Original Problems, Julia’s Fairies – 2014 (II): May – August
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No.554 by Petko A. Petkov – With this problem author proposes a new theme – Chameleon Trio (shown for the first time?) – where three different Chameleons in a different phases step on the same square! Enjoy a complicated strategy, rich thematic complex and detailed author’s comments! (JV)
Anti-Andernach: A piece (excluding King) changes its color after any non-capturing move. After capture, the piece retains its color. Rooks on a1, h1, a8 and h8 can be used for castling, provided the usual other rules for that move are satisfied. After castling, Rooks do not change color, If White makes a non-capturing move with neutral or halfneutral piece, that piece becomes black and vice versa.
Chameleon: On completing a move, a Chameleon (from classical standard type) changes into another piece, in the sequence Q-S-B-R-Q… Promotion may be to a chameleon at any stage in the cycle.
No.554 Petko A. Petkov
original – 08.06.2014
hs#4,5 2 solutions (5+5)
Chameleons: Sa4, Bf7, Rg4, Qg6, Bg7, Bh3
Solutions: (click to show/hide)
I. 1…cQg6-e6=cS=w! 2.cSe6-f8=cB=b cSa4-b6=cB=w! (not 2…. cSa4-c5=cB=w?) 3.cBg7xf8=cR Kf5-f6 4.cBb6-c7=cR=b cRg4-g3=cQ=w 5.cBf7-g8=cR=b+ cRg8xf8=cQ # (not 5…cRc7-f7=cQ=w? – self-check!)
II. 1…cQg6-f6=cS=w! 2.cSf6-g8=cB=b cSa4-c5=cB=w! (not 2…. cSa4-b6=cB=w?) 3.cBf7xg8=cR Kf5-g6 4.cBc5- e7=cR=b cRg4-h4=cQ=w 5.cBg7-h8=cR=b + cRh8xg8=cQ # (not 5…cRe7-g7=cQ=w? – self-check!)
(C+ by Popeye 4,67)
I think that here is realized a new and paradoxical theme which can be called “?hameleon Trio“. The definition: “In a solution (or in a variant) on the same square “x” steps at least 3 different chameleons (white or/and black, neutral etc.) in a different chameleon phases!”
The ?hameleon Trio is demonstrated (probably for the first time) in the solution I this way: The thematic square is “f8”. At first, on f8 steps a black Chameleon in B phase (after a move 2.cSe6-f8=cB=b); at second, on f8 steps a white Chameleon in R phase (after a move 3.cBg7xf8=cR); at third, on f8 steps a black Chameleon in Q-phase (after a move 5…cRg8xf8=cQ #). Analogical play is demonstrated in the solution II on the square “g8”.
I hope that soon I will propose to the readers a more complete information about the ?hameleon Trio theme with a new examples! (Author)