See: http://linux.die.net/man/2/getrusageFerdy wrote:Can you give an example of how pt is calculated when the engine is using 2 threads?sje wrote:Ferdy wrote:What is the meaning of pt and wt?Code: Select all
bm = best move(s) (zero or more SAN moves) id = identification (quoted string) md = mating distance (full move count, always positive) nc = node count (always unsigned) pd = ply draft (always unsigned) pt = processor time (ddd:hh:mm:ss.mmm, summed over all threads) pv = predicted variation (zero or more SAN moves) ss = symbolic score (signed decimal pawns or MateInN or LoseInN or Even) wt = wall time (elapsed time shown by a clock on the wall)
If the engine is using 1 thread is wt equals pt?
The mate-in-5 problems from BWTC
Moderators: hgm, Dann Corbit, Harvey Williamson
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sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
Re: EPD field labels
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sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
Re: The mate-in-5 problems from BWTC
The search stops when it finds the first mate.Ferdy wrote:When Symbolic analyzed the position is it aware that it is solving for position that is mate in 5? something similar to the uci command,sje wrote:Symbolic's analysis of the above 83 positions:Code: Select all
r3k1nr/pp1n2pp/1bp1N1q1/6B1/2B1p3/8/PPP2RPP/R2Q3K w kq - 0 1 md 5; nc 19900406; pd 9; pt 18.926; pv Qxd7+ Kxd7 Rd1+ Kc8 Rf8+ Qe8 Rxe8+ Bd8 Rexd8#; ss MateIn5; wt 18.904;In the position above, the pt is 18.926, is there any stopping rule that you apply when it found the mate in 5?Code: Select all
go mate n
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sje
- Posts: 4675
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Re: The mate-in-5 problems from BWTC
And using its TABS (traditional A/B search) instead of its mate finder, Symbolic says in less than a second:sje wrote:The search stops when it finds the first mate.Ferdy wrote:When Symbolic analyzed the position is it aware that it is solving for position that is mate in 5? something similar to the uci command,sje wrote:Symbolic's analysis of the above 83 positions:Code: Select all
r3k1nr/pp1n2pp/1bp1N1q1/6B1/2B1p3/8/PPP2RPP/R2Q3K w kq - 0 1 md 5; nc 19900406; pd 9; pt 18.926; pv Qxd7+ Kxd7 Rd1+ Kc8 Rf8+ Qe8 Rxe8+ Bd8 Rexd8#; ss MateIn5; wt 18.904;In the position above, the pt is 18.926, is there any stopping rule that you apply when it found the mate in 5?Code: Select all
go mate n
Code: Select all
[] sf r3k1nr/pp1n2pp/1bp1N1q1/6B1/2B1p3/8/PPP2RPP/R2Q3K w kq - 0 1
[] tabs 1
SI: Iteration 0: begin
PV: [-4.100/3/0.000/17] 1. Ba6 Bxf2 2. Bxb7
PV: [-3.996/2/0.000/93] 1. Be3 Bxe3
PV: [-1.980/3/0.000/188] 1. Bh4 Bxf2 2. Bxf2
PV: [-1.950/3/0.001/205] 1. Kg1 Bxf2+ 2. Kxf2
PV: [-1.850/3/0.001/302] 1. Qd2 Bxf2 2. Qxf2
PV: [-0.433/1/0.001/345] 1. Rd2
PV: [-0.353/1/0.001/351] 1. Rf1
SI: Iteration 0: end
SI: Iteration 1: begin
PV: [-0.683/2/0.001/495] 1. Rf1 Ngf6
PV: [+1.584/5/0.002/940] 1. Nc7+ Bxc7 2. Bf7+ Qxf7 3. Rxf7
SI: Iteration 1: end
SI: Iteration 2: begin
PV: [+1.584/5/0.003/1,507] 1. Nc7+ Bxc7 2. Bf7+ Qxf7 3. Rxf7
PV: [+2.789/9/0.005/3,288] 1. Nxg7+ Qxg7 2. Bf7+ Qxf7 3. Rxf7 Kxf7 4. Qxd7+ Kg6 5. Qxb7
SI: Iteration 2: end
SI: Iteration 3: begin
PV: [+2.789/9/0.013/10,629] 1. Nxg7+ Qxg7 2. Bf7+ Qxf7 3. Rxf7 Kxf7 4. Qxd7+ Kg6 5. Qxb7
PV: [MateIn5/9/0.040/32,723] 1. Qxd7+ Kxd7 2. Rd1+ Kc8 3. Rf8+ Qe8 4. Rxe8+ Bd8 5. Rdxd8#
SI: Iteration 3: end
[MateIn5/9/0.040/32,723] 1. Qxd7+ Kxd7 2. Rd1+ Kc8 3. Rf8+ Qe8 4. Rxe8+ Bd8 5. Rdxd8#-
sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
Re: The mate-in-5 problems from BWTC
The log file gives millisecond resolution for the above:
Note that TABS picked a different terminal mating move.
