# No.705 (LK)

 No.705 Ľuboš Kekely (Словакия) Теплое приветствие для Ľuboš в разделе Оригинальных задач JF! Оригинальные задачи, Julia’s Fairies – 2015 (I): январь – июнь    →Предыдущая ; →Следующая ; →Список 2015(I) Пожалуйста, присылайте свои оригинальные сказочные задачи на: julia@juliasfairies.com

No.705 – Ľuboš Kekely – Длинная SAT-игра с неожиданными финалами! (JV)

Определение:

SAT: Король находится под шахом в случае, если он может пойти хотя бы на одно поле, не контролируемое стороной противника.

 No.705 Ľuboš KekelySlovakiaoriginal – 25.01.2015 Solutions: (click to show/hide) white   kh4 se8 pa6c6f2f6 black kh8 rg8 rh7 pb7f3f4f5f7 ser-hs#10     2 solutions         (6+8) SAT 1.b7-b5 2.b5-b4 3.b4-b3 4.b3-b2 5.b2-b1=B 6.Bb1-d3 7.Bd3-f1 8.Bf1-h3 { } 9.Bh3-g4 Kh4-h3 { tempo (9.- Kh5?)} 10.Bg4-h5 # { (1.b6? ... 11.Bh5#)} 1.b7*a6 2.a6-a5 3.a5-a4 4.a4-a3 5.a3-a2 6.a2-a1=B { } 7.Ba1*f6 {(7.- S~+? 8.Bg7+ Kh3!, 7.- Bxf6+? 8.Rgg7!)} { } 8.Bf6-g5 9.f7-f6 c6-c7 {tempo (9.- Kh3?, 9.- Kh5?)} 10.Bg5-h6 # { (1.bxc6? ... 11.Bh6#) (C+ by Popeye 4.69)} Pickaniny. Excelsior. Minor promotions to bishops. Self-walling-in. Colour echo. Antiduals. Zugzwangs. (Author)

### 7 комментариев: No.705 (LK)

1. Kjell Widlert пишет:

An echo of a strange s#1 position. It is illegal for Black to move one of his rooks (because that would give a flight-square to the black king), so he is in zugzwang.

“2 solutions” seems to be missing from the stipulation.

And is the definition of SAT really correct? I think a king is in check if he can move to AT LEAST one square not controlled by the opposite side ( not “only one”).

• Julia пишет:

Thank you, Kjell! “2 solutions”, of course, added under the diagram. I’m not sure about what is correct definition of SAT…

• Juraj Lörinc пишет:

Actually, I understand position of two black rooks as being pinned as their movement would mean check to black king. A kind of strange pin without pinning piece, based solely on the fairy condition. On the other hand, White can unpin them, by additional attack the sqaure the rooks are blocking.

2. dupont пишет:

Kjell is right. My working definition of SAT is “A King is in check if it can move to a square which is not observed by the opponent side.”

Of course “a square” means “at least one square” and not “only one square”. This is the way Popeye and WinChloe are understanding the SAT condition.

• Julia пишет:

Ok, I’ve corrected SAT definition, thanks!!

3. seetharaman пишет:

Interesting “Pickaninny” (?). The other two parts appear as tries!

• Juraj Lörinc пишет:

While choice of 1.bxa6 and 1.bxc6 is plausible, nobody would really try 1.b6 instread of 1.b5 in such seriesmover.