Creation of hs#s for WCCT in cooperation


Creation of hs#s for WCCT in cooperation


Juraj Lörinc


WCCT is an interesting event. In many countries composers gather and cooperate tirelessly over many schemes, leading often to excellent works showing the required themes. In Slovakia each section has its own leader who is responsible for coordination of efforts.

During the preparation of Slovak problems for the 9th WCCT I was leading the fairy section. You probably know that the section was dedicated to hs# with Chinese pieces and critical moves followed by activation by arrival on the intersecting square. Early in the process I have found an interesting scheme developed later by me and Ľudovít Lehen. I have soon felt that while the scheme was a nice one, anything resulting from it could hardly compete in the WCCT due to limited use of thematic critical moves in the scheme. How have I come to it?

As a preparation for WCCT composing I have studied many hs# with Chinese pieces (thanks to their presence in the big WinChloe database). This is often my first step in composing for thematical tourneys: to see what was already done and think about uncovered areas, taking into account tricks already used by other authors. In the first part of the article are thus shown some problems providing the inspiration and also other Slovak works during the same period as all originals from the second part.

I. Inspiration and other ways followed


No. 1. Petko A. Petkov
PAT a MAT 2006
3rd Prizejl-hs-wcct-diag2hs#3             2 solutions           (4+10)
LEOs: h1, h8, b7, b8

1.LE1h7 Bh1 2.LE×b8 LEg2 3.LEc2+ LE×c2‡
1.LEb2 Rh8 2.LE×b7 LEg8 3.LEa2+ LE×a2‡


The hs# No. 1 was even published in our own magazine Pat a Mat and shows very attractive (at least for me) corner play of two white leos and black Bristol pairs. So I wanted to try something with corners…

I had the pleasure to judge another good hs# by Petko Petkov, No. 2. I have written about it in the award:

Starting from the first black move, bLE leaves crucial diagonal a2-g8, wVA crosses the vacated square and cuts wPA line, allowing bK to enter battery line. Then wVA fires battery and allows bVA to close it along the crucial diagonal with simultaneous opening of wR and thus finishing the cage around bK. Finally wVA gives direct check on the new line and bLE is forced to close it, activating simultaneously antibattery with pinned bVA as rear piece. Also wR cannot parry the check due to the repelling. Great analogy of strategy in two phases uses the whole board that, and that is absolutely fantastic, is shown in the form of set play + solution, with the first white move changing the white pin horizontal and so everything. Perfect white economy rounds off this worthy winner.

No. 2. Petko A. Petkov
Best Problems 2006-07
1st Prizejl-hs-wcct-diag2hs#4*                                         (5+11)
LEO d5; PAO h8; VAO c4, b3

1…LEe5 2.VAg8 Kc8 3.VAh7+ VAg8 4.VAf5+ LEe6‡
1.PAh6 LEd4 2.VAe6 Ka6 3.VAh3+ VAe6 4.VAf1+ LEc4‡


It is important to realize that 3…VAg8 and 3…VAe6 are the moves thematical for the 9th WCCT – they cross intersection squares e6 and c4 respectively. These are later entered by bLE, activating bVA for checkmate.

No. 3. K. Seetharaman
StrateGems 2012jl-hs-wcct-diag2hs#3              2 solutions             (4+8)
LEOs: a4, a5, g1

1.LEg8 LEa2 2.LEa8 LE5a3 3.Sf8+ LE×a8‡
1.LEg7 LEa7 2.LEa1 LE4a6 3.Sf6+ LE×a1‡


After WCCT closing date another corner-play hs# No. 3 was published, by another active JF reader. It has two WCCT thematical moves in each solution, B1 and W2. Specific play is shown also by pair of black leos, who make critical and intersection moves in Bristol style reciprocally. This feature was shown in my WCCT entry No. 4 in a cyclical fashion.

No. 4. Juraj Lörinc & Ján Kovalič
9th WCCT 2012-2013
40-47th Placejl-hs-wcct-diag2hs#3                                          (10+9)
b) Rc7->f7; c) Rc7->f2
LEOs: a2, d5, d6, e5, g8

a) 1.LEc8 LEh5 2.LEca6 LEdg5 3.LEb6+ LE×b6‡
b) 1.LEg6 LEb8 2.LEc2 LEec7 3.LEcb3+ LE×b3‡
c) 1.LEg4 LEd3 2.LEe2 LE6d4 3.LEe1+ LE×e1‡


Here the trio of black leos cyclically changes functions: the first makes critical move, the second follows it in Bristol fashion, the third then mates. In the meantime White just moves his LEg8. It is not very deep strategy, although the solo play of leos has some merit (again, just in my view). The twinning mechanism was quite lucky find after long struggle, with perfect use of rook guarding geometry. But there are only three thematical moves, so the low placement in WCCT was not so surprising.

