Mate in 19 shortened to mate in 17 by The Huntsman 1

[acase]

I think I found the mate in 13 on this one in the ChestUCI database that had no solution, try it out, as it's not easy:

[pgn][Event "Mate in 13"]
[Site "Columbus, Ohio"]
[Date "2024.02.22"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3K1nbr/1p3pp1/6kp/2p2p1R/1p3P2/3Pb3/p1Q1B3/R2N2B1 w - - 0 1"]
[Time "21:56:16"]
[TimeControl "0"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "human"]
[BlackType "human"]

1. d4 Ne6+ 2. Ke7 Nxd4 3. Nxe3 Nxc2 4. Nxf5 Nxa1 5. Bd4 cxd4 6. Bd3 Kxh5 7. Be2+
Kg6 8. Nh4+ Kh7 9. Bh5 Nb3 10. f5 g6 11. Kf6 gxh5 12. Ng6 fxg6 13. fxg6# 1-0[/pgn]

[Ajedrecista]

Hello Andrew:

I think I found the mate in 13 on this one in the ChestUCI database that had no solution, try it out, as it's not easy:

[pgn][Event "Mate in 13"]
[Site "Columbus, Ohio"]
[Date "2024.02.22"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3K1nbr/1p3pp1/6kp/2p2p1R/1p3P2/3Pb3/p1Q1B3/R2N2B1 w - - 0 1"]
[Time "21:56:16"]
[TimeControl "0"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "human"]
[BlackType "human"]

1. d4 Ne6+ 2. Ke7 Nxd4 3. Nxe3 Nxc2 4. Nxf5 Nxa1 5. Bd4 cxd4 6. Bd3 Kxh5 7. Be2+
Kg6 8. Nh4+ Kh7 9. Bh5 Nb3 10. f5 g6 11. Kf6 gxh5 12. Ng6 fxg6 13. fxg6# 1-0[/pgn]

Congratulations for find the solution!

This is a problem from 2005 by Peter Krug that won a special honourable mention:
https://pdb.dieschwalbe.de/P1255476

Problem published at Die Schwalbe No. 215 (October 2005), page 262, Problem 12793:
https://dieschwalbe.de/hefte/schwalbe_2 ... r_2005.pdf

Solution published at Die Schwalbe No. 218 (April 2006), page 440, Problem 12793:
https://dieschwalbe.de/hefte/schwalbe_2 ... l_2006.pdf

The solution says that a computer found the solution in 50 days! Shredder 6 is also mentioned, but not within the 50-day solution.

Few more can be said about this FANTASTIC problem. ALL-IN!

Regards from Spain.

Ajedrecista.

[acase]

Hello Andrew:

I think I found the mate in 13 on this one in the ChestUCI database that had no solution, try it out, as it's not easy:

[pgn][Event "Mate in 13"]
[Site "Columbus, Ohio"]
[Date "2024.02.22"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3K1nbr/1p3pp1/6kp/2p2p1R/1p3P2/3Pb3/p1Q1B3/R2N2B1 w - - 0 1"]
[Time "21:56:16"]
[TimeControl "0"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "human"]
[BlackType "human"]

1. d4 Ne6+ 2. Ke7 Nxd4 3. Nxe3 Nxc2 4. Nxf5 Nxa1 5. Bd4 cxd4 6. Bd3 Kxh5 7. Be2+
Kg6 8. Nh4+ Kh7 9. Bh5 Nb3 10. f5 g6 11. Kf6 gxh5 12. Ng6 fxg6 13. fxg6# 1-0[/pgn]

Congratulations for find the solution!

This is a problem from 2005 by Peter Krug that won a special honourable mention:
https://pdb.dieschwalbe.de/P1255476

Problem published at Die Schwalbe No. 215 (October 2005), page 262, Problem 12793:
https://dieschwalbe.de/hefte/schwalbe_2 ... r_2005.pdf

Solution published at Die Schwalbe No. 218 (April 2006), page 440, Problem 12793:
https://dieschwalbe.de/hefte/schwalbe_2 ... l_2006.pdf

The solution says that a computer found the solution in 50 days! Shredder 6 is also mentioned, but not within the 50-day solution.

Few more can be said about this FANTASTIC problem. ALL-IN!

Regards from Spain.

Ajedrecista.

Thanks Jesus for identifying this problem and the links, now I know where it came from. There was another real beauty by Peter Krug around that time also that was a mate in 23 from around 2004 that I am of course sure you are aware of that had two under-promotions in it. It's in the database also and it's quite brilliant.

