Chess problem 79 / Schachaufgabe 79

in The Chess Community4 years ago (edited)

English


Hello chess fans, this time you had to wait a while until the three conditions to create a new chess puzzle for you - to have enough time, energy and creativity at the same time - were fulfilled. Real life exacts it's toll, and believe me, designing such a chess problem isn't an easy job:

  • First of all, an idea, a motive has to be found, which often just doesn't happen when the necessary calmness and relaxation doesn't ensue, and the brain has to chew on other things.

  • Once an idea is developed, one has to come up with a position where it can be applied and think about the concrete variants leading to checkmate. Then it is necessary to check ...

  • ... a) whether a mate can really be forced against every conceivable defence, and ...

  • ... b) whether there are side solutions that might lead to victory just as quickly, which would devalue the problem.

It took some time, but I guess the nut that is now on the table is not easy to crack. Black is supposed to checkmate against the best opponent's defence in 12 moves at the latest! Have fun! :)

Deutsch


Hallo Schachfans, diesmal musstest ihr eine Weile warten, bis ich genug Zeit, Energie und Kreativität angesammelt hatte, um ein neues Schachrätsel für euch zu entwerfen. Das reale Leben hinterlässt seine Spuren, und glaubt mir, so ein Schachproblem zu entwerfen, ist kein einfacher Job:

  • Zunächst einmal muss eine Idee, ein Motiv gefunden werden, was oft einfach nicht geschieht, wenn sich sich die nötige Ruhe und entspanntheit nicht einstellen wollen, und das Gehirn an anderen Dingen zu kauen hat.

  • Hat man eine Idee entwickelt, muss man sich eine stellung ausdenken, wo sie zur Geltung kommt, und sich um die konkreten, zum Schachmatt führenden Varianten ausdenken. Dabei gilt es dann ...

  • ... a) zu überprüfen, ob wirklich gegen jede erdenkliche Verteidigung auch tatsächlich ein Matt zu erzwingen ist, und ...

  • ... b) ob es keine Nebenlösungen gibt, die möglicherweise genauso schnell zum Sieg führen, was das Problem entwerten würde.

Es hat zwar etwas gedauert, aber die nun vorliegende Nuss dürfte nicht ganz einfach zu knacken sein. Schwarz soll bei bester gegnerischer Verteidigung in spätestens 12 Zügen schachmatt setzen! Viel Spaß dabei! :)


Black to checkmate in 12 moves at the latest:

Schwarz setzt in spätestens 12 Zügen schachmatt:

FEN: 8/8/B1P5/4ppp1/2Pnk1q1/4p1P1/1r4PP/4B1RK b - - 0 1


Sort:  
  1. ... Dh3, 2. gxh3 Sf3 (droht 3...Th2 Matt), 3. Tg2 Tb1, 4. Te2 Sxe1, 5. Txe1 Txe1, 6. Kg2 Tc1, 7.c5 Tc2+, 8. Kg1 Kf3, 9. Lf1 Tc1, 10. h4 e2, 11. h3 exf1D+, 12. Kh2 Dg1/Dh1/Df2/De2/Dg2/Tc2 Matt.
 4 years ago  

Ja, 1. ... Dh3! ist der gesuchte Zug.
Es gibt dann viele verschiedene Verteidigungsversuche, und - wie ich finde - teilweise sehr schöne Varianten, auf die ich noch eingehen werde, sobald ich Zeit finde, eine 'Musterlösung' zu posten.

If you guys can speak English, it would be great if you could keep the talk in English so that more people can really join the talk :D

On the other hand, I glanced at ...Qh3 but I was more focused on ...Qh5 and ...Nf3 right away. What I can tell it's that black is winning by almost any means here, lol. The solution with Qh3 looks somewhat computer-like though. Nice challenge!

 4 years ago (edited) 

Don't worry, I will post the complete solution in English as soon as I find enough time.
There are still some beautiful variations waiting for you. :)

Additional note: even if I use English as default language for commenting in this chess community, HIVE (and also STEEM) are an international communities where in general I accept when people are using their own mother tongue (whereby of course in case they want me to be involved in their discussions they have to choose any language which I understand).
By the way, for this post I used the #deutsch tag which means to comment in German is alright.

Tambien hablo un poco de Español, pero tengo que practicar mas. :)

I'm still trying to crack this down. I didn't know you are a chess composer!

 4 years ago  

This is already the 79th chess riddle I posted on STEEM/HIVE.
Most of these positions are self-created artificial chess problems, a few are also taken from my own chess games.

In case nobody finds it, I will post the solution in a few days.

Puhh harte Nummer, da hab ich keine Chance...

I have spent some time so far working on this puzzle but I haven’t given up yet. :)

Hallo @jaki01 schwarz macht den ersten Zug?

 4 years ago  

Ja, Schwarz soll matt setzen und zieht folglich zuerst.

Awesome! a bit tough though, but that's the challenge.

thank you for this informations and Congratulations for winning a championship Hivechess Tournament Season 1

Why Your post has almost 400+ and 46 dollars if similar posts on the same communtiy by @eniolw get 20 upvotes and less than 1 dollar?

Hard puzzle.

 4 years ago (edited) 

First of all, unfortunately, most people don't read what they upvote. They automatically upvote posts from people they know or which are popular to optimize their curation reward.
They already know that my post generate quite some rewards if they upvote as early as possible.
I am against the small curation window!

However, in addition, in my opinion there is a big difference between my post and the puzzles of @eniol, which (partly) justifies my higher rewards: my chess problems are self-created which means I have to invest hours in a post like this. @eniol takes positions from the internet or chess books ... thus he can post several times per week (actually every day).

Thanks for reply.

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 4 years ago  

Ehm, I thought on HIVE there were some chess players around ... is this riddle too hard for you all?

yep. it's hard. :) thou black first move should be
1 ... Nc6

 4 years ago  

No, it's no 1. ... Nxc6.
I will post the complete solution on Saturday or Sunday.