Original Problems (page 66)
Original fairy problems published during 2012 will participate in the informal tourney JF-2012.
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No.125 – #2 by Jean-Marc LOUSTAU – A difficult fairy-twomover. (JV)
LEO(LE): Moves as Queen, but captures only by hopping over a hurdle to any square beyond.
PAO(PA): Moves as Rook, but captures only by hopping over a hurdle to any square beyond.
VAO(VA): Moves as Bishop, but captures only by hopping over a hurdle to any square beyond.
NAO(NA): Moves as Leo, but on Nightrider-lines instead of Queen-lines.
Nightrider(N): A Rider along a straight line on squares lying a Knight`s move away from each other.
Equihopper and Non-Stop Equihopper(NE): Moves along any line over another unit of either colour to a square situated such that the hurdle stands at the mid-point between the Equihopper’s departure and arrival squares. The English (standard) Equihopper cannot pass over an obstruction other than the hurdle when playing along Queen-lines. The non-stop/French Equihopper does not have this restriction.
You can сlick on “Solutions” to show or hide the solutions!
No.125 Jean-Marc LOUSTAU
original – 06.09.2012
PAOs: PAb2, PAc5, PAg6
VAOs: VAg4, VAh1
NAOs: NAe6, NAf8, NAg2
Non-stop Equihoppers: NEh2, NEh5
Solution: (click to show/hide)
1… Leo~+ ? 2 Nc6# A, Bc6# B, Rc6# C
So Black plays more carefully:
1… LEf4+! 2 Nc6# A (2 Bc6+? 2 Rc6+? Kd8!)
1… LEf5+! 2 Bc6# B (2 Rc6+? 2 Nc6+? Kd7!)
1… LEf6+! 2 Rc6# C (2 Nc6+? 2 Bc6+? Kd6!)
This is a pure anti-triple.
And also: 1… NAd7 2 PAc2# X
1 NAg5!! threats 2 Re6#
1… Leo~+ 2 NA2e6# changed
So, black corrections:
1… LEf4+! 2 Bc6# B (2 NA2e6? Impossible!)
1… LEf5+! 2 Rc6# C (2 NA2e6+? Kc8!)
1… LEf6+! 2 Nc6# A (2 NA2e6+? Kxb6!)
The by play is to be noticed:
1… NAd7 2 VAe6# changed
1… Sd6 2 PAe6# (2 PAc2+? Sc4!)
1… Kc8 2 PAc2# X transferred
1… Kxb6 2 Na6#
– Lacny theme with:
• Crossed-checks in all variations in the 2 phasis
• Thematic variations by the same black unit
• Thematic anti-battery mates on the same square c6, with white cyclic Grimshaw in each phasis
– 2 flights-giving key
– in the by-play and threat, 4 anti-battery mates on e6, each of the thematic white pieces PAg6, VAg4, NAg2 mating in turn
– as a “by-theme” we have black correction (including 2 echoed variations with a kind of specific chinese A theme) and a half-Ruchlis (1… NAd7/Kc8)
The diagrams are made on WinChloe and its Echecs font is used for Logo design