# No.978 (JL)

 No.978  Juraj Lörinc (Slovakia) Original Problems, Julia’s Fairies – 2015 (II): July – December    →Previous ; →Next ; →List 2015(II) Please send your original fairy problems to: julia@juliasfairies.com

No.978 by Juraj Lörinc – 3+1 variations in semi-r# problem. (JV)

Definitions:

Lion(LI): Moves along Queen lines over another unit of either color to any square beyond that unit. A capture may be made on arrival, but the hurdle is not affected.

PAO(PA): Chinese piece operating along Rook lines: moves as Rook, but captures only by hopping over a hurdle to any square beyond.

VAO(VA): Chinese piece operating along Bishop lines: moves as Bishop, but captures only by hopping over a hurdle to any square beyond.

 No.978 Juraj Lörinc Slovakia original – 23.12.2015 Solution: (click to show/hide) white Kd7 PAa7a8h1 VAb3d3 LIh7 Rh6 Pc4d4e4f5 black Kh8 PAc3 LIg3 semi-r#4                                 (12+3) Lion h7, g3 PAO a7, a8, h1, c3 VAO b3, d3 1.VAd3-c2 ! zugzwang. 1...PAc3-d3 + 2.Kd7-c8 + 2...Kh8-g7 3.LIh7-b7 + 3...Kg7*h6 4.PAa8-b8 4...LIg3-c3 # 1...PAc3-e3 2.Kd7-d8 + 2...Kh8-g7 3.LIh7-c7 + 3...Kg7*h6 4.PAa8-c8 4...LIg3-d3 # 1...PAc3-f3 2.Kd7-e8 + 2...Kh8-g7 3.LIh7-d7 + 3...Kg7*h6 4.PAa8-d8 4...LIg3-e3 # 1...LIg3*b3 2.LIh7-h3 + 2...Kh8-g8 3.Rh6-g6 + 3...Kg8-f8 4.LIh3-e6 4...LIb3-d3 # { (C+ by Popeye 4.73)} The key introduces all variations and allows check to wK. Then there are 3 main variations with bPA-wK duel ending in threefold chameleon echo mates with double selfblocks in each. (Note that there are two guards on the checkmating line after the W2, but they are neutralized in the 3rd moves by interference and capture). Additionally, there is the fourth variation with another model mate. (Author)

### 3 Responses to No.978 (JL)

1. shankar ram says:

The 3 Pao moves lead to anti-battery checks by the WK on the 8th rank, followed by a battery check and self block by the W Lion(which also makes an anticipatory interference with the W Pao a7), ending with another self block by the W Pao on the 8th rank. The final happy result is 3 linear echo mates.
Almost plays like a helpmate – which is typical of some more move R#s like this one. The additional by play with model mate is a good bonus in a lightly constructed position. A “Bohemian R#”? 😉
There are actually THREE guards on the mating lines which are neutralised:
1. Pao a7-c7/d7/e7
2. Lion h7-c7/d7/e7 (only exists after B2!)
3. Rh6-c6/d6/e6

Reminds me of Seetharaman’s hs#2, 6-13 place, G section, 9th WCCT, 2012-13!

• The scheme was found by me long long time ago, when I was inspired by some article on s# with model mates and fairy pieces. At that time (more than 10 years ago) I was somehow unable to finish the scheme.

Now I have found the scheme in the ideas file, when I was looking for something that I might develop either for Richter+Trommler JT or Munich fairy chess TT. Obviously, the scheme was not suitable for any of these, from the beginning, I just tried to finish it as an exercise – whether I can do now what I could not earlier. And somehow it worked…

So definitely intended as Bohemian.

2. seetharaman says:

The anti-battery mates by the WK in my problem is the similarity, but of course it is an entirely different theme!