Code: Select all
2015-08-06 10:06:32.229 < tabs 1
2015-08-06 10:06:32.230 > SI: Iteration 0: begin
2015-08-06 10:06:32.230 > PV: [-4.100/3/0.000/17] 1. Ba6 Bxf2 2. Bxb7
2015-08-06 10:06:32.230 > PV: [-3.996/2/0.000/93] 1. Be3 Bxe3
2015-08-06 10:06:32.262 > PV: [-1.980/3/0.000/188] 1. Bh4 Bxf2 2. Bxf2
2015-08-06 10:06:32.262 > PV: [-1.950/3/0.001/205] 1. Kg1 Bxf2+ 2. Kxf2
2015-08-06 10:06:32.262 > PV: [-1.850/3/0.001/302] 1. Qd2 Bxf2 2. Qxf2
2015-08-06 10:06:32.262 > PV: [-0.433/1/0.001/345] 1. Rd2
2015-08-06 10:06:32.262 > PV: [-0.353/1/0.001/351] 1. Rf1
2015-08-06 10:06:32.262 > SI: Iteration 0: end
2015-08-06 10:06:32.262 > SI: Iteration 1: begin
2015-08-06 10:06:32.262 > PV: [-0.683/2/0.001/495] 1. Rf1 Ngf6
2015-08-06 10:06:32.262 > PV: [+1.584/5/0.002/940] 1. Nc7+ Bxc7 2. Bf7+ Qxf7 3. Rxf7
2015-08-06 10:06:32.262 > SI: Iteration 1: end
2015-08-06 10:06:32.262 > SI: Iteration 2: begin
2015-08-06 10:06:32.262 > PV: [+1.584/5/0.003/1,507] 1. Nc7+ Bxc7 2. Bf7+ Qxf7 3. Rxf7
2015-08-06 10:06:32.262 > PV: [+2.789/9/0.005/3,288] 1. Nxg7+ Qxg7 2. Bf7+ Qxf7 3. Rxf7 Kxf7 4. Qxd7+ Kg6 5. Qxb7
2015-08-06 10:06:32.262 > SI: Iteration 2: end
2015-08-06 10:06:32.262 > SI: Iteration 3: begin
2015-08-06 10:06:32.262 > PV: [+2.789/9/0.013/10,629] 1. Nxg7+ Qxg7 2. Bf7+ Qxf7 3. Rxf7 Kxf7 4. Qxd7+ Kg6 5. Qxb7
2015-08-06 10:06:32.270 > PV: [MateIn5/9/0.040/32,723] 1. Qxd7+ Kxd7 2. Rd1+ Kc8 3. Rf8+ Qe8 4. Rxe8+ Bd8 5. Rdxd8#
2015-08-06 10:06:32.279 > SI: Iteration 3: end
2015-08-06 10:06:32.279 > [MateIn5/9/0.040/32,723] 1. Qxd7+ Kxd7 2. Rd1+ Kc8 3. Rf8+ Qe8 4. Rxe8+ Bd8 5. Rdxd8#-
Ferdy
- Posts: 4833
- Joined: Sun Aug 10, 2008 3:15 pm
- Location: Philippines
Re: The mate-in-5 problems from BWTC
I created a tool to run uci engines and output similar formats.
I sent "go mate n" command where n = 5, for engines that support this command. If not then I use "go movetime n" command instead.
Also added the pt field using psutil python library. Just added the user cpu time and the system cpu time to get the processor time.
When the engine sent bestmove and previous to that it sent info score mate n on one of its info output then I count it as mate found, though the bestmove is not verified. This can be shown in summary as "with mate found". With the result below, I limit the engine to search for only 60s max, by sending stop command (this is settable in the tool). Looking at the pv first move, it actually solved the position, it just could not return a mate score.
There are 3 positions that Deuterium is not able to send mate score because it could not increase its score. So the output position have no md field but it has ss numeric value.
Deuterium output.
Output summary.
Sample from SF6.
SF6 summary.
Tool to be uploaded later after some further improvement.
I sent "go mate n" command where n = 5, for engines that support this command. If not then I use "go movetime n" command instead.
Also added the pt field using psutil python library. Just added the user cpu time and the system cpu time to get the processor time.
When the engine sent bestmove and previous to that it sent info score mate n on one of its info output then I count it as mate found, though the bestmove is not verified. This can be shown in summary as "with mate found". With the result below, I limit the engine to search for only 60s max, by sending stop command (this is settable in the tool). Looking at the pv first move, it actually solved the position, it just could not return a mate score.
