Mate in 19?

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David Dahlem
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Mate in 19?

Post by David Dahlem »

[d]2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - 0 1

Chest 5.1: Mate in 19

19/19 00:00 29.806 647.956 +M19 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Be3g5 Kf1f2 Bg5h4+ Kf2f1 Bh4e7 Kf1f2 Be7c5+ Kf2f1 Bc5xa3 Kf1f2 Ba3c5+ Kf2f1 e5e6 a4a3 Bc5d6 Kf1f2 Bd6g3+ Kf2f1 Bg3b8 Kf1f2 Bb8a7+ Kf2f1 Nc8b6 Kf1f2 Nb6d5+ Kf2f1 Ba7b8 Kf1f2 Bb8g3+ Kf2f1 Nd5e3+

Spark 0.4: Mate in 17

28/50 00:55 76.515.319 1.394.356 +M17 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Kd2d3 Kf1e1 Be3xg1 Ke1f1 Bg1e3 g2g1Q Be3xg1 Bh1g2 e5e6 Bg2h3 e6e7 Kf1xg1 e7e8Q Kg1h1 f5f6 Bh3g2 f6f7 Kh1xh2 Qe8e5+ Kh2g1 f7f8Q Bg2h3 Qe5g3+ Kg1h1 Qg3xh3+ Kh1g1 Qf8f1+

Houdini 1.03a: Mate in 16

31/63 00:38 69.283.563 1.852.000 +M16 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Kd2d3 Kf1e1 Be3xg1 Ke1f1 Bg1e3 g2g1Q Be3xg1 Kf1xg1 e5e6 Bh1g2 e6e7 Kg1h1 e7e8Q Kh1g1 Qe8g8 Kg1xh2 Kd3e3 Kh2h3 Ke3f2 Kh3h4 Qg8g3+ Kh4h5 Kf2xg2 Kh5h6

Who is correct? :?:
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: Mate in 19?

Post by kgburcham »

doesnt matter David, game over


Critter 0.80 64-bit (2048 MB)

21/56 0:02 +96.95 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.f7 (17.299.971) 6128
22/56 0:03 +M23 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.f7 (24.869.082) 6376
23/56 0:03 +M23 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.f7 (24.881.933) 6355
24/56 0:03 +M23 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.f7 (25.014.078) 6363
25/56 0:04 +M23 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.f7 (25.417.972) 6340
26/56 0:05 +M20 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.Qg8 (39.988.465) 6675
27/56 0:07 +M20 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.Qg8 (48.299.955) 6820
28/56 0:07 +M20 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Bf2+ Kxf2 11.e8Q Bxe2+ 12.Kd4 Bg4 13.f6 Ke2 14.Qg8 (53.247.998) 6826
29/56 0:13 +M18 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bf1 10.Kd4 Bxe2 11.e8Q Bd1 12.f6 Bb3 13.f7 Kd1 14.f8Q (96.090.258) 7047
30/56 0:27 +M16 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Bg2 8.e6 Ke1 9.e7 Bxe4+ 10.Kxe4 Kd2 11.e8Q Kc3 12.Qxa4 Kd2 13.Qxa3 Kxe2 14.Be3 (199.519.599) 7316
31/56 0:38 +M16 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 g1R 7.Bxg1 Kxg1 8.e6 Kxh2 9.e7 Kg3 10.Ke3 Bg2 11.e8Q Bh3 12.Qg6+ Bg4 13.Qg5 Kg2 14.Qxg4+ (282.599.796) 7370
32/56 0:56 +M16 1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Kd3 Ke1 5.Bxg1 Kf1 6.Be3 Ke1 7.e6 g1R 8.Bxg1 Bg2 9.e7 Bxe4+ 10.Kxe4 Kd2 11.e8Q Kc3 12.Be3 Kb2 13.Qxa4 Ka1 14.Qd1+ (419.784.508) 7493
best move: Kd1-d2 time: 1:14.943 min n/s: 7.572.327 nodes: 562.646.680
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F.Huber
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Re: Mate in 19?

Post by F.Huber »

David Dahlem wrote:[d]2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - 0 1

Chest 5.1: Mate in 19

19/19 00:00 29.806 647.956 +M19 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Be3g5 Kf1f2 Bg5h4+ Kf2f1 Bh4e7 Kf1f2 Be7c5+ Kf2f1 Bc5xa3 Kf1f2 Ba3c5+ Kf2f1 e5e6 a4a3 Bc5d6 Kf1f2 Bd6g3+ Kf2f1 Bg3b8 Kf1f2 Bb8a7+ Kf2f1 Nc8b6 Kf1f2 Nb6d5+ Kf2f1 Ba7b8 Kf1f2 Bb8g3+ Kf2f1 Nd5e3+
Hi David,

I don't know from where you have this #19 result, but this position is in the ChestUCI database as #16:

2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - bm #16; --:-- @ C0/R0/K6/P2/X10;
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David Dahlem
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Re: Mate in 19?

