No.749 
Mike Neumeier (U.S.A.)

Warm welcome to Mike in Original problems section of JF!

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Original Problems, Julia’s Fairies – 2015 (I): January – June

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No.749 by Mike Neumeier –  A nonstandard way to the well known (classic) stalemate finals! (JV)


Definitions:

Grasshopper (G): Moves along Q-lines over another unit of either color to the square immediately beyond that unit. A capture may be made on arrival, but the hurdle is not affected.

Royal piece: Piece that executes a function of the King on the board.

Pser: This is the original definition by its inventor, Dan Meinking: A parry series-mover differs from a standard series-mover prior to the last move as follows:

  1. the series-side may give check during the series;
  2. when checked, the idle-side must immediately parry the threat;
  3. a parry-move may be helpful or defensive, depending on the problem-type (for example – in Pser-s# the parry-move is defensive);
  4. after a check-and-parry, the series-side continues the series.

Every Pser problem combines two stipulations:

Part 1 – Pser, which indicates the special series play with participation of both sides according to the author’s definition;

Part 2 – the kind of problem, according to well known stipulations, which can show direct play (n#, n=, s#, s= r#, r=, etc), help play (h#, h=, h==, etc) or mixed play (hs#, hs=, hs= =, etc).

(For more explanations about Pser see IGM Petko A. Petkov article “The Wonderful (new genre) Parry Series“)


No.749 Mike Neumeier
U.S.A.

original – 11.03.2015

Solutions: (click to show/hide)

White Kc4 Black Ka6 Ga5 Gb6

ser-h=8                                    (1+3)
Grasshoppers: a5, b6
b) Pser-h=11, white royal Pc4,
No white promotion


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seetharaman
seetharaman
March 13, 2015 14:00

Very neat demonstration of the difference between Serh= and Pserh=. Interesting that the starting position itself is echoed! Pity the change of the white royal piece is necessary!

Mike Neumeier
Mike Neumeier
March 14, 2015 05:00
Reply to  seetharaman

Thanks. Yes, if I could use the same royal in both, same genre, as a two-solution problem,
and still get diagram echoed with both solutions, I would be extremely satisfied!

Kjell Widlert
Kjell Widlert
March 13, 2015 18:40

I especially like the way the order of Black’s last two moves is determined in b)!

Mike Neumeier
Mike Neumeier
March 14, 2015 05:05
Reply to  Kjell Widlert

Thanks for noticing,
Kjell. As well in b), 1.Ga7 cannot be the key as it had been in a), as the first and only check to white would be mate!

Cornel Pacurar
March 13, 2015 21:25

Mike, is good to see that the Parry-Series ‘light’ is still on in Cincinnati! Maybe you should try a royal unit that allows for both solutions and with the same number of moves. Also, a higher number of check-and-parry moves would also be great.

Mike Neumeier
Mike Neumeier
March 14, 2015 05:15
Reply to  Cornel Pacurar

Hello Cornel! Your comments are exactly what Dan would have said. Reaching for more in pser would be his take, too. I wish he were around to help find a three-way echo as this, but as two-solution, same royal, same length in both, and a pser both ways! That would be very satisfying, indeed. I am just too lazy!

seetharaman
seetharaman
March 14, 2015 15:34
Reply to  Mike Neumeier

🙂