There are 3 positions that Deuterium is not able to send mate score because it could not increase its score. So the output position have no md field but it has ss numeric value.
Deuterium output.
Code: Select all
r3k1nr/pp1n2pp/1bp1N1q1/6B1/2B1p3/8/PPP2RPP/R2Q3K w kq - 0 1 md 5; nc 455154; pd 9; pt 0.468; pv 1.Qxd7+ Kxd7 2.Rd1+ Kc8 3.Rf8+ Qe8 4.Rxe8+ Bd8 5.Rdxd8#; ss MateIn5; wt 0.504;
2rr3k/1b2bppP/p2p1n2/R7/3P4/1qB2P2/1P4Q1/1K5R w - - 0 1 md 5; nc 45028; pd 8; pt 0.078; pv 1.Qxg7+; ss MateIn5; wt 0.083;
6k1/6n1/1p3Rp1/4qp2/3pN1PQ/P2P3P/1Pr1r3/5RK1 w - - 0 1 md 5; nc 149781; pd 10; pt 0.140; pv 1.Qh8+ Kxh8 2.Rf8+ Kh7 3.Ng5+ Kh6 4.Nf7+ Kh7 5.Rh8#; ss MateIn5; wt 0.159;
5nk1/1b3ppp/r7/p3q3/1pp3P1/4pP1R/PPQ4P/1B1R2K1 w - - 0 1 md 5; nc 115762; pd 11; pt 0.156; pv 1.Qxh7+; ss MateIn5; wt 0.159;
r1bqrk2/pp1n1n1p/3p1p2/P1pP1P1Q/2PpP1NP/6R1/2PB4/4RBK1 w - - 0 1 md 5; nc 19883; pd 4; pt 0.046; pv 1.Qxf7+ Kxf7 2.Nh6+ Kf8 3.Rg8+ Ke7 4.Rg7+ Kf8; ss MateIn5; wt 0.051;
3r2k1/p4rPp/1b1q3Q/n1p1pP2/1p6/3B1NR1/P4P1P/6RK w - - 0 1 md 5; nc 41326; pd 7; pt 0.078; pv 1.Qxh7+ Kxh7 2.f6+ Kg8 3.Bh7+ Kxh7 4.g8=Q+ Rxg8 5.Rh3#; ss MateIn5; wt 0.090;
r4r1k/5p1p/p2p1Pp1/2p3Q1/2P1PR2/7P/1Pq3P1/1R5K w - - 0 1 md 5; nc 579635; pd 14; pt 0.514; pv 1.Qh6 Qxb1+ 2.Kh2 Qh1+ 3.Kxh1 Rg8 4.Rh4 Rae8 5.Qxh7#; ss MateIn5; wt 0.522;
r1b2k1r/ppp2ppp/1bnp1R2/3Np3/2BqP1Q1/3P3N/PPP3PP/R1BK4 w - - 0 1 md 5; nc 23645; pd 4; pt 0.046; pv 1.Qxg7+ Ke8 2.Qxh8+ Kd7 3.Rxf7+ Ne7 4.Bb5+ c6; ss MateIn5; wt 0.053;
6rk/6rp/3qPp2/2p1bP1Q/pp6/4BR1R/P1P3P1/7K w - - 0 1 md 5; nc 316518; pd 14; pt 0.374; pv 1.Qxh7+; ss MateIn5; wt 0.389;
2r1kb1r/2q2p2/8/pppBp1B1/P6P/5pQ1/1PP3b1/2KR4 w k - 0 1 md 5; nc 6087409; pd 12; pt 05.491; pv 1.Qxe5+ Qe7 2.Bc6+ Rxc6 3.Qb8+ Rc8 4.Qxc8+ Qd8 5.Rxd8#; ss MateIn5; wt 05.506;
kr6/7Q/1pP5/pP1r3b/P4ppp/2R2N2/2R2KP1/3q4 w - - 0 1 md 5; nc 11072; pd 6; pt 0.031; pv 1.Qb7+ Rxb7 2.cxb7+ Kxb7 3.Rc7+ Ka8 4.Rc8+ Ka7 5.R2c7#; ss MateIn5; wt 0.062;
rn1qr2Q/pbppk1p1/1p2pb2/4N3/3P4/2N5/PPP3PP/R4RK1 w - - 0 1 md 5; nc 1617913; pd 11; pt 01.684; pv 1.Qxg7+ Bxg7 2.Rf7+ Kd6 3.Nb5+ Kd5 4.c4+ Ke4 5.Re1#; ss MateIn5; wt 01.686;
2k2b2/p1p1p3/P1Pp1N2/7p/2Q5/5pPq/4pP2/1R3nK1 w - - 0 1 md 5; nc 63957; pd 11; pt 0.078; pv 1.Qe6+ Qxe6 2.Nd7 Qxd7 3.Rb8+ Kxb8 4.cxd7 e1=Q 5.d8=Q#; ss MateIn5; wt 0.088;
r2qkb1r/pppb2pp/3p1n2/5pN1/2BQP3/2N5/PPP2PPP/R1B1K2R w KQkq - 0 1 md 5; nc 54818; pd 12; pt 0.078; pv 1.Bf7+; ss MateIn5; wt 0.090;
6k1/1RQ3p1/3p1p2/1P1Pr2p/7P/1q6/4p1PK/8 b - - 0 1 md 5; nc 3184; pd 3; pt 0.015; pv 1...Qg3+ 2.Kxg3 e1=Q+ 3.Kh3 Re3+ 4.Kh2; ss MateIn5; wt 0.021;
5rkb/ppp1q3/3p2BQ/6P1/3n4/2B4P/bPP1r3/2KR2NR b - - 0 1 md 5; nc 319444; pd 13; pt 0.343; pv 1...Qe3+; ss MateIn5; wt 0.358;
6k1/1Q1R1p1p/6p1/2b1pq2/P7/4P3/2r2PPP/5RK1 b - - 0 1 md 5; nc 73434; pd 10; pt 0.093; pv 1...Qxf2+; ss MateIn5; wt 0.098;
rnbkr3/ppp2Bpp/5b2/7q/2Q2p2/5N2/PPPP2PP/R1B2K1R b - - 0 1 md 5; nc 9737; pd 4; pt 0.031; pv 1...Qxf3+ 2.gxf3 Bh3+ 3.Kf2 Bh4+ 4.Kg1 Re1+ 5.Qf1; ss MateIn5; wt 0.038;