Post by David Dahlem »

F.Huber wrote:
I don't know from where you have this #19 result, but this position is in the ChestUCI database as #16:

2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - bm #16; --:-- @ C0/R0/K6/P2/X10;
Hi Franz

Well, perhaps i was using the wrong mode in Chest. I used the AutoTurbo mode and since the proposed solution was mate in 19, that's what i searched for. This is the output from Chest ...

Chest 5.1:
FEN: 2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - (10+6)
Position-Analysis: C0/R0/K1/P1/X1 W:8/17
Parameters found in Database: #16; --:-- @ C0/R0/K6/P2/X10;
AutoTurbo-Search for Special-Mate [C1/R0/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R1/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R2/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-2/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R3/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-3/K0/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K1/P0/X0] in 19 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K2/P0/X0] in 19 ... (Hash=1024MB)
Mate in 19 found ! (1 Solution in 00:00)
19/19 00:00 29.806 647.956 +M19 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Be3g5 Kf1f2 Bg5h4+ Kf2f1 Bh4e7 Kf1f2 Be7c5+ Kf2f1 Bc5xa3 Kf1f2 Ba3c5+ Kf2f1 e5e6 a4a3 Bc5d6 Kf1f2 Bd6g3+ Kf2f1 Bg3b8 Kf1f2 Bb8a7+ Kf2f1 Nc8b6 Kf1f2 Nb6d5+ Kf2f1 Ba7b8 Kf1f2 Bb8g3+ Kf2f1 Nd5e3+

If i search for mate in 16, i get this output, no solution or pv after 2 minutes ...

Chest 5.1:
FEN: 2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - (10+6)
Position-Analysis: C0/R0/K1/P1/X1 W:8/17
Parameters found in Database: #16; --:-- @ C0/R0/K6/P2/X10;
AutoTurbo-Search for Special-Mate [C1/R0/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R1/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R2/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-2/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R3/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-3/K0/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K1/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K2/P0/X0] in 16 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K3/P0/X0] in 16 ... (Hash=1024MB)

???

How to get Chest to show the mating line when the position is in the database? I tried Normal mode and Database mode with the same result.

http://www.chess.com/forum/view/daily-p ... mate-in-19

Proposed solution ...

1.Kd2 a4 2.Bf4 Kf2 3.Be3+ Kf1 4.Bg5 Kf2 5.Bh4+ Kf1 6.Be7 Kf2 7.Bc5+ Kf1 8.Bxa3 Kf2 9.Bc5+ Kf1 10.e6 a3 11.Bd6 Kf2 12.Bg3+ Kf1 13.Bb8 Kf2 14.Ba7+ Kf1 15.Nb6 Kf2 16.Nd5+ Kf1 17.Bb8 Kf2 18.Bg3+ Kf1 19.Ne3#
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David Dahlem
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Re: Mate in 19?

Post by David Dahlem »

kgburcham wrote:doesnt matter David, game over
Of course it is! I didn't ask who wins. :roll:
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David Dahlem
Posts: 900
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Re: Mate in 19?

Post by David Dahlem »

F.Huber wrote: Hi David,

I don't know from where you have this #19 result, but this position is in the ChestUCI database as #16:

2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - bm #16; --:-- @ C0/R0/K6/P2/X10;
Hi Franz

As a test, i disabled the database, and searched for mate in 50.
Chest 5.1:
FEN: 2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - (10+6)
Position-Analysis: C0/R0/K1/P1/X1 W:8/17
AutoTurbo-Search for Special-Mate [C1/R0/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R1/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R2/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-2/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R3/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-3/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K1/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K2/P0/X0] in 50 ... (Hash=1024MB)

Mate in 19 found ! (1 Solution in 00:00)
19/19 00:00 29.806 647.956 +M19 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Be3g5 Kf1f2 Bg5h4+ Kf2f1 Bh4e7 Kf1f2 Be7c5+ Kf2f1 Bc5xa3 Kf1f2 Ba3c5+ Kf2f1 e5e6 a4a3 Bc5d6 Kf1f2 Bd6g3+ Kf2f1 Bg3b8 Kf1f2 Bb8a7+ Kf2f1 Nc8b6 Kf1f2 Nb6d5+ Kf2f1 Ba7b8 Kf1f2 Bb8g3+ Kf2f1 Nd5e3+

If it's a mate in 16, why does Chest say +M19?
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Dann Corbit
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Re: Mate in 19?

