Originals November 2020(2)


JF Original Problems | November, 2020(2)

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: János Csák (Hungary) & Aleksey Oganesjan (Russia)

  • (28.11) No.1563 (h#4 ; Grasshopper) Niels Danstrup (Denmark). An interesting coincidence about the numbers: the previous problem by Niels was No.1553 on the date 28.10!
  • (26.11) No.1562 (h#4 ; Functionary Chess) Oleg Paradzinskij (Ukraine). Warm welcome to Oleg!
  • (24.11) No.1561 (h#2 ; HurdleColourChanging pieces, Lion, Rook-Lion, Rose-Lion) Michal Dragoun (Czehia). The problem is not computer-tested – I found firstly geometrical pattern and then I discovered, that neither Popeye nor WinChloe are able to test Andernach roselion…(Author). Important to note two different names for the same property: Andernach hoppers = HurdleColourChanging pieces.

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals November 2020

JF Original Problems | November, 2020

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list…

  • (16.11) No.1560 (PG 9 ; Nanna Chess) Gregor Werner (Germany). Warm welcome to Gregor!
  • (15.11) No.1559 (s#7 ; Circe) Ivan Bryukhanov (Ukraine). Welcome back after 8 years break! 😉
  • (15.11) No.1558 (PG 2.5, 7-fold checkmate ; Add pieces, KoBul Kings, Make&Take) Pierre Tritten (France). Just an empty board?! (no animation)
  • (15.11) No.1557 (hs#2 ; Grasshopper, PAO, VAO) Georgy Evseev & Boris Shorokhov (Russia). Welcome to solve!
  • (06.11) No.1556 (hs=3 ; AntiCirce) Gábor Tar (Hungary). „Anticice pin” on the same square.
  • (06.11) No.1551.1 (ser-s#21 ; Circe Rex Inclusiv) Dirk Borst (Netherlands). Correction to No.1551: bPe7 is added to correct the cook found by Arno Tüngler and Kjell Widlert
  • (06.11) No.1525.2 (h=10.5) Anatoly Stepochkin & Sergey Shumeiko (Russia). Improvement to No.1525.1: same idea, but nicer solution.
  • (03.11) No.1555 (hs#3.5) János Csák & Gábor Tar (Hungary). Warm welcome to János!
  • (02.11) No.1554 (hs#4) Vitaly Medintsev (Russia). ODT model mates and something more to discover…

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals October 2020 (2)

JF Original Problems | October, 2020 (2)

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list…

  • (28.10) No.1553 (h#3 ; Grasshopper ; Take & Make) Niels Danstrup (Denmark). “I have made some ChessProblems back in 1977 and 1978 (!), and have started again in 2020. – Welcome back and to JF!
  • (27.10) No.1552 (h#2 ; Take & Make) Jacques Rotenberg & Pierre Tritten (Israel / France). “Paradoxical specific play…”
  • (27.10) No.1551 (ser-s#21 ; Circe Rex Inclusiv) Dirk Borst (Netherlands). I’ve got used to see Dirk’s name on JF while he was a judge of Retro&PG problems (JF-R2017-18)  and absolutely surprised now to see this is the first Dirk’s problem I publish on JF! Is it possible at all? 😉 Warm welcome, Dirk!

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals October 2020

JF Original Problems | October, 2020

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list

  • (22.10) No.1550 (h#8; Maximummer) Anatoly Stepochkin (Russia). If bQ&bR would exchange their places it would be #1…
  • (19.10) No.1549 (hs#3; Mars Circe) Armin Geister & Daniel Papack (Germany). “inspired by R. Kohring”
  • (17.10) No.1548 (-8 & #1 Proca ; Circe Assassin) Paul Rãican & Bojan Bašić (Romania / Serbia).
  • (14.10) No.1547 (hs#5; Anti-Circe) Dmitri Turevski (Russia). Could be challenging for solvers!
  • (14.10) No.1496.2 (-13 & s#1 Proca ; Anti-Circe Cheylan) Paul Rãican & Klaus Wenda (Romania / Austria). An improvement to No.1496 is made with forward stipulation changed to s#1 and Anti-Circe type to Cheylan.
  • (13.10) No.1545.1 (h#2.5 ; Circe) Ivo Tominić (Croatia). An improvement to No.1545: “an improvement of my 1545 in two respects:
    1) bSg2 is replaced by bP, 2) unnecessary capture on f3 is avoided.
    Another wP put on e3 recloses third rank for Rb3; due to the consequential loss of thematic diagonal bQ is transfered to d5. Black Pe6 becomes superfluous when position is rotated against a vertical axis (a1=h1)”

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals September 2020 (2)

JF Original Problems | September, 2020 (2)

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list…

  • (30.09) No.1546 (hs#9) Torsten Linß (Germany): “I hope, this time Arno likes the interaction between the two sides 😉 “
  • (25.09) No.1545 (h#2.5 ; Circe) Ivo Tominić (Croatia). “White lines of action are intersecting on the squares b2, d2 and e2 with the black lines guarding the first rank…
    Warm welcome to Ivo!
  • (20.09) No.1540.1 (h#2 ; Anti-Köko) Manikumar S (India). Just a little improvement to the problem No.1540: a better twin suggested in the comments by Joost.
  • (19.09) No.1544 (s#2 ; Royal Grasshopper ; SAT) Neal Turner (Finland). If the problem should be C+? Promotion ignores the royalty of G.
  • (18.09) No.1543 (ser-hs+15) Ľuboš Kekely (Slovakia). “Double excelsior. Minor promotions.”
  • (18.09) No.1542 (hs#5.5) Anatoly Stepochkin (Russia).
  • (16.09) No.1541 (hs#3.5) Petko Petkov & Geoff Foster (Bulgaria / Australia).
    Happy birthday to me! ☺ ❀     Thank you!

