# Original Problems (86)

## Original Problems (page 86)

Original fairy problems published during 2012 will participate in the informal tourney JF-2012

The site is mostly about fairies, but h# and s# are also welcomed for publication! Please send your problems to my e-mail: julia@juliasfairies.com

### Go to →List of Problems; →Page 85 ;  →Page 87

No.150 – hs#3 by Petko A. Petkov – A very surprising play of black Chameleons as forward battery-pieces! (JV)

No.151 – hs#3,5 by Petko A. Petkov – A Meredith with rich content! (JV)

Definitions:

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.

Anti-Andernach Chess: a unit (not King) changes color after its moves unless that move is a capture. (Or: a unit (King excluded) changes color on completion of a non-capturing move.)

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.

PAO(PA): Moves as Rook, but captures only by hopping over a hurdle to any square beyond.

You can сlick on “Solutions” to show or hide the solutions!

 No.150 Petko A. Petkov Bulgaria original-13.10.2012   hs#3              2 solutions           (3+14) Anti-Andernach Сhameleons: Bc7,Bd7,Qe4   Solutions: (click to show/hide)   I. 1.Qxc7 Кf3 2.Qxh2 CQf4 =wCS 3.CSxh5 = CB+ CBg4 =wCR#! – because of illegal self-checks not possible are the moves: 4. wCRg7=bCQ??; 4.wCBf7=bCR??; 4. Re7=bR??; 4.Qc7=bQ?? II. 1.Qxd7 Kd4 2.Qxb5 CQg4 =wCS 3.CSxf6 = CB+ CBe5 =wCR#! – because of illegal self-checks not possible are the moves: 4. wCRe7=bCQ??; 4.wCBe7=bCR??; 4.wCBg7=bCR??;4. Re7=bR??; 4.Qd7=bQ??   Play of black special masked battery, created by two Chameleons in B-phase; White Annihilation captures on c7/d7 which open the battery-line and execute also theme Zilahi; unpin of the black CQ -Chameleon which demonstrates line opening; model mates with multiple Anti-Andernach effects on the mating-moves. (Author) No.151 Petko A. Petkov Bulgaria original-13.10.2012   hs#3,5            3 solutions            (4+5) Grasshopper c3 PAOs: e2,g8,h2   Solutions: (click to show/hide)   I.1…PAc2 2.Rh6 Gc1 3.PAh5 PAc7 4.PAhg5+ Gxh6# II.1…PAd2 2.Rh4 Ge1 3.PAh3 PAd7 4.PAhg3+ Gxh4# III. 1…PAe3 2.Rh5 Gf3 3.PAh4 PAe7 4.PAhg4+ Gxh5#   Transformation of white PAO/Rook battery, combined with white Bristol. On the 4th move plays white PAO/Rook battery with simultaneous creation of indirect white anti-battery PAO/PAO. A good “cooperative” play between black Grasshopper and PAO. Model-mates in Meredith form. (Author)

The diagrams are made on WinChloe and its Echecs font is used for Logo design

### 5 Responses to Original Problems (86)

1. Ganapathi says:

Can’t help submitting my humble appreciation of Petkov’s 151-
the exact matching of Black Grasshopper’s final positioning on the correct diagonal to deliver mate after White’s successive Bristol operations on the h-file!

2. Seetharaman says:

While 151 is crystal clear, N.150 is complex and the play is full of Chameleon and Anti-Andernach effects ! It is not easy to grasp that with so many white pieces hanging around attacking the seventh rank it is mate !! Great problem !

• Seetharaman says:

Forgot to mention that the diagram needs correction to mention that WRe8 is chameleon

• Julia says:

Ram, sorry, but the diagram is correct. It was a simple Re8 in the original problem, and there’s no need to make that technical piece a Chameleon-piece. Or have I misunderstood you?

• Seetharaman says:

You are right! Sorry!