Originals 23-300617

 

J’F

Original Problems

23-30th of June, 2017

  • (30.06) No.1235 – Ladislav Salai jr., Emil Klemanič, Ladislav Packa, Michal Dragoun (s#2 ; Rook-Lion, Bishop-Lion, Nightrider-Lion).
  • (30.06) No.1233.1 – Jean-Marc Loustau (#2 ; VAO, PAO, NAO). Improved version to No.1233.
  • (29.06) No.1234 – Peter Harris (h#3 ; Haaner Chess, TransmutedKings, Anti-Circe Cheylan, Super-Circe, Anti-Andernach Chess). The problem has author’s solutions till Popeye version 4.61, with testing time around 10min., all the next versions show no solutions, and the last version Popeye 4.77 takes hours for testing (JV).
  • (26.06) No.1233 – Jean-Marc Loustau (#2 ; VAO, PAO, NAO).
  • (24.06) No.1232 – Nicolas Dupont (PG 6.5 ; Checkmate position, Undefined pieces, Disparate).
  • (24.06) No.1231 – Michael Grushko (ser-h#8 ; Phantom Chess, Ghost Chess ; Grasshopper).
  • (24.06) No.1230 – Georgy Evseev & Boris Shorokhov (h=5 ; Circe). Full check for 5 moves is impossible on available computers. (Authors)
  • (23.06) No.1229 – Vladimir Kozhakin (#3 ; KoeKo).
  • (23.06) No.1228 – Gani Ganapathi & K.Seetharaman (ser-h#7 ; Circe Equipollents ; Royal Gnu).

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe’s graphics.


All previously published problems you can find in the subsections of Original Problems menu on the top. The judge of JF-2017(I)Tadashi Wakashima. The judge of Retro & PG problems 2017-2018: Dirk Borst.


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