N1bk3r/p5pp/3b1p2/3B4/3nP1nq/3P3N/PPP3KP/R1B1Q2R b - - 0 1 md 5; nc 421977; pd 9; pt 0.468; pv 1...Qxh3+ 2.Kxh3 Ne3+ 3.Be6 Bxe6+ 4.Kh4 Nf3+ 5.Kh5 Bg4#; ss MateIn5; wt 0.483;
6k1/1bp2ppp/p2p1b2/7R/Q1P5/P3q3/1r3NPP/5RK1 b - - 0 1 md 5; nc 23163; pd 10; pt 0.046; pv 1...Qxf2+; ss MateIn5; wt 0.076;
1r1r2k1/p4ppp/1qp5/4Pb2/3b1P2/1PP2N2/P2BQ1PP/2KR3R b - - 0 1 md 5; nc 1281963; pd 12; pt 01.248; pv 1...Qxb3 2.axb3 Rxb3 3.Qd3 Bxd3 4.Be3 Bxe3+ 5.Nd2 Rb1#; ss MateIn5; wt 01.257;
1k6/p2q2pp/1p3p2/2pn4/3P2PP/Q1P2PK1/P3r3/6RR b - - 0 1 md 5; nc 313990; pd 8; pt 0.280; pv 1...Qc7+ 2.Kh3 Nf4+ 3.Kg3 Nh5+ 4.Kh3 Qg3+ 5.Rxg3 Nf4#; ss MateIn5; wt 0.293;
r3rbk1/5b2/2R3p1/1p1p2Np/3B2n1/1P1P2P1/4PPB1/6K1 w - - 0 1 md 5; nc 10838; pd 5; pt 0.031; pv 1.Rxg6+ Bg7 2.Rxg7+ Kf8 3.Rxf7+ Kg8 4.Rg7+ Kf8 5.Nh7#; ss MateIn5; wt 0.048;
7k/pppR3p/5p1N/8/5n1N/7P/P4bPK/4r3 w - - 0 1 md 5; nc 4624; pd 4; pt 0.015; pv 1.Rd8+ Re8 2.Rxe8+ Kg7 3.N4f5+ Kg6 4.Rg8+ Kh5; ss MateIn5; wt 0.034;
3r2k1/pB3ppp/1pr5/4n3/4n3/1RP1P3/P4PPP/2B2RK1 b - - 0 1 md 5; nc 12752; pd 8; pt 0.031; pv 1...Nf3+; ss MateIn5; wt 0.037;
5r1N/ppp1k1pp/8/3Pp3/1PBnn2P/2N1K2b/PP1P3P/R1B4R b - - 0 1 pd 20; nc 60886016; pt 01:00.731; pv 1...Rf3+; ss +1.300; wt 01:00.742;
4r2k/1p4p1/1pb5/8/3P1n2/2P2rN1/PP5P/R1B2RK1 b - - 0 1 md 5; nc 94092; pd 9; pt 0.109; pv 1...Rf2 2.Bxf4 Rg2+ 3.Kh1 Rxg3+ 4.d5 Bxd5+ 5.Rf3 Bxf3#; ss MateIn5; wt 0.119;
7k/1R3p1p/P2Pp3/4n3/8/8/r5BP/2r2N1K b - - 0 1 md 5; nc 10257013; pd 16; pt 07.815; pv 1...Nf3 2.Rb8+ Kg7 3.Rg8+ Kxg8 4.a7 Rxf1+ 5.Bxf1 Rxh2#; ss MateIn5; wt 07.834;
2kr4/ppp2p1p/2np1p2/2b1p2b/4PP1P/1B1P4/PPP3KP/RN3R2 b - - 0 1 md 5; nc 9158; pd 4; pt 0.031; pv 1...Rg8+ 2.Kh3 Bg4+ 3.Kg2 Be2+ 4.Kh1 Bf3+ 5.Rxf3; ss MateIn5; wt 0.047;
5k2/pbp2r2/1p5p/4R1pP/1PP5/8/PKBQ1q2/8 w - - 0 1 md 5; nc 670; pd 3; pt 0.015; pv 1.Qd8+; ss MateIn5; wt 0.034;
rn1q1rk1/pppbb1p1/4p3/3pP1P1/3P4/2N5/PPP2PP1/R2QK2R w KQ - 0 1 md 5; nc 513089; pd 12; pt 0.577; pv 1.Rh8+ Kxh8 2.Qh5+ Kg8 3.g6 Rf5 4.Qh7+ Kf8 5.Qh8#; ss MateIn5; wt 0.597;
5r1k/1p2qB1n/p1pp4/4p3/4P3/2PP4/PP5R/5Q1K w - - 0 1 md 5; nc 20973; pd 8; pt 0.046; pv 1.Rxh7+; ss MateIn5; wt 0.051;
r1b1Q1rk/2p4p/3p4/p1pPp1q1/2P1PpP1/2N5/PP3P2/2K3RR w - - 0 1 md 5; nc 642357; pd 11; pt 0.592; pv 1.Rxh7+ Kxh7 2.Qf7+ Kh6 3.Rh1+ Qh4 4.Qf6+ Kh7 5.Rxh4#; ss MateIn5; wt 0.606;
6k1/pp1bR1r1/6p1/3p3p/3P2P1/2Pq4/PP3QK1/4R3 w - - 0 1 md 5; nc 8379; pd 4; pt 0.031; pv 1.Rxg7+ Kxg7 2.Re7+ Kh6 3.Qf4+ g5 4.Qf8+ Kg6; ss MateIn5; wt 0.044;
3r1rn1/pp1n2kp/1qpN1pp1/6Q1/4P3/1B1R4/PP3PPP/2R3K1 w - - 0 1 md 5; nc 318005; pd 9; pt 0.327; pv 1.Nf5+ Kh8 2.Qxg6 Qxf2+ 3.Kxf2 hxg6 4.Rh3+ Nh6 5.Rxh6#; ss MateIn5; wt 0.348;
1q2b1r1/p1r4k/B1p1P1pp/1p2Q3/5PP1/7R/PP5K/3R4 w - - 0 1 md 5; nc 41047084; pd 15; pt 36.223; pv 1.Rxh6+ Kxh6 2.Kg3 g5 3.Rh1+ Bh5 4.Rxh5+ Kg6 5.Qxg5#; ss MateIn5; wt 36.230;
3r2k1/ppp2pp1/4p2P/r7/2nPQP2/1qP2N2/1P2R2P/2K3R1 w - - 0 1 md 5; nc 308; pd 3; pt 0.015; pv 1.Rxg7+; ss MateIn5; wt 0.047;
6k1/6p1/p3br2/1p1pQ3/5r2/1P1B2R1/1P3qPP/2R4K w - - 0 1 md 5; nc 385909; pd 12; pt 0.390; pv 1.Rc8+ Bxc8 2.Qe8+ Rf8 3.Rxg7+ Kxg7 4.Qg6+ Kh8 5.Qh7#; ss MateIn5; wt 0.409;
r4rk1/p1pb1qp1/3n1p1R/2pPpN2/2P5/P1PB4/4Q1PP/5RK1 w - - 0 1 md 5; nc 974085; pd 12; pt 0.982; pv 1.Ne7+ Qxe7 2.Rh8+ Kxh8 3.Qh5+ Kg8 4.Qh7+ Kf7 5.Bg6#; ss MateIn5; wt 0.997;
