shankarramNo.1073  N.Shankar Ram (India)


Original Problems, Julia’s Fairies – 2016 (I): January – June

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No.1073 N.Shankar Ram

original – 21.05.2016

Solutions: (click to show/hide)
white Ke4 Pb3 black Pb4 KRc6

h=2*           2 solutions           (2+2)
Kangaroo-Rose c6
(no bK)

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shankar ram
shankar ram
May 21, 2016 20:51

The stipulation is h=2
The set play is not interesting as it only repeats the actual, so I didn’t mention it.
With, the full solution is:
1.KRc2 Kd5 2.KRc6 Kxc6=
1… Kd3 2.KRc2 Kxc2=
1. KRc6 Kd5 2.KRc6 Kxc6=
1… Kd3 2.KRc2 Kxc2=

Laco Packa
Laco Packa
May 22, 2016 10:16

KR is a cunning fellow. But in my opinion (which I can not verify through WinChloe) the problem is cooked, such as.: 1. … Kf3 2.KRg2 Kxg2 or = 1 … Kf5 2.KRg6 Kxg6 =

May 22, 2016 10:35
Reply to  Laco Packa

Kangaroo-rose must stop on the first square after the hurdle.

Laco Packa
Laco Packa
May 22, 2016 10:50
Reply to  Joost

You are right. I was hypnotized by Kangaroo-Lion, which occurred a few days before.

Georgy Evseev
Georgy Evseev
May 23, 2016 09:49

On main page the piece is mentioned as Kangaroo-Lion, not as Kangaroo-Rose, so the description looks puzzling.

shankar ram
shankar ram
May 23, 2016 10:04
Reply to  Georgy Evseev

Yes.. I didn’t notice that.. Needs to be corrected.

Kjell Widlert
Kjell Widlert
May 24, 2016 22:26

Using the same hurdle twice in the same move – very amusing idea! I am still smiling.

Georgy Evseev
Georgy Evseev
May 25, 2016 11:37
Reply to  Kjell Widlert

BTW, is Rose-hopper not enough?
I have not tried to computer-test it, but it looks like this kind of hopper still can only oscillate between c2 and c6.

Or is it also possible to use something like Kangaroo2016-Rose (the piece which has to jump over 2016 pieces before stopping)?

shankar ram
shankar ram
May 25, 2016 16:43
Reply to  Georgy Evseev

Rose-hopper allows cooks/duals!
And yes, a Rose-Kangaroooo.. would also work! (jumps over oooo.. pieces ;-))

Laco Packa
Laco Packa
May 25, 2016 17:35
Reply to  shankar ram

You’re kidding, but something rational in it can be found. For example, Kangaroo3-Lion and a circle with two hurdles. In the position wKLe8 – bPc7, c3 may move Lion only to b5, then in the second move to any empty square of its circle (except b5).

Nikola Predrag
Nikola Predrag
May 25, 2016 19:47

-…”Rose-hopper allows cooks/duals!”…-

Popeye doesn’t allow null-moves so I can’t test it, but what about:
bRose-hopper (c6) and wFers (e4) or with wKe4 but wPb4/bPb5?

shankar ram
shankar ram
May 26, 2016 05:37

– Rose Hopper c6, Fers e4 is sound!
– Rose Hopper c6, WKe4, WPb4, BPb5 still has duals/cooks. Position of Ps makes no difference

Nikola Predrag
Nikola Predrag
May 26, 2016 15:17

Well, yes, bPb5 removes the cooks when Rose-hopper plays from c2 to f5 (using wKe3/d4 as a hurdle). But it may move from c6 to f3 over wKd4/e5 and then loose a hurdle.
So, wPb3,bPb4,bPb5 should at least remove the cooks with Rose-hopper playing to f5/f3.

In principle, the nature of Rose-Kangarooooo (which needs 2 or more hurdles) is used only for cook-stopping on a “small board” 8×8. Adding one file left to a-file would allow KRc2 to play to f5 over wKe3 twice (or more times).

The intended solutions require no more than a Rose-hopper.

Laco’s Kangaroo3-Lion offers interesting possibilities.

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