Quartz 48 is online

Quartz 48, November 2019, is online at:

http://quartz.chessproblems.ca/pdf/48/Quartz48.pdf

By Paul Rãican:
The contest has one section: 1. Proof games with #color condition.
It is admitted, but not necessary, to add at most one other condition (but not fairy pieces). The tourney is informal. Send problems to the judge, until the 1st February 2020. Judge: P. Rãican.

#color (or simply #c) was introduced by Andrey Frolkin and Chris Tylor in feenschach 212/2015.
Definition: After a checkmate, the colour of the mating piece(s) is changed and the game resumes, if a legal position results. In a first phase, the authors introduced this condition in helpmates, but then, they also used it in proof games.

See, e.g., the problem No.1374 from Julias fairies. The genre may be tested by Jacobi, with condition #c.

Originals 23;271119

 


Original Problems

 

23rd,28th of November, 2019

  • (27.11) No.1460 (h#2.5 ; Circe) – Manfred Rittirsch. “In memoriam Dieter Müller
  • (23.11) No.1458 (ser-h#16 ; Berolina Pawn ; Circe Equipollents) & No.1459 (ser-h#26; Skylla, Charybdis ; Circe Equipollents) – Chris Feather. “Both are serieshelpmates using Equipollent Circe; under this condition there is nothing odd about two bishops on squares of the same colour, as in the first diagram. Like the first problem, the second shows a round trip by the black king, but otherwise it is quite different.” (Author)

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-2019/II: Petko Petkov. The judge of Retro & PG problems 2019-2020: Vlaicu Crișan


Originals 171119

 


Original Problems

 

17th of November, 2019

  • (17.11) No.1457 – Vladislav Nefyodov (ser-h#5 ; Circe Parrain). Any improvements are welcome! (Author)
  • (17.11) No.1456 – Ladislav Salai jr. & Michal Dragoun (h#2 ; Lion, Rook-Lion, Bishop-Lion). Glad to see the name of so very fast judge of JF-2019/I in this joint work!

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-2019/II: Petko Petkov. The judge of Retro & PG problems 2019-2020: Vlaicu Crișan


“Vertrackte Retraktoren” by Andreas Thoma

2019

Have just received a wonderful book by Andreas Thoma “Vertrackte Retraktoren”! Though  retractors  are not my main interest, so nicely made 160 pages of the book, including 531 problem, articles and comics (by Claus Grupen)  invite to have a closer look!

You’re welcome to buy it from Andreas, just contact him by e-mail: juanthoma@t-online.de.


JF 2019/I — Award

 

Julia’s Fairies • Tournament JF 2019/I • Award

Michal Dragoun, Prague, October 2019

In Julia’s Fairies 2019/I tourney took part 43 problems. It is slightly less than in previous tournaments on Julia’s website and in my opinion, the quality of published problems was lower too. Not in general – I considered relatively high number of problems for low distinction – but I missed problems impressive at the first look.

to the Award…

Published with a gratitude to the judge, Michal Dragoun, for so exceptionally fast results! /Julia/


Originals 091119

 


Original Problems

 

9th of November, 2019

  • (09.11) No.1455 – Yevhen Trakhtman (ser-h#12). I’d like to mention that Yevhen (born 1997) took part in two recent YCCC tournaments, winning the 3rd place in Section #2 of the 4th YCCC. Let’s welcome Yevhen in fairy chess too! And I’m specially glad to do it in  Original problems of JF! 

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-2019/II: Petko Petkov. The judge of Retro & PG problems 2019-2020: Vlaicu Crișan


Originals 20;30-311019

 


Original Problems

20th; 30-31st of October, 2019

  • (31.10) No.1449.1 – Igor Kochulov (hs#2.5 ; Neutral King ; AntiCirce). An improvement to No.1449 with gratitude from author to Nikola Predrag for the advises given in the comments. 
  • (30.10) No.1454 – Geoff Foster (h#2.5 ; Point Reflection). Point Reflection condition was first announced for the 19th Japanese Sake Tourney.  Nice to see it continues to get composers’ attention!
  • (20.10) No.1453 – Hubert Gockel (#2vv ; Breton Adverse). Cyclic Pseudo-le Grand. (Author)

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-2019/II: Petko Petkov. The judge of Retro & PG problems 2019-2020: Vlaicu Crișan


WinChloe: cook in 1HM No.550.1

Reported by Michel Caillaud:

Christian Poisson just released a new version of Winchloe with improved solving for proofgames.
On his site can be found a booklet with 562 (!!) original homebase PGs and some explanations:  http://christian.poisson.free.fr/problemesis/problemesis.php 

From Readme of v.3.46 (oct.2019)
Solving of proof games (‘partie justificative’) is a little more “intelligent”. A new option in “Solving options” allows you to choose whether short solutions are sought. In this case, a solution in p moves will not be sought if there is a solution in p-n moves (n integer).
I composed some simple proof games to check the programming with several fairy conditions. They are gathered in a pdf available on Problemesis.

Winchloe is (sometimes much) slower than Jacobi, but it is interesting for conditions not implemented in Jacobi, as it is sometimes much quicker than Popeye.
Such the case is for Take&Make, and in solving the 8,0 first moves of 550(1), Winchloé finds the cook :
1.d4 Sç6 2.Bh6 g×h6(ç1=S) 3.Sd2 S×é2(Sé4) 4.Ba6 S×d2(Sb3) 5.a×b3(d2) b×a6(f1=B) 6.R×a7(Ra5) Sé5 7.Qf3 S×f3(Sb7) 8.Sé2 Bg7…

It’s already too late to change the Award by Hans Gruber


Lennart Werner 50 JT

Jubilee Tourney Lennart Werner 50 years

To celebrate the 50th birthday of FIDE Master Lennart Werner on July 16, 2019, the Swedish Chess Problem Club and the magazine Springaren announce a jubilee tourney.

Theme: h#3–n Circe with 2 or more phases (solutions, twins, set-play) (no fairy pieces or other fairy conditions)

Closing date: May 1, 2020 | Judge: Lennart Werner | Prize fund: € 100 | Examples in PDF

Address: Rolf Uppström, rolf.uppstrom@springaren.se  | Godhemsgatan 24c, SE-41468 Göteborg, Sweden


Originals 061019

 


Original Problems

6th of October, 2019

Would like to let you know that I’ve got an Award JF-2019/I from Michal Dragoun! Hope to present it the next weekend! – Julia

  • (06.10) No.1451.1 – Michael McDowell (h#2.5 ; Empress, Princess). An improvement to No.1451: “… much superior setting, with a free white pawn, ideal mates, avoids twinning, the K moves are nicely separated” (Author)

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-2019/II: Petko Petkov. The judge of Retro & PG problems 2019-2020: Vlaicu Crișan