rb4rk/p4p1p/1q3p1B/2R2N2/3pb2Q/P5P1/1P2BP1P/6K1 w - - 0 1 md 5; nc 137266; pd 8; pt 0.156; pv 1.Bg7+ Rxg7 2.Rc8+ Rg8 3.Qg4 Qd8 4.Rxd8 Rxd8 5.Qg7#; ss MateIn5; wt 0.169;
rnbq1rk1/pppp1ppp/8/8/2B5/2B5/P4PPP/R2Q1RK1 w - - 0 1 md 5; nc 195726; pd 9; pt 0.202; pv 1.Qg4 Qf6 2.Bxf6 g6 3.Qf4 Nc6 4.Qh6 d5 5.Qg7#; ss MateIn5; wt 0.214;
2r2rk1/1p2qpp1/p4R2/4p1Q1/2n1P3/3B1R2/2P3PP/7K w - - 0 1 md 5; nc 26607; pd 6; pt 0.046; pv 1.Rg3 g6 2.Rxg6+ fxg6 3.Qxg6+ Kh8 4.Rh3+ Qh7 5.Rxh7#; ss MateIn5; wt 0.054;
5r1k/1p4R1/p6p/5ppN/3P2n1/6N1/PP2QPq1/4K3 w - - 0 1 md 5; nc 8782; pd 4; pt 0.031; pv 1.Rh7+ Kg8 2.Qe6+ Kxh7 3.Qe7+ Rf7 4.Qxf7+ Kh8; ss MateIn5; wt 0.041;
rn2nrk1/p1q3pp/1p2p2B/3b3Q/3P1N2/P1PB4/5P1P/R3K1R1 w Q - 0 1 md 6; nc 10106; pd 3; pt 0.031; pv 1.Bxh7+ Kh8 2.Bxg7+ Qxg7 3.Bd3+ Kg8 4.Rxg7+ Kxg7 5.Qg6+ Kh8; ss MateIn6; wt 0.040;
rnb4r/ppp4k/7p/7q/2QB2pP/8/PPP3P1/R4RK1 w - - 0 1 md 5; nc 31901; pd 4; pt 0.046; pv 1.Rf7+ Kg6 2.Rg7+ Kf5 3.Rf1+ Ke4 4.Bf6+ Ke3; ss MateIn5; wt 0.058;
5rrk/1q2ppb1/p6p/1pnPP2Q/2p2P2/2N4P/PP2B1R1/6RK w - - 0 1 md 5; nc 6410664; pd 13; pt 05.928; pv 1.Rxg7 Qb6 2.e6 Qxe6 3.dxe6 Rxg7 4.Qxh6+ Kg8 5.Rxg7#; ss MateIn5; wt 05.932;
r6k/p1Q5/2p1b1rq/4p3/B3P3/4P3/PPP3P1/4RRK1 b - - 0 1 md 5; nc 9220; pd 4; pt 0.031; pv 1...Rxg2+ 2.Kxg2 Qh3+ 3.Kf2 Qh2+ 4.Kf3 Rf8+ 5.Qf7; ss MateIn5; wt 0.041;
5rk1/1p1b2pp/p3P3/6q1/8/1QP1R1PP/PP1r4/4R1K1 b - - 0 1 md 5; nc 119513; pd 8; pt 0.124; pv 1...Rf1+ 2.Rxf1 Qxe3+ 3.Kh1 Bc6+ 4.Qd5 Bxd5+ 5.Rf3 Bxf3#; ss MateIn5; wt 0.139;
r4nk1/pp3p1p/2p4r/3p2p1/3P1N1q/3BPbPP/PPQ2P1K/R4R2 b - - 0 1 pd 27; nc 65603584; pt 01:00.824; pv 1...Qxh3+; ss -0.100; wt 01:00.826;
r3r1k1/1p3ppp/2p2b2/p7/8/Q1BP2Pq/PPP4P/4RR1K b - - 0 1 md 5; nc 11143; pd 5; pt 0.031; pv 1...Re2 2.Rf2 Rxf2 3.Re8+ Rxe8 4.Qf8+ Rxf8 5.Bxa5; ss MateIn5; wt 0.049;
5k2/p1b2r2/1pP1b3/4P3/1RnBQ3/2P2Pp1/P3B2r/3R1KNq b - - 0 1 md 5; nc 235035; pd 8; pt 0.265; pv 1...Rf2+ 2.Bxf2 Bh3+ 3.Ke1 gxf2+ 4.Kxf2 Qg2+ 5.Ke1 Qg3#; ss MateIn5; wt 0.274;
2b2rk1/p1p1q1p1/np1p2Qp/3P3B/1PP1p2r/6R1/P2BPP1P/6RK b - - 0 1 md 5; nc 10782; pd 5; pt 0.031; pv 1...Rxh2+ 2.Kxh2 Qh4+ 3.Kg2 Bh3+ 4.Rxh3 Rxf2+ 5.Kh1 Qxh3#; ss MateIn5; wt 0.056;
6k1/5ppp/4p3/p1b1n1q1/PpP1P3/5b1P/4BB1K/R3RQ2 b - - 0 1 md 5; nc 123903; pd 7; pt 0.140; pv 1...Qf4+ 2.Bg3 Bg1+ 3.Qxg1 Ng4+ 4.hxg4 Qh6+ 5.Bh4 Qxh4#; ss MateIn5; wt 0.144;
r2r2k1/1p3ppp/3b4/pP5q/3Np3/P3PbPP/2R1B2K/2R2Q2 b - - 0 1 md 5; nc 12749; pd 4; pt 0.031; pv 1...Bxg3+ 2.Kxg3 Qg5+ 3.Kf2 Qh4+ 4.Kg1 Qg3+ 5.Qg2; ss MateIn5; wt 0.042;
5rk1/pR4pp/2p5/4p3/2P1P1q1/6P1/PP1Qn1BP/7K b - - 0 1 md 5; nc 8377; pd 4; pt 0.031; pv 1...Rf1+ 2.Bxf1 Qxe4+ 3.Bg2 Qb1+ 4.Qe1 Qxe1+ 5.Bf1; ss MateIn5; wt 0.035;
r6r/ppp2kp1/1b6/8/3np3/PPP2qN1/5P1P/R1NQ1RK1 b - - 0 1 md 5; nc 478761; pd 10; pt 0.468; pv 1...Rxh2 2.Kxh2 Rh8+ 3.Kg1 Qxg3+ 4.fxg3+ Nf3+ 5.Kg2 Rh2#; ss MateIn5; wt 0.477;
r6r/pbppk3/1p2pqQ1/6B1/2Pn4/8/PP3PPP/R4RK1 b - - 0 1 md 5; nc 1402; pd 3; pt 0.015; pv 1...Ne2+ 2.Kh1 Rxh2+ 3.Kxh2 Rh8+ 4.Qh6 Rxh6+ 5.Bxh6 Qxh6#; ss MateIn5; wt 0.062;
7Q/ppp2q2/3p2k1/P2Ppr1N/1PP5/7R/5rP1/6K1 b - - 0 1 md 5; nc 356429; pd 11; pt 0.343; pv 1...Rxg2+ 2.Kxg2 Rf2+ 3.Kg3 Qf3+ 4.Kh4 Qe4+ 5.Kg3 Rg2#; ss MateIn5; wt 0.359;
r2qk2r/ppp2pp1/2p5/4N3/3bQ3/2P3p1/PP3PP1/RNB2RK1 b kq - 0 1 md 5; nc 21789; pd 8; pt 0.046; pv 1...Bxf2+; ss MateIn5; wt 0.059;
