Endgame Pos

[Paloma]

[fen]6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1[/fen]

The Solution is ... ? Score should be > 4.xx

Maybe mate in 52

[Hobacle]

1.Bb3+! Kg8 2.g7+! ...
2...Qxg7 3.Ne6+, 2.Kxg7 3.Be5+, so...
2...Nxg7 3.Nf7 Qg8 4. Nh6 Qh8 5.Be5 then 6.Bg8 +-

[Andrew]

Something has copied badly in your analysis. 1 ..... Kg8 is a null move?

Andrew

[Hobacle]

Something has copied badly in your analysis. 1 ..... Kg8 is a null move?

Andrew

That should be 1...Kf8. Sorry...

[peter]

[fen]6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1[/fen]

The Solution is ... ? Score should be > 4.xx

Maybe mate in 52

Ah, the Michael- Michael- team.

[Paloma]

[pgn][Event "12132018"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Annotator "?"]
[SetUp "1"]
[FEN "6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1"]
[PlyCount "33"]

1. Bb3+ $1 Kf8 2. g7+ Nxg7 3. Nf7 Qg8 4. Nh6 Qh8 5. Be5 Ke8 6.
Bg8 Kf8 7. Bd4 Qxg8 (7... c6 8. Kb4 Qxg8 9. Bc5+ Ke8 10. Nxg8 $18) 8. Bc5+ Ke8
9. Nxg8 Ne6 10. Be3 Kf8 11. Nh6 Kg7 12. Kb5 Kg6 13. Kc6 Ng5 14. Ng4 Kf5 15. Nf2
Nf3 16. Kxc7 {36#} Ne5 17. Bd4 {35#} 1-0

[/pgn]

[peter]

[pgn][Event "12132018"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Annotator "?"]
[SetUp "1"]
[FEN "6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1"]
[PlyCount "33"]

1. Bb3+ $1 Kf8 2. g7+ Nxg7 3. Nf7 Qg8 4. Nh6 Qh8 5. Be5 Ke8 6.
Bg8 Kf8 7. Bd4 Qxg8 (7... c6 8. Kb4 Qxg8 9. Bc5+ Ke8 10. Nxg8 $18) 8. Bc5+ Ke8
9. Nxg8 Ne6 10. Be3 Kf8 11. Nh6 Kg7 12. Kb5 Kg6 13. Kc6 Ng5 14. Ng4 Kf5 15. Nf2
Nf3 16. Kxc7 {36#} Ne5 17. Bd4 {35#} 1-0

[/pgn]

You understood my hint about the Michael- Michael- team, didn't you?
First one Michael more exactly named is Mihai Neghina, second one Michael is Co- Autor Roxlau.
"Smothering" was published 2016 in Schwalbe regards

[Andrew]

I found the problem at this page where there they follow a different line for blacks 5th move.

http://www.arves.org/arves/index.php/en ... walbe-2016

At the end of their line I tried a variety of engines, some could get a TB mate score but none gave
an actual mate score.

Andrew

[Ajedrecista]

Hello Andrew:

I found the problem at this page where there they follow a different line for blacks 5th move.

http://www.arves.org/arves/index.php/en ... walbe-2016

At the end of their line I tried a variety of engines, some could get a TB mate score but none gave an actual mate score.

Andrew

I found the publication of the problem thanks to Peter's last hint. It can be seen here:

https://www.dieschwalbe.de/download/pre ... n_2016.pdf

Problem 16887. Diagram at page 365 and solution at page 366.

3. Preis: 16887 von Mario Neghina & Michael Roxlau

1.Lb3+!
1.g7 S:g7 2.Lb3+ Se6!=
1.– Kf8 2.g7+! S:g7 3.Sf7 Dg8 4.Sh6 Dh8 5.Le5 Ke7 6.Lg8 Kf8
6.– D:g8 7.S:g8+ Kf7 8.Sh6+ Kg6 9.Sg4+-
7.Ld4! 7.Kb5 D:g8=
7.– Ke8
7.– D:g8 8.Lc5+ Ke8 9.S:g8+-
8.Kb5 Kd7 9.Le5!
9.Kc5 Kc8! 10.Kc6 Kb8=
9.– Ke8 9.– Kc8 10.Kc6+- ZZ 10.Kc6 Kf8 11.Ld4! D:g8 12.Lc5+ Ke8 13.S:g8+-

Die Dame wird auf eine reizvolle Art eingesperrt, was einen nachhaltigen Eindruck bei Lösern und Nachspielenden hinterlässt – und natürlich auch beim Preisrichter.

5.- ..., Ke7 is also analysed in the publication instead of 5.- ..., Ke8. 'ZZ' after '10.Kc6+-' stands for 'zugzwang' if I am not wrong.

I wonder which are the Chest parameters to solve the DTM problem once the queen is trapped. Very nice problem by the way!

Regards from Spain.

Ajedrecista.