506.993) 2220
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

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Is this study correct?

Post by Arpad Rusz » Tue Dec 11, 2018 7:25 pm

Thanks! I am preparing this study (and other 5 ones) for the World Championship so its soundness is very important for me.

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