r4kr1/ppp2n1p/3p4/8/3bPP1q/3Q3P/PP5K/RNB2R2 b - - 0 1 md 5; nc 22329; pd 6; pt 0.046; pv 1...Bg1+ 2.Kh1 Rg3 3.Qxd6+ cxd6 4.Rf2 Qxh3+ 5.Rh2 Qxh2#; ss MateIn5; wt 0.059;
k7/p1p5/2p4p/6p1/3P1pR1/2PQ1P1q/PP2rP1P/4R2K b - - 0 1 md 5; nc 6131; pd 5; pt 0.015; pv 1...Rxf2 2.Re8+ Kb7 3.Rb8+ Kxb8 4.Qb5+ cxb5 5.Rg1 Rxh2#; ss MateIn5; wt 0.034;
rn4kr/ppq1pp1p/5bpB/5R2/2B5/8/PPP3PP/R2Q3K w - - 0 1 md 5; nc 887217; pd 12; pt 0.842; pv 1.Qd5 e6 2.Qxe6 fxe6 3.Rxf6 Qf7 4.Bxe6 Nd7 5.Bxf7#; ss MateIn5; wt 0.856;
2r3r1/3q3p/p6b/Pkp1B3/1p1p1P2/1P1P1Q2/2R3PP/2R3K1 w - - 0 1 md 5; nc 18318849; pd 15; pt 15.288; pv 1.Bc7 Rxg2+ 2.Qxg2 Rxc7 3.Qb7+ Kxa5 4.Ra1+ Qa4 5.Rxa4#; ss MateIn5; wt 15.301;
rnb1kr2/pp2bpQp/2p1p3/8/2q2B2/2PR3N/P4PPP/3R2K1 w q - 0 1 md 5; nc 126883; pd 8; pt 0.156; pv 1.Rd8+ Bxd8 2.Rxd8+ Kxd8 3.Qxf8+ Kd7 4.Qxf7+ Kd8 5.Bg5#; ss MateIn5; wt 0.166;
r2k4/ppp1n1r1/1b2RN1q/8/2pp2P1/5Q2/PPP2P1P/R5K1 w - - 0 1 md 5; nc 753661; pd 10; pt 0.811; pv 1.Qd5+ Kc8 2.Qd7+ Kb8 3.Qd8+ Nc8 4.Qxc8+ Kxc8 5.Re8#; ss MateIn5; wt 0.819;
2r2b1r/p1Nk2pp/3p1p2/N2Qn3/4P3/q6P/P4PP1/1R3K1R w - - 0 1 md 5; nc 83191; pd 10; pt 0.093; pv 1.Qe6+; ss MateIn5; wt 0.108;
r4rk1/p1p4p/1p1pp3/2P2p1q/2PPn1p1/1Q1BPbP1/PBR2P1P/4R1K1 b - - 0 1 pd 21; nc 54060032; pt 01:00.809; pv 1...Rf6; ss +5.160; wt 01:00.814;
6k1/1p5p/2P1p3/pP1pN2q/P2Qpr2/7b/5R1P/6K1 b - - 0 1 md 5; nc 12162; pd 5; pt 0.031; pv 1...Qe2 2.Nf3 Rg4+ 3.Kh1 Bg2+ 4.Kg1 Bxf3+ 5.Rg2; ss MateIn5; wt 0.048;
8/p4pkp/P1p3p1/2p5/2n1P1q1/2PKp1P1/2P5/1Q2B3 b - - 0 1 md 5; nc 104894; pd 12; pt 0.109; pv 1...Ne5+; ss MateIn5; wt 0.116;
rnb1k2r/pppp1ppp/8/3Pp3/2P1n2q/5KPP/PP2P3/RNBQ1BNR b kq - 0 1 md 5; nc 9311; pd 6; pt 0.031; pv 1...Qxg3+; ss MateIn5; wt 0.034;
rr4k1/6pp/2Q5/3KN3/8/q7/8/8 w - - 0 1 md 5; nc 1401; pd 4; pt 0.015; pv 1.Qe6+; ss MateIn5; wt 0.050;
4qr1k/pb3p1r/1p1p4/2pPpNQB/2P1n3/P1P5/5P2/3RK2R w K - 0 1 md 5; nc 244629; pd 10; pt 0.265; pv 1.Qg7+ Rxg7 2.Bg6+ Kg8 3.Nh6+ Kh8 4.Nxf7+ Kg8 5.Rh8#; ss MateIn5; wt 0.276;
r1b2kr1/1pRnn1p1/p2Np1q1/3pPpNp/3p1P1P/Q7/PP2BKP1/2R5 w - - 0 1 md 5; nc 3604514; pd 10; pt 03.619; pv 1.Rxc8+ Rxc8 2.Rxc8+ Nxc8 3.Nxc8+ Nc5 4.Qxc5+ Ke8 5.Qe7#; ss MateIn5; wt 03.625;
r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - 0 1 md 5; nc 144138; pd 12; pt 0.156; pv 1.Qd7+; ss MateIn5; wt 0.162;
5r1k/ppp2p1r/3p2pP/8/qn2P1NQ/3P4/1PP3P1/2K2R1R w - - 0 1 md 5; nc 176954; pd 10; pt 0.202; pv 1.Qf6+ Kg8 2.Qg7+ Rxg7 3.Nf6+ Kh8 4.hxg7+ Kxg7 5.Rh7#; ss MateIn5; wt 0.220;
r1b2rk1/1pq2p1p/p4Q2/1pP5/5p2/3BR3/P4PPP/5K1R w - - 0 1 md 5; nc 589219; pd 11; pt 0.561; pv 1.Rg3+ fxg3 2.Bxh7+ Kxh7 3.hxg3+ Bh3 4.Rxh3+ Kg8 5.Rh8#; ss MateIn5; wt 0.567;
2rqnrk1/pp3ppp/1b1p4/3p2Q1/2n1P3/3B1P2/PB3P1P/R5RK w - - 0 1 md 5; nc 102030; pd 8; pt 0.124; pv 1.Qxg7+ Nxg7 2.Rxg7+ Kh8 3.Rg8+ Kxg8 4.Rg1+ Qg5 5.Rxg5#; ss MateIn5; wt 0.135;
6r1/1qnR2bk/6p1/7p/8/P3QN2/K5P1/8 w - - 0 1 md 5; nc 243364; pd 12; pt 0.218; pv 1.Ng5+ Kh8 2.Nf7+ Kh7 3.Qh6+ Bxh6 4.Ng5+ Kh8 5.Rh7#; ss MateIn5; wt 0.234;
r3kb1r/ppp3p1/4bp1p/5q2/3QN2B/1PP5/P4PPP/3RR1K1 w kq - 0 1 md 5; nc 72132; pd 11; pt 0.093; pv 1.Qd7+; ss MateIn5; wt 0.098;
3q1rk1/p4pp1/2pb3p/3p4/6Pr/1PNQ4/P1PB1PP1/4RRK1 b - - 0 1 md 5; nc 4420; pd 10; pt 0.015; pv 1...Bh2+; ss MateIn5; wt 0.065;
r3qr2/ppp1ppkP/3p1nb1/6Q1/3P3N/8/PPP1PPP1/R3KB1R w KQ - 0 1 md 5; nc 31712; pd 6; pt 0.062; pv 1.h8=Q+ Rxh8 2.Nf5+ Kg8 3.Rxh8+ Kxh8 4.Qh6+ Kg8 5.Qg7#; ss MateIn5; wt 0.071;