No. 5. Štefan Sovík & Ján Golha
9th WCCT 2012-2013
53-61th Placejl-hs-wcct-diag2hs#4             3 solutions           (7+11)
LEO h3; PAOs: a8, g5; NAO b1

1.LEd3 NAc3 2.LE×a6+ PAb5 3.Bd1+ Kd3 4.PAd8+ NAd5‡
1.LEe3 NAf3 2.LE×b6 PAc5 3.Be1 Ke3 4.PAe8+ NAe5‡
1.LEf3 NAe7 2.LE×c6 PAd5 3.Bd3+ Kf3 4.PAf8+ NAf5‡


Actually I think another Slovak entry by Štefan Sovík & Ján Golha is a beautiful hs# with perfect geometry of moves, great use of force and echo play in the form of three solutions. Note the mechanism pinning black rear antibattery piece similar to the mechanism used in the No. 2. As section leader I know how many versions it had and how much the authors managed to improve the construction over time. But again only three thematical moves and it was placed very low in the award (even with no points for Slovakia as it was the lowest placed Slovak hs#).

So the results of WCCT have confirmed my feeling, high frequency of critical moves was necessary for high placement. That is why my No. 442 of Julia’s Fairies did not aspire to be placed among Slovak entries. And No. 6 did not aspire either.

No. 6. Juraj Lörinc & Ján Kovalič
Original for JF-2014/I
jl-hs-wcct-diag2hs#3              3 solutions            (9+9)
LEO d5; PAOs: g2, h7

1.Sg5 PAg1 2.LEh1 PAh3 3.Sf3+ PA×f3‡
1.Sd6 c4 2.LEa5 PAh5 3.Sb5+ PA×b5‡
1.Sd8 b×a6 2.LEa8 PAh6 3.Sc6+ PA×c6‡


It shows some corner play by white leo, although it could be rather called edge play due to the presence of 1.Sd6 solution. The analogy of three solutions is good (although guarding of e5 is slightly altered in one solution), the number of pawns not so much. The line opening by the first black moves is a valuable thematical addition.

II. Scheme and the way it was developed


Let’s move to the scheme mentioned at the beginning.

No. 7. Juraj Lörinc
jl-hs-wcct-diag2hs#3              2 solutions            (4+5)
LEOs: a8, h8; PAOs: b1, g1

1.LEa1 Kf6 2.~ Ke5 3.Rd4+ LE×a1‡
1.LEh1 Kh5 2.~ Kh4 3.Bh3+ LE×h1‡


The scheme works as follows. White leo makes corner-to-corner move along line later used by bK for two moves along. White then checks by antibattery (with reciprocal exchange of functions wR-wB) so that Black has to checkmate by corner-to-corner capture by bLE. Besides line play I liked dynamic nature of bK nets that could have been extended to wK nets.

ludo-portraitWe have with Ľudo worked on the scheme in spite of the feeling we would not enter WCCT with it. So we have produced whole series of similar hs#. The main aim of this exercise has changed over time – from composing problem for WCCT we have moved to producing something specifically for an article. We wanted to publish it only after results of WCCT. And now you are in the middle of reading it. Originally I was thinking about placing it in feenschach, but now, with appearance of JF website and the strongly hs#-oriented group of active visitors I have reconsidered. No doubt further improvements of our efforts can be done.

No. 8. Juraj Lörinc & Ľudovít Lehen
jl-hs-wcct-diag2hs#3,5           2 solutions            (6+7)
LEOs: a8, h8; PAOs: c1, h1; VAO a7

1…d3 2.LEa1 Kf6 3.R×d3 Ke5 4.Rd4+ LE×a1‡
1…PAg1 2.LEh1 Kh5 3.Rf3 Kh4 4.Bh3+ LE×h1‡


Let’s start with diagram No. 8. It was our first correct version, pointing to some properties of the scheme:

  • one black pao is doing nothing in the solution (reciprocally);
  • checking hurdle Rd4 has to be guarded, while Bh3 needn’t be;
  • in this form Se2 guards d4, but does nothing in the other solution;
  • PAc1/Pg1 prevent white defences to d1/f1.
No. 9. Juraj Lörinc & Ľudovít Lehen
jl-hs-wcct-diag2hs#3,5             b) -Pc2                (7+4)
LEOs: a8, h8
PAOs: c1, g1

a) 1…PAg2 2.LEa1 Kf6 3.Qf2+ Ke5 4.Rd4+ LE×a1‡
b) 1…PAc2 2.LEh1 Kh5 3.Rf3 Kh4 4.Bh3+ LE×h1‡