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals September 2020

JF Original Problems | September, 2020

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list…

  • (13.09) No.1540 (h#2 ; Anti-Köko) Manikumar S (India). Warm welcome to Dr.Manikumar – first time in JF Problems! “Two of our composers in India: Manikumar in Chennai and Phanibhushan in Bangalore are also doctors(neonatologists). They are involved in newborn and pediatric care, including Covid positive cases.” (Shankar Ram @MatPlus forum)
  • (13.09) No.1539 (-5 & s#1 Proca ; Anti-Circe Cheylan) Andreas Thoma (Germany). Gladly joining Andreas with Happy birthday wishes to Klaus Wenda!
  • (10.09) No.1538 (h#2 ; Take&Make) Yevhen Trakhtman (Ukraine). Glad to see one of the youngest fairy composers already the 2nd time on JF!
  • (08.09) No.1537 (h#2 ; Isardam) Chris Feather (England). “Dedicated to Petko with the best wishes for the success of his latest publication: Anda Fairy Planet … Geoff Foster sent me a copy!”
  • (08.09) No.1536 (h#2 ; Neutral Bishop/Rook/Knight ; Take & Make) Julia Vysotska (Latvia) & Daniel Papack (Germany). The result of “work-shop” created by No.1530.
  • (05.09) No.1535 (ser-#4 ; Neutral Pawn ; Take & Make) Sébastien Luce (France). “…the four corners theme of the neutral Bishop of promotion…”
  • (05.09) No.1534 (h#2 ; LEO, PAO, VAO) Ladislav Salai jr., Emil Klemanič (Slovakia) & Michal Dragoun  (Czehia).  “Functions cycle of three leos…”

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals August 2020

JF Original Problems | August, 2020

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list

  • (29.08) No.1533 (hs#11.5) Torsten Linß (Germany). “I hope solvers (if there are any) and readers will enjoy the problem.”
  • (29.08) No.1532 (PG 16 ; Black Functionary, Black Passes if Stuck) David Antonini & Nicolas Dupont (France). Warm welcome to David Antonini – first time in JF Problems!
  • (19.08) No.1531 (h#2 ; Take & Make) Chris Feather (England). “The elements are familiar but I hope that there is no specific anticipation. If there is, I am sure that knowledgeable readers will let you (or me) know!”
  • (18.08) No.1530 (h#1.5 ; Neutral Bishop, Neutral Nightrider ; Take & Make) Julia Vysotska (Latvia). Maybe this toy is even solvable? 😉 No clever idea for the extension.
  • (17.08) No.1529 (#2 ; Breton Adverse) Hubert Gockel (Germany). “Two black Bishop stars, focal play, black correction, black King in mirror position.”
  • (11.08) No.1525.1 (h=10.5) Anatoly Stepochkin & Sergey Shumeiko (Russia). An improvement of No.1525 (Anatoly Stepochkin).
  • (05.08) No.1528 (hs#3.5* ; Grasshopper, Lion ; Take & Make) Borislav Gadjanski (Serbia). “Orthogonal-diagonal echo mates with zugzwang in the last move. Ten (5+5) T&M moves.”

All previously published problems & competitions you can find on the page  JF Tournaments or using search options in JF Problems

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals July 2020

Original Problems | July, 2020

The judge of JF-2020/II: Hans Gruber.
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

Coming soon: nobody in the waiting list

  • (30.07) No.1527 (PG 10.5 ; Transmission Menace) Kostas Prentos (USA). “The use of Transmission Menace was inspired by Eric Huber’s No.1521…”
  • (30.07) No.1526 (ser-h#15 ; Neutral pieces) Michael Grushko (Israel).

All previously published problems & competitions you can find on the page  JF Tournaments or using search options in Original Problems

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


Originals July 2020


Original Problems

July, 2020

The judge of JF-2020/II: Hans Gruber
The judge of Retro & PG problems 2019-2020: Vlaicu Crișan

  • (26.07) No.1525 (h=8.5) Anatoly Stepochkin (Russia).
  • (22.07) No.1524 (-34 & #1 Proca ; Anti-Circe) Dmitrij Baibikov (Israel). Read some more of introductory words by author in the publication “…I have long wanted to return the record to JF. I hope that my task is correct and that I succeeded.”
  • (20.07) No.1523 (h#3.5* ; Castling Chess) Borisas Gelpernas (Lithuania).
  • (20.07) No.1522 (#2 ; VAO, PAO, NAO) Franz Pachl (Germany).

All previously published problems & competitions you can find on the page  JF Tournaments or using search options in Original Problems

Animated diagrams use Py2Web by Dmitri Turevski and WinChloe‘s graphics, Christian Poisson


JF changes to English version

Some important information: This month I’m going to transform JF from bilingual to only English version.
I’m sorry for any inconvenience it might create! But have to tell it was always double work for me making each page twice, although many things remained not translated on Russian pages; plus some functions don’t work well on bilingual sites.  → read more..