r3r1k1/p4p1p/5Bp1/2q5/8/8/PP1Q4/KR1R4 w - - 0 1 md 5; nc 1544710; pd 14; pt 01.372; pv 1.Qh6 Qf8 2.Qxh7+ Kxh7 3.Rh1+ Qh6 4.Rxh6+ Kxh6 5.Rh1#; ss MateIn5; wt 01.381;
2kr2r1/pp1n1p2/2p1p1bp/8/2PP1N2/8/PP3P1P/R2BQRK1 b - - 0 1 md 5; nc 85732; pd 8; pt 0.093; pv 1...Be4+ 2.Ng2 Rxg2+ 3.Kh1 Rg1+ 4.Kxg1 Rg8+ 5.Bg4 Rxg4#; ss MateIn5; wt 0.111;
Code: Select all
cpu name : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
physical cores : 4
logical cores : 8
total memory : 12 GB
available memory : 9 GB
engine : Deuterium v2015.1.35.236
hash : 128 MB
threads : 1
cpu affinity : [0, 1, 2, 3, 4, 5, 6, 7]
test set filename : DM5_BWTC.fen
test set total positions : 83
maximum allowable time : 60.0s/pos
mating distance (md) : 5
total wall time (wt) : 000d:00h:04m:34s.751ms
total processor time (pt) : 000d:00h:04m:33s.625ms
total pos : 83
average pt : 000d:00h:00m:03s.296ms
total pt with mate found : 000d:00h:01m:31s.260ms
total pos with mate found : 80 (96.4%)
average pt with mate found : 000d:00h:00m:01s.140ms
total ply draft (pd) : 744
average pd : 9Code: Select all
r3k1nr/pp1n2pp/1bp1N1q1/6B1/2B1p3/8/PPP2RPP/R2Q3K w kq - 0 1 md 5; nc 23042; pd 11; pt 0.046; pv 1.Qxd7+ Kxd7 2.Rd1+ Kc8 3.Rf8+ Qe8 4.Rxe8+ Bd8 5.Rdxd8#; ss MateIn5; wt 0.082;
2rr3k/1b2bppP/p2p1n2/R7/3P4/1qB2P2/1P4Q1/1K5R w - - 0 1 md 5; nc 467; pd 4; pt 0.015; pv 1.Qxg7+ Kxg7 2.h8=Q+ Rxh8; ss MateIn5; wt 0.026;
6k1/6n1/1p3Rp1/4qp2/3pN1PQ/P2P3P/1Pr1r3/5RK1 w - - 0 1 md 5; nc 27915; pd 9; pt 0.046; pv 1.Qh8+ Kxh8 2.Rf8+ Kh7 3.Ng5+ Kh6 4.Nf7+ Kh7 5.Rh8#; ss MateIn5; wt 0.058;
5nk1/1b3ppp/r7/p3q3/1pp3P1/4pP1R/PPQ4P/1B1R2K1 w - - 0 1 md 5; nc 4149; pd 7; pt 0.015; pv 1.Qxh7+ Nxh7 2.Rd8+ Qe8 3.Rxe8+ Nf8 4.Bh7+ Kh8 5.Rxf8#; ss MateIn5; wt 0.038;
r1bqrk2/pp1n1n1p/3p1p2/P1pP1P1Q/2PpP1NP/6R1/2PB4/4RBK1 w - - 0 1 md 5; nc 1728; pd 7; pt 0.015; pv 1.Qxf7+ Kxf7 2.Nh6+ Kf8 3.Rg8+ Ke7 4.Rg7+ Kf8 5.Rf7#; ss MateIn5; wt 0.032;
3r2k1/p4rPp/1b1q3Q/n1p1pP2/1p6/3B1NR1/P4P1P/6RK w - - 0 1 md 5; nc 4252; pd 9; pt 0.015; pv 1.Qxh7+ Kxh7 2.f6+ Kg8 3.Bh7+ Kxh7 4.g8=Q+ Rxg8 5.Rh3#; ss MateIn5; wt 0.072;
r4r1k/5p1p/p2p1Pp1/2p3Q1/2P1PR2/7P/1Pq3P1/1R5K w - - 0 1 md 5; nc 50949; pd 11; pt 0.046; pv 1.Qh6 Qxb1+ 2.Kh2 Qg1+ 3.Kxg1 Rg8 4.Qxh7+ Kxh7 5.Rh4#; ss MateIn5; wt 0.056;
r1b2k1r/ppp2ppp/1bnp1R2/3Np3/2BqP1Q1/3P3N/PPP3PP/R1BK4 w - - 0 1 md 5; nc 62869; pd 12; pt 0.062; pv 1.Qxg7+ Ke8 2.Qxh8+ Kd7 3.Rxf7+ Ne7 4.Bb5+ Ke6 5.Rxe7#; ss MateIn5; wt 0.078;
6rk/6rp/3qPp2/2p1bP1Q/pp6/4BR1R/P1P3P1/7K w - - 0 1 md 5; nc 7273; pd 9; pt 0.015; pv 1.Qxh7+ Rxh7 2.Rxh7+ Kxh7 3.Rh3+ Kg7 4.Bh6+ Kh7 5.Bf8#; ss MateIn5; wt 0.040;
2r1kb1r/2q2p2/8/pppBp1B1/P6P/5pQ1/1PP3b1/2KR4 w k - 0 1 md 5; nc 5274; pd 6; pt 0.031; pv 1.Qxe5+ Qe7 2.Bc6+ Rxc6 3.Qb8+ Rc8 4.Qxc8+ Qd8 5.Rxd8#; ss MateIn5; wt 0.046;
kr6/7Q/1pP5/pP1r3b/P4ppp/2R2N2/2R2KP1/3q4 w - - 0 1 md 5; nc 1923; pd 5; pt 0.015; pv 1.Qb7+ Rxb7 2.cxb7+ Kxb7 3.Rc7+ Kb8 4.Rc8+ Ka7; ss MateIn5; wt 0.057;
rn1qr2Q/pbppk1p1/1p2pb2/4N3/3P4/2N5/PPP3PP/R4RK1 w - - 0 1 md 5; nc 20086; pd 9; pt 0.046; pv 1.Qxg7+ Bxg7 2.Rf7+ Kd6 3.Nb5+ Kd5 4.c4+ Ke4 5.Re1#; ss MateIn5; wt 0.061;
2k2b2/p1p1p3/P1Pp1N2/7p/2Q5/5pPq/4pP2/1R3nK1 w - - 0 1 md 5; nc 7084; pd 9; pt 0.015; pv 1.Qe6+ Qxe6 2.Nd7 Qxd7 3.Rb8+ Kxb8 4.cxd7 e1=Q 5.d8=Q#; ss MateIn5; wt 0.059;
[...]
