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MICHAEL GRUSHKO
NEW !!!
Presentation of a New fairy condition
I propose a new fairy condition:
Super Phantom Chess: Any unit including king may move either normally (from its current square) or as though from its Circe rebirth square if the latter is vacant.
(All conditions Phantom Chess kings plus)

Here is Problem - Example
MICHAEL GRUSHKO
original – 16.04.2015
fairy tournament JF-2015(I)
С+. Popeye -4.65
Stipulation H#2.5
Condition SUPER PhantomChess
Pieces
Black
Neutral Kh4 Pf7 Pe2
A)
nKh4-h3 2.nPe2-e6 nPf7-f8=nQ 3.nQf8-c5 nKh3-e2# 1…
B) nPf7h7
. 1...nKh4-d2 2.nPe2-e1=nR nRe1-a7 3.nKd2-c2 nPh7-h8=nQ#
C) nPe2h2
. 1...nKh4-h3 2.nPh2-h1=nS nPf7-f8=nQ 3.nQf8-g7 nKh3-f1#
D) nPe2c2
1…nKh4-h3 2.nPc2-c1=nQ nPf7-f8=nQ 3.nQf8-f6 nKh3-e2#

The problem with this condition I checked on Popeye 4.65. is a C +. Popeye 4.65 checks with Kings

I can't find the basic logic consistency of Phantom chess so I repeat the question:
What about the zero-moves?
Could wBh3 move to h3 as though from f1? What forbids such a zero move?

Popeye (4.69) does not allow wPh3 to “pass through itself” as h3-h2-h4.
Add a wLion h2 and it can play LIh2-h8-h1, over Pg3 and “through itself”.
But not LIh2-h8-h2 “onto itself”.

If a zero move is legal according to the inventor of some piece or condition, then both Winchloe and Popeye are wrong. Or, should people already be instructed by the computers as in some SF?
A human tells to computers what to do, not the opposite.

Anyway, what is a zero move for Popeye. I repeat my comment for No.751:
Popeye finds the solution for the following:
White Kc6 Pc4 Qa2 Pc2
Black Ka4 Bb4 Qa3 Bb3
Stipulation H#2
Condition AntiCirce Circe

1.Qa3*a2[bQa2->d8][+wQd1] Qd1*d8[wQd8->d1][+bQd8] 2.Qd8-a5 c2*b3[wPb3->b2][+bBc8] #Popeye finds the solution for the following:
White Kc6 Pc4 Qa2 Pc2
Black Ka4 Bb4 Qa3 Bb3
Stipulation H#2
Condition AntiCirce Circe
1.Qa3*a2[bQa2->d8][+wQd1] Qd1*d8[wQd8->d1][+bQd8] 2.Qd8-a5 c2*b3[wPb3->b2][+bBc8] #
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I speak about the Phantom-move wPh3-(h2)-h4 and not about h3-h4. Why is it not allowed by Popeye when it is allowed for the Lion to "pass through itself"?
(For a wPh5, it's allowed to play h5-(h2)-h4.)

Zero move is a move, it is not skipping a move. So, what might be the reason to forbid such a move? And where can be found the "convention" which forbids it?

First it must be defined what is a move and only then Popeye could claim that zero move is illegal.
A piece departs, travels and arrives - that's what Popeye doesn't apply.
But what definition of a move it does apply?
Why it does allow (wLIh2,wPh3) 1.LIh1 and does not allow 1.LIh2?
Does the Lion depart from h2 before any arrival or not?
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..." I can think of only one case where the double-step is important"...
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One case is enough to prove a nonsense.
Put bPg6 to g4 in your example and there is the solution. It seems that what is allowed to a Lion is not allowed to a Pawn- virtually passing through itself.

Yes, that's why an exact definition is needed.
If the real piece occupies the square all the time during the "phantom's move", the consequences have to be accepted or the definition must specify possible exceptions to the "principle".

And why Popeye treats a Lion differently than a Pawn?
How can the program work, without changing the whatever logic?