This version is surely an improvement in spite of a twinning form. It improves some defects of the initial version:

  • black paos now reciprocally exchange functions;
  • mates are in fact models;
  • all pieces play actively in both solutions,

but still – the strategy of some moves is different:

  • 3.Qf2+ provides hurdle for PA, while 3.Rf3 provides hurdle for checking leo;
  • Qf2 guards already guarded squares besides d4;
  • d1 cannot be entered by Rd4, while f1 by Bh3 and Rf3.
No. 10. Ľudovít Lehen & Juraj Lörinc
jl-hs-wcct-diag2hs#3,5         b) Rg1->c1           (6+10)
LEOs: a8, h8;
PAOs: c7, f8, g1; VAO h6

a) 1…VAg5 2.LEh1 Kh5 3.PAc3 Kh4 4.Bh3+ LE×h1‡
b) 1…e4 2.LEa1 Kf6 3.PAc4 Ke5 4.PAd4+ LE×a1‡


Ľudo, as usually, was not satisfied with the previous version and continued search for perfect position. He removed my queen and even one of two black paos on the first rank. First black moves now have similar content – both line opening for wLE and blocking. Well, 1…e4 unblocks square for bK while 1…VAg5 not. Also the play of wPA-wB pair is not well balanced. Is it possible to continue in this direction?

No. 11. Ľudovít Lehen & Juraj Lörinc
jl-hs-wcct-diag2hs#3,5           2 solutions            (9+4)
LEO h8; PAO b7

1…Bg4 2.LEh1 Kh5 3.PAb3 Kh4 4.PAh3+ Q×h1‡
1…f5 2.LEa1 Kf6 3.PAd7 Ke5 4.PAd4+ Q×a1‡


This version differs more from the original concept. Black leo is replaced by bQ, pair of wB+wR by single white pao. Majority of potential bK flights are guarded statically by white knights. On the positive side there is unified strategy of all moves, including unblocking + line opening + blocking of the first black moves. Checkmates are not model and PAb7 opens bQ to h1. Unfortunately wPA cannot be on b8 due to cooks.

No. 12. Ľudovít Lehen & Juraj Lörinc
Original for JF-2014/I
jl-hs-wcct-diag2hs#3,5           2 solutions            (9+5)
LEO h8; PAOs: b7, e2

1…Bg4 2.LEh1 Kh5 3.PAb3 Kh4 4.PAh3+ Q×h1‡
1…f5 2.LEa1 Kf6 3.PAd8 Ke5 4.PAd4+ Q×a1‡


Addition of static bPA removes the mentioned weaknesses. Personally I would use this version of two.

No. 13. Juraj Lörinc & Ľudovít Lehen
Original for JF-2014/I
jl-hs-wcct-diag2hs#3,5           b) Pc2->c6           (7+4)
LEOs: a8, h8; PAOs: c1, g1

a) 1…PAg2 2.LEa1 Kf6 3.Bf2 Ke5 4.Rd4+ LE×a1‡ (5.Rd1?)
b) 1…PAc2 2.LEh1 Kh5 3.Bd2 Kh4 4.Bh3+ LE×h1‡ (5.Bf1?)


Now there is grand finale. Trying many possibilities I have suddenly realized it is possible to cure deficiencies of No. 9 elegantly by changing the twinning mechanism (Pc2 is not removed, but rathe rmoved to c6) and replacing wQ by wB. This version is almost flawless with model cages around both kings.

No. 14. Ľudovít Lehen & Juraj Lörinc
Original for JF-2014/I
jl-hs-wcct-diag2hs#4            b) Pc2->c6              (8+5)
LEOs: a8, c7; PAOs: c1, g1

a) 1.LEg7 PAg2 2.LEa1 Kf6 3.Bf2 Ke5 4.Rd4+ LE×a1‡ (5.Rd1??)
b) 1.LEh7 PAc2 2.LEh1 Kh5 3.Bd2 Kh4 4.Bh3+ LE×h1‡ (5.Bf1??)


But Ľudo then did something unexpected. Without knowing No. 3 he suggested similar introductory moves by wLE. He has actually removed one of original virtues (corner-to-corner moves by wLE) and used two pawns more, but line play along line non-existent in the diagram position might be worth it.

So what do you think? Can you find better expression of our schemes? Have we overlooked anything?

In any case, it was a pleasure for me to work with Ľudo over the scheme, especially now, when is no longer very active.