Code: Select all
cpu name : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
physical cores : 4
logical cores : 8
total memory : 12 GB
available memory : 9 GB
engine : Stockfish 6 64 POPCNT
hash : 128 MB
threads : 1
cpu affinity : [0, 1, 2, 3, 4, 5, 6, 7]
test set filename : DM5_BWTC.fen
test set total positions : 83
maximum allowable time : 60.0s/pos
mating distance (md) : 5
total wall time (wt) : 000d:00h:00m:10s.988ms
total processor time (pt) : 000d:00h:00m:09s.079ms
total pos : 83
average pt : 000d:00h:00m:00s.109ms
total pt with mate found : 000d:00h:00m:09s.079ms
total pos with mate found : 83 (100.0%)
average pt with mate found : 000d:00h:00m:00s.109ms
total ply draft (pd) : 735
average pd : 9-
sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
EPD variation display
The tool output looks interesting. I would note however that move numbering is not used with EPD variation display. So, for an EPD pv field use
instead of
I need to finish the update of the EPD specification.
Code: Select all
pv e4 e5 Nf3;Code: Select all
pv 1. e4 e5 2. Nf3;-
Ferdy
- Posts: 4833
- Joined: Sun Aug 10, 2008 3:15 pm
- Location: Philippines
Re: EPD variation display
Right I will revise it.sje wrote:The tool output looks interesting. I would note however that move numbering is not used with EPD variation display. So, for an EPD pv field useinstead ofCode: Select all
pv e4 e5 Nf3;I need to finish the update of the EPD specification.Code: Select all
pv 1. e4 e5 2. Nf3;
-
Dann Corbit
- Posts: 12482
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: EPD variation display
Two suggestions for the update of the EPD specification:sje wrote:The tool output looks interesting. I would note however that move numbering is not used with EPD variation display. So, for an EPD pv field useinstead ofCode: Select all
pv e4 e5 Nf3;I need to finish the update of the EPD specification.Code: Select all
pv 1. e4 e5 2. Nf3;
1. No useless e.p. tags. (I would suggest that even in the case where there is a vulnerable pawn but the attacker is pinned, the e.p. flag does not get set). In any case, if there is no attacker, do not set any e.p. flag.
2. Change the meaning of pm. To echo the first node of the pv does not seem to have any value for me. I use pm as a list of predicted moves (I also generally include an indication of their probability with a comment of some sort).
-
sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
And also for the ev (execute variation) field
The revised EPD specification also has the ev field to show an execute variation move sequence, and this doesn't use move numbering either. The EPD ev field makes for better inter-conversion with UCI position directives. Its semantics are simple. The position indicated by an EPD record is given by the record's FEN (first six tokens, always present) and modified by an ev field (if present).-
In all cases, EPD implied move numbering begins using the FEN half move counter and full move number.
----
Some tangentially related code from Symbolic's Position class:
And some samples from the EPD class:
Various encoding routines:
In all cases, EPD implied move numbering begins using the FEN half move counter and full move number.
----
Some tangentially related code from Symbolic's Position class:
Code: Select all
EPDPtr Position::NewEPDFromAnalysis(const Analysis& analysis) const
{
EPDPtr epdptr = new EPD(*this);
if (IsSvMating(analysis.GetPsv()))
epdptr->AppendNewCmd(FullMoveMatingDistance(analysis.GetPsv()));
epdptr->AppendNewCnc(analysis.GetNodeCount());
epdptr->AppendNewCpd(analysis.GetDraft());
epdptr->AppendNewCpt(analysis.RefTPTotal().GetProcUsec());
epdptr->AppendNewCpv(analysis.RefPV());
epdptr->AppendNewCss(analysis.GetPsv());
epdptr->AppendNewCwt(analysis.RefTPTotal().GetWallUsec());
return epdptr;
}
EPDPtr Position::NewEPDFromPerft(const ui draft, const NodeCount nodecount) const
{
EPDPtr epdptr = new EPD(*this);
epdptr->AppendNewCnc(nodecount);
epdptr->AppendNewCpd(draft);
return epdptr;
}Code: Select all
void EPD::AppendNewCpt(const Usec usec)
{
EPDFieldNodePtr fnptr = new EPDFieldNode(EoCpt);
EPDValueNodePtr vnptr = new EPDValueNode();
vnptr->SEVusec(usec);
fnptr->AppendValue(vnptr);
AppendField(fnptr);
}
void EPD::AppendNewCpv(const MoveList& movelist)
{
EPDFieldNodePtr fnptr = new EPDFieldNode(EoCpv);
MoveNodePtr mnptr = movelist.GetHead();
while (mnptr)
{
EPDValueNodePtr vnptr = new EPDValueNode();
vnptr->SEVmove(*mnptr);
fnptr->AppendValue(vnptr);
mnptr = mnptr->GetNext();
};
AppendField(fnptr);
}Code: Select all
std::string EPDValue::Encode(void) const
{
std::ostringstream oss;
switch (eob)
{
case EoBmove:
oss << vVmove.Encode();
break;
case EoBstring:
oss << "\"" << vVstring << "\"";
break;
case EoBsv:
oss << Score::EncodeSv(vVsv);
break;
case EoBui64:
oss << EncodeUi64(vVui64);
break;
case EoBusec:
oss << UsecMark(vVusec).EncodeMarkLZSUsec();
break;
default:
SwitchFault("EPDValue::Encode");
break;
};
return oss.str();
}
std::string EPDField::Encode(void) const
{
std::ostringstream oss;
EPDValueNodePtr vnptr = valuelist.GetHead();
oss << EPD::OpcodeNames[eoc];
while (vnptr)
{
oss << " " << vnptr->Encode();
vnptr = vnptr->GetNext();
};
oss << ";";
return oss.str();
}
std::string EPD::Encode(void) const
{
std::ostringstream oss;
EPDFieldNodePtr fnptr = fieldlist.GetHead();
oss << position.Encode();
while (fnptr)
{
oss << " " << fnptr->Encode();
fnptr = fnptr->GetNext();
};
return oss.str();
}-
sje
- Posts: 4675
- Joined: Mon Mar 13, 2006 7:43 pm
Re: EPD variation display
The en passant target square will always be "-" except when at least one en passant capture is available.Dann Corbit wrote:Two suggestions for the update of the EPD specification:sje wrote:I need to finish the update of the EPD specification.
1. No useless e.p. tags. (I would suggest that even in the case where there is a vulnerable pawn but the attacker is pinned, the e.p. flag does not get set). In any case, if there is no attacker, do not set any e.p. flag.
2. Change the meaning of pm. To echo the first node of the pv does not seem to have any value for me. I use pm as a list of predicted moves (I also generally include an indication of their probability with a comment of some sort).
The old pm opcode has been deprecated. Instead, from the pv field (if present), use its first move (if present). The reason for this is to avoid having the same data appear twice and so eliminate the chance of a mismatch. Also, the old pm opcode would only specify a single move and not a set of moves. To specify a set of best moves, use the bm opcode which takes zero or more move operands.