Post by Dann Corbit »

David Dahlem wrote:
F.Huber wrote: Hi David,

I don't know from where you have this #19 result, but this position is in the ChestUCI database as #16:

2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - bm #16; --:-- @ C0/R0/K6/P2/X10;
Hi Franz

As a test, i disabled the database, and searched for mate in 50.
Chest 5.1:
FEN: 2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - (10+6)
Position-Analysis: C0/R0/K1/P1/X1 W:8/17
AutoTurbo-Search for Special-Mate [C1/R0/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R1/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R2/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-2/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R3/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R-3/K0/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K1/P0/X0] in 50 ... (Hash=1024MB)
AutoTurbo-Search for Special-Mate [C0/R0/K2/P0/X0] in 50 ... (Hash=1024MB)

Mate in 19 found ! (1 Solution in 00:00)
19/19 00:00 29.806 647.956 +M19 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Be3g5 Kf1f2 Bg5h4+ Kf2f1 Bh4e7 Kf1f2 Be7c5+ Kf2f1 Bc5xa3 Kf1f2 Ba3c5+ Kf2f1 e5e6 a4a3 Bc5d6 Kf1f2 Bd6g3+ Kf2f1 Bg3b8 Kf1f2 Bb8a7+ Kf2f1 Nc8b6 Kf1f2 Nb6d5+ Kf2f1 Ba7b8 Kf1f2 Bb8g3+ Kf2f1 Nd5e3+

If it's a mate in 16, why does Chest say +M19?
Some of the mode settings are designed to be time savers, but they can result in a less than optimal mate.

The time savings can be significant.
This command:
chest319 -b -M 500 -z 16 dm16.epd
has been running on my PC for 2 hours and 44 minutes and it is not finished yet. When (and if) it does finish, I predict it will say mate in 16.
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F.Huber
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Re: Mate in 19?

Post by F.Huber »

David Dahlem wrote: How to get Chest to show the mating line when the position is in the database? I tried Normal mode and Database mode with the same result.
Hi David,

just use 'Special' mode - this automatically uses the correct parameter whenever the position is already in the database.

The time --:-- for this mate means that it's much too long for my old notebook CPU which I usually use for testing, so I can't tell you how long it will take. IIRC I've got these parametes from Ignacio Santos with his quite fast computer, and I guess it will need maybe 10 minutes.
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David Dahlem
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Re: Mate in 19?

Post by David Dahlem »

F.Huber wrote:
David Dahlem wrote: How to get Chest to show the mating line when the position is in the database? I tried Normal mode and Database mode with the same result.
just use 'Special' mode - this automatically uses the correct parameter whenever the position is already in the database.
Ok, thanks. Finally! Chest has so many modes and options, it's hard for my old brain to remember which settings to use for different situations. :oops:

Chest 5.1:
FEN: 2N5/8/8/p3PP2/2P1P3/p5B1/P3P1pP/3K1krb w - - (10+6)
Position-Analysis: C0/R0/K1/P1/X1 W:8/17
Parameters found in Database: #16; --:-- @ C0/R0/K6/P2/X10;
Search for Special-Mate [C0/R0/K6/P2/X10] in 16 ... (Hash=1024MB)
16 07:23 72.377.348 305.571 +M16 Kd1d2
Search completed ... (Time=441.98s)
Mate in 16 found ! (1 Solution in 07:21)
16/16 07:28 132.210.555 299.133 +M16 Kd1d2 a5a4 Bg3f4 Kf1f2 Bf4e3+ Kf2f1 Kd2d3 Kf1e1 Be3xg1 Ke1f1 Bg1e3 g2g1Q Be3xg1 Bh1xe4+ Kd3xe4 Kf1xg1 f5f6 Kg1f1 f6f7 Kf1e1 f7f8Q Ke1d2 Qf8d6+ Kd2xe2 Qd6d3+ Ke2f2 Qd3d2+ Kf2f1 Ke4f3 Kf1g1 Qd2g2+

Regards
Dave

Gentlemen, you can't fight in here! This is the War Room. - President Merkin Muffley from the "Dr. Strangelove" movie.
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h1a8
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Joined: Fri Jun 04, 2010 7:23 am

Re: Mate in 19?

Post by h1a8 »

where can i get chest 5.1? Is this the latest version?
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