[ImNotStockfish]

I think I found the mate in 13 on this one in the ChestUCI database that had no solution, try it out, as it's not easy:

[pgn][Event "Mate in 13"]
[Site "Columbus, Ohio"]
[Date "2024.02.22"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3K1nbr/1p3pp1/6kp/2p2p1R/1p3P2/3Pb3/p1Q1B3/R2N2B1 w - - 0 1"]
[Time "21:56:16"]
[TimeControl "0"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "human"]
[BlackType "human"]

1. d4 Ne6+ 2. Ke7 Nxd4 3. Nxe3 Nxc2 4. Nxf5 Nxa1 5. Bd4 cxd4 6. Bd3 Kxh5 7. Be2+
Kg6 8. Nh4+ Kh7 9. Bh5 Nb3 10. f5 g6 11. Kf6 gxh5 12. Ng6 fxg6 13. fxg6# 1-0[/pgn]

I'm sorry to tell you that you simply wasted computer resources finding the mate.
The PV was added to the database a month ago

https://github.com/vondele/matetrack/bl ... .epd#L5601

[Ajedrecista]

Hello Andrew:

Thanks Jesus for identifying this problem and the links, now I know where it came from. There was another real beauty by Peter Krug around that time also that was a mate in 23 from around 2004 that I am of course sure you are aware of that had two under-promotions in it. It's in the database also and it's quite brilliant.

I was not aware, but I found it quickly thanks to your hints. Following the template of my previous post:

[d]3K4/2p2p2/2P2P2/4R3/R1p5/1prp2p1/1prp2P1/1kbB4 w - - 0 1

This is a problem from 2004 by Peter Krug:
https://yacpdb.org/#557613 (Typo: it is Problem 12326 instead of 12328).
https://pdb.dieschwalbe.de/P1322990

Problem published at Die Schwalbe No. 208 (August 2004), page 508, Problem 12326:
https://dieschwalbe.de/hefte/schwalbe_2 ... t_2004.pdf
The problem was misprinted as #18 and a different position; or was an early cooked version.

Solution published at Die Schwalbe No. 211 (February 2005), page 42, Problem 12326v:
https://dieschwalbe.de/hefte/schwalbe_2 ... r_2005.pdf
The problem was reprinted in its current form and was labelled as Korrekturfassung (correct version).

I liked the other problem more, but I must say that this one is also very good. What a great composer!

Regards from Spain.

Ajedrecista.

[acase]

I think I found the mate in 13 on this one in the ChestUCI database that had no solution, try it out, as it's not easy:

[pgn][Event "Mate in 13"]
[Site "Columbus, Ohio"]
[Date "2024.02.22"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3K1nbr/1p3pp1/6kp/2p2p1R/1p3P2/3Pb3/p1Q1B3/R2N2B1 w - - 0 1"]
[Time "21:56:16"]
[TimeControl "0"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "human"]
[BlackType "human"]

1. d4 Ne6+ 2. Ke7 Nxd4 3. Nxe3 Nxc2 4. Nxf5 Nxa1 5. Bd4 cxd4 6. Bd3 Kxh5 7. Be2+
Kg6 8. Nh4+ Kh7 9. Bh5 Nb3 10. f5 g6 11. Kf6 gxh5 12. Ng6 fxg6 13. fxg6# 1-0[/pgn]

I'm sorry to tell you that you simply wasted computer resources finding the mate.
The PV was added to the database a month ago

https://github.com/vondele/matetrack/bl ... .epd#L5601

Hi Sam,

Oh well, it was fun finally "getting it". Thanks for the link with all of the PVs found so far.

[acase]

Hello Andrew:

Thanks Jesus for identifying this problem and the links, now I know where it came from. There was another real beauty by Peter Krug around that time also that was a mate in 23 from around 2004 that I am of course sure you are aware of that had two under-promotions in it. It's in the database also and it's quite brilliant.

I was not aware, but I found it quickly thanks to your hints. Following the template of my previous post:

[d]3K4/2p2p2/2P2P2/4R3/R1p5/1prp2p1/1prp2P1/1kbB4 w - - 0 1

This is a problem from 2004 by Peter Krug:
https://yacpdb.org/#557613 (Typo: it is Problem 12326 instead of 12328).
https://pdb.dieschwalbe.de/P1322990

Problem published at Die Schwalbe No. 208 (August 2004), page 508, Problem 12326:
https://dieschwalbe.de/hefte/schwalbe_2 ... t_2004.pdf
The problem was misprinted as #18 and a different position; or was an early cooked version.

Solution published at Die Schwalbe No. 211 (February 2005), page 42, Problem 12326v:
https://dieschwalbe.de/hefte/schwalbe_2 ... r_2005.pdf
The problem was reprinted in its current form and was labelled as Korrekturfassung (correct version).

I liked the other problem more, but I must say that this one is also very good. What a great composer!

Regards from Spain.

Ajedrecista.

Hi Jesus,

That is exactly the one, once again thanks for the links! and indeed Peter Krug was definitely a great composer! also this ChestUCI database has some pretty awesome directmate problems in it, so kudos to whoever gathered all of these problems into the epd.

Kudos to Franz Huber also for making Chest into a UCI compatible engine, and to Heiner Marxen for the great Chest mate finder.