Alexandr Fier Can’t Sleep

[Wayne Komer]

Alexandr Fier Can’t Sleep

December 15, 2018

From:

https://twitter.com/GMAlexFier?ref_s...ess-news.ru%2F

Alexandr Fier: Spent the whole night stressed dreaming about this position. People were telling me that Black wins and I was going crazy because I could not find how. Terrible nightmare!



White to play, Black to win



Spoiler

1.Ka1 { -3.64/62 } 1...Kc2 2.Bf6 Nb4 3.Bc3 Nd3 4.Bf6 Be4 5.Bd4 Kc1 6.Bc3 Kd1 7.Bf6 Ne1 8.Be5 Nc2+ 9.Kb1 Nb4+ 10.Ka1 Kc1 11.Bf4+ Kc2 12.Be3 Bf3 13.Bd4 Nd3 14.Bc3 Ba8 15.Bf6 Bd5 16.Bc3 Bf3 17.Bf6 Bh1 18.Bc3 Bd5 19.Bd4 Kd1 20.Bc3 Kc1 21.Bd4 Bb7 22.Bc3 Be4 23.Bf6 Ne1 24.Bg5+ Kc2 25.Bf6 Nf3 26.Bd4 Bd5 27.Bc3 Kc1 28.Bd4 Kd1 29.Bg7 ( 29.Bg7 { -3.64/43 } 29...Kc2 30.Bd4 Ne1 31.Bc3 Kd1 32.Be5 Nd3 33.Bg7 Bb7 34.Kb1 Be4 35.Ka1 Nb4 36.Bh6 Nc2+ 37.Kb1 Ne1+ 38.Ka1 Kc2 39.Bg5 Nd3 40.Bf6 Bb7 41.Bc3 Kc1 42.Bd4 Nb4 43.Be3+ Kd1 44.Bh6 Nd3 45.Bg7 Be4 46.Bc3 Kc1 47.Bf6 Ne1 ) ( 29.Bg7 { -3.64/43 } 29...Kc2 30.Bd4 Ne1 31.Bc3 Kd1 32.Be5 Nd3 33.Bg7 Bb7 34.Kb1 Be4 35.Ka1 Nb4 36.Bh6 Nc2+ 37.Kb1 Ne1+ 38.Ka1 Kc2 39.Bg5 Nd3 40.Bf6 Bb7 41.Bc3 Kc1 42.Bd4 Nb4 43.Be3+ Kd1 44.Bh6 Nd3 45.Bg7 Be4 46.Bc3 Kc1 47.Bf6 Ne1 )

If 48.Bg5+, can’t see the win
If 48.Be5 Nc2#
If 48.Bd4 Nc2#

[Bator Sambuev]

According tablebase it's a draw.

[Ken MacDonald]

According tablebase it's a draw.

Could you please list the URL for a 7-piece TableBase? I only have the 6-piece.

Thanks.

[Hans Jung]

Another example of how hard chess can be (not that I want to discourage anyone - it would be lovely to have a young mind again)

[Egidijus Zeromskis]

Could you please list the URL for a 7-piece TableBase? I only have the 6-piece.

Thanks.

http://tb7.chessok.com/about-site

"Imagine how many hard drives are essential for providing the evaluation and the best move for any position. 1000 disks and Petabytes of data on them? Fortunately there is a possibility to compress data and there is need only in keeping 100 TB of data. Compression also was not a simple task compared by complexity with calculating of tables.

Even with high level of compression the size of tablebases is tremendous and is not available for storing them on typical desktop computer. So this site was created for providing online access to server with tablebases."
...

"Free Android application

One more way to access 7-man tablebases without having a key is to use Android application. Search for Lomonosov Tablebases"

[Ken MacDonald]

Thank you.

[Bator Sambuev]

Could you please list the URL for a 7-piece TableBase? I only have the 6-piece.

Thanks.

I use Android app "Lomonosov tablebases"

[Ken MacDonald]

I use Android app "Lomonosov tablebases"

Thank you.