/Bratislava, 13.02.2014/

6 Responses to Creation of hs#s for WCCT in cooperation

  1. Petko A.Petkovpetko petkov says:

    Juraj`s article is very interesting and instructive, especially for authors with less experience. The biggest mistake of many young composers is that they send for publication their first “ready problem” (C+) that is produced by one scheme.
    But Lorinc`s article shows the other, right approach of the experienced author – a scheme is being developed for a long time, in many similar variations with a goal to find an optimal contents and form. A very positive point here is the collective work. This method is demonstrated excellently in the second part of the article: II. Scheme and the way it was developed.
    I use a similar method of composing (I could write another article about my method), although it is rather difficult for me to find a permanent co-authors.
    Welcoming again Juraj`s article, I want to point some interesting important questions, which I suppose will later be posted from the author Lorinc and probably from the editor Julia. What will be the ‘fate’ of published originals in the article? Which of these originals would take part in the tournament of the site? Of course, here the most important is the opinion of the author – it is possible, of course, that the originals are out of competition. However, I think that such information is necessary, because it will help also to the judge of the competition.
    Finally – an important technical question – I think the originals should be written like this:

    No. 8. Juraj Lörinc & Ľudovít Lehen
    Julias Fairies ( 13.02.2014)

    This form is better because here is a clear source of the publication and its date – important components of copyright!

    • JuliaJulia says:

      I fully agree with Petko about instructiveness of the article! It’s really very useful to be shown how to create a good problem, how many iterations should be made to find the best version, and the “pre-composing” part with studying the existing works on the same theme..

      And I also enjoyed to see how the joint problems are created by two co-authors, when a new versions have some additional motives or changes added in turns by one of co-authors, so each version has its own leader (or main author).

      About the questions opened by Mr.Petkov:
      1) It was the right guess, that my the next step would be to clear up the “fate” of originals in the article! Before writing to Juraj I was going to wait for some possible new versions from the readers, but I can write it now as well – I believe any original inside any article published on JF can participate in the current informal tournament. In case of several versions of the one scheme, I believe that author can choose the best to be included in the tournament. If there’re doubts about either a problem can be considered as independent original, we can discuss it with a judge as well, I believe. So, by the end of April (the last month of current informal tournament JF-2014/I) I’ll be waiting Juraj’s decision about participants in the tournament.
      2) About the presentation of originals in the articles – for now I don’t agree with Petko, that a place of publication (Julias Fairies in this particular case) should be mentioned. My reasons are: the place of publication is clear, as it is the same as for the whole article; the date of publication is the article’s publication date, which is mentioned; when the author writes his article, he can’t be always sure about the place and date of publication, so it looks like this info has to be added by the editor (but is it correct?); and at the end, for this concrete case – how to show the difference for the problems already published on JF (in Original problems section) and shown in the article and those who first appear in the article, if the both will have a place of publication like “Julias Fairies” ?

      Well, I understand the question of copyright and date of publication of any problem is important. I don’t know how exactly problems are added to the databases. But I believe, everything depends on how carefully it is done.
      Of course, I’d like to make everything in the most convenient way for everybody, I’m just not sure how to do it…
      I’d be grateful for your opinion and advises!

      In conclusion – back to the article’s content! – thanks to Juraj!

      • Thanks to both Petko and Julia. My opinion is as follows.


        Participation of originals in the informal tourney… actually I was thinking about participation and seeing judge’s views too when selecting the place of article publication. I wanted to write it in time for 2013/III tourney, but I was unable to do that. But fortunately Vlaicu has about the same expertise in the area of hs# as Eric, so it is still ok.

        Of course, I do not want all of originals from article to be competing, some are clearly worse than others. So I would like to see competing Nos. 6, 12, 13 and 14.


        As regards publication data I agree with Julia – I have actually given my agreement to the current form of the article after some cooperation. Source is Julia’s Fairies, publication date is the same as that of article.

        But, and here I tend to agree with Petko, giving the precise information additionally over the diagram should not hurt. It is not necessary, but if there is a place and typographically it is ok – why not?

        There needn’t be any specific difference between originals from the dedicated column and originals from the article. E.g. in Pat a Mat we number all positions incrementally and if the full exact source of some original is “413 Pat a Mat 67, IX 2008”, it is not possible to say whether it was in column or article.

        (But e.g. Phenix did it differently, articles positions had prefixes to numbers.)

  2. Seetharamanseetharaman says:

    Thanks to Juraj for this very interesting article. It is evident that Slovakia has the enviable luxury of having a team and a leader for each (or most) of the WCCT sections !! With just four active composers each of us had to handle more than one section! Hope it will be better for the 10th WCCT !

    It will be instructive for many of us to see the amount of work put in each scheme and the number of possible versions.

    While Juraj is generally correct about the number of thematic moves, one can see that the results of helpmate section were different with the highest placed problems having less than the maximum possible three !

    Personally I liked No.4 (with interesting bristols) and I think it deserved to finish higher, but then with five judging countries, the popular view is obviously different!

    Thanks again!

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