Originals January 2021


JF Original Problems | January 2021

The judge of JF-2021-I: not appointed yet.
The judge of Retro & PG problems 2021-2022: not appointed yet

  • (24.01) No.1524-2 (-34 & #1 Proca ; Anti-Circe) Dmitrij Baibikov (Israel). Correction of No.1524 (JF-R2019-20). No.1524 & 1524.1 are withheld from the tournament JF-R2019-20.
  • (24.01) No.1578.1 (#3 ; Anti-Circe) Daniel Papack & Sven Trommler (Germany). The improvement with thematical tries for No.1578, Dedicated to Franz Pachl 70th birthday.
  • (22.01) No.1580 (h#4 ; Transmuted Kings) Ľuboš Kekely (Slovakia).
  • (09.01) No.1579 (h#2 ; Madrasi) Manfred Nieroba & Daniel Papack (Germany). Warm welcome to Manfred!
  • (08.01) No.1578 (#3 ; Anti-Circe) Sven Trommler (Germany). Dedicated to Franz Pachl 70th birthday.

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


Originals December 2020

JF Original Problems | December, 2020

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

Merry Christmas and a Happy New Year 2021 !
My very best wishes to everybody!

(19.12.) Julia’s illness is over! ⇒

  • (31.12) No.1577 (#2 ; PAO, VAO, NAO, RAO, Chinese Camelrider) Jean-Marc Loustau (France). “Double complete Tertiary Threat Correction (TTC), with successive corrections of thematic double threats” (Author) … and much more!
  • (31.12) No.1576 (#3 ; Mars Circe) Armin Geister & Daniel Papack (Germany). “A problem for the New Year’s Eve punch: The same solution – or not…?!” (Authors)
  • (30.12) No.1575 (hs#3) János Csák & Gábor Tar (Hungary).
  • (29.12) No.1551.2 (ser-s#22 ; Circe Rex Inclusiv) Dirk Borst (Netherlands). Correction for No.1551 & 1551.1. “This time I hope to have found a real correction (attached). Both the first and the second cook are impossible in this position. But who knows what Arno will find next!?” (Author)
  • (26.12) No.1574 (hs#3.5) Vitaly Medintsev & Aleksey Oganesjan (Russia). “We have managed to implement probably a NEW idea which might be called ‘Promoted Anticipatory Grimshaw’.” (Author)
  • (26.12) No.1573 (h#3 ; Take & Make, Transmuted Kings) Sergej Smotrov (Kazakhstan). “Echo mates” (Author)
  • (26.12) No.1572 (h#3.5 ; Invisibles) René J. Millour (France). “In this Wenigsteiner using Invisibles, mating by castling occurs twice in a very strange way!” (Author)
  • (26.12) No.1552.1 (h#2 ; Take & Make) Jacques Rotenberg & Pierre Tritten (Israel / France). An improved version to No.1552.
  • (26.12) No.1524.1 (-33 & #1 Proca ; Anti-Circe) Dmitrij Baibikov (Israel). Correction to No.1524 after comment by Bojan Bašić.
  • (26.12) No.1571 (hs#10) Torsten Linß (Germany). “Critical moves by three pieces with return to their original squares.” (Author)
  • (26.12) No.1570 (hs#8.5 ; Neutral pieces ; Alphabetic Chess, PWC, Einstein Chess, Republican Chess) Michael Grushko (Israel).
  • (25.12) No.1569 (h#2.5 ; Neutral pieces ; Anti-Circe) Manfred Rittirsch (Germany). “Soul Sacrifice”
  • (25.12) No.1568 (h#2 ; Brunner Chess, Back-to-Back) Karol Mlynka (Slovakia).
  • (25.12) No.1567 (hs#4 ; Anti-Andernach, Mars Circe) Igor Kochulov (Russia). Enjoy the order of promotions!
  • (25.12) No.1566 (hs#3.5 ; LEO, NAO) Franz Pachl (Germany).
  • (25.12) No.1565 (h#2 ; Breton Adverse) Thomas Maeder (Switzerland). Glad to see Thomas on JF again, after previous publication back in 2015, No.897.

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


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: nobody in the waiting list…

  • (30.11) No.1564 (hs#4) János Csák (Hungary) & Aleksey Oganesjan (Russia). Attractive sacrifices lead to ODT “model checks” and model mates.
  • (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 (Czech Republic). 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