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MatPlus.Net Forum Competitions ISC 2013
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(1) Posted by Dejan Glisić [Sunday, Jan 27, 2013 18:52]

ISC 2013

Did anybody scored over 57 points? :D
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(2) Posted by Dejan Glisić [Sunday, Jan 27, 2013 22:05]

For now:
1. Bojan Vučković SRB GM 2634 59.00 218
2. Kari Karhunen FIN IM 2523 58.00 238
3. Jorma Paavilainen FIN GM 2520 58.00 239
4. Marko Filipović HRV IM 2569 57.00 240
5. Vladimir Podinić SRB GM 2632 54.00 236
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(3) Posted by Evgeny Victorov [Monday, Jan 28, 2013 09:49]


1. Viktorov Evgeny 44.00 238
2. Mukoseev Anatoly 43.00 240
3. Petrov Andrey 39.50 240
4. Maksimov Alexandr 39.00 240
5. Bylinkina Anna (w) 28.00 240
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(4) Posted by Yochanan Afek [Wednesday, Jan 30, 2013 01:33]

Hotel Zeeduin (Wijk aan Zee, The Netherlands) Jan.27 (20 participants) Arbiter: Peter Bakker

1.John Nunn (GB) 58/60
2.Piotr Murdzia (Pol) 48
3.Dolf Wissmann (Ned) 40
4.Johan De Boer (Ned) 39
5.Oleg Pervakov (Rus) 38.5
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(5) Posted by Joose Norri [Friday, Feb 22, 2013 10:57]

I was quite astonished to see the results of the ISC:

The study nr.10 has a dual on the eigth move, instead of the composer's 8.Kd6, 8.Kb6 wins as well. But the scoring was not changed?! I would have thought everyone getting as far as 7.Rf5 should get 5 points. I agree it's a pity to lose the fine black move 7...Rf2, but it cannot be helped. I don't think 8.Kb6/d6 can be classsified as a 'transposition dual' or some such.
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(6) Posted by Ian Watson [Sunday, Feb 24, 2013 00:42]

What about a solver who noticed that there was a dual and so considered this could not be the solution line? Such a solver would instead write 7...Kg2 8 Rg5+ and 9 Rg1 mate, which is both unique and gives a pleasing finale to the study. I believe this is what John Nunn did. So perhaps the only solver who fully understood the study isn’t given full marks! Weird. I think Nunn’s line is likely to appear as the correct solution of this study in future editions of endgame databases.
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(7) Posted by Joose Norri [Sunday, Feb 24, 2013 07:44]

Not weird at all, happens all the time. That's the thing with the studies, the lines that are interesting are not necessarily the best ones in the solving sense, even if they're unique. Abolish the studies! Now I don't know whether Nunn 'understood' this particular position better than others, it's still a pretty simply tactical point, but the question should not be allowed to arise. Now, would I like to put together a file of say 400 good correct one-line studies, that give Piotr and John a headache and still are not completely without bounds for some lesser of us?
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(8) Posted by Joost de Heer [Monday, Feb 25, 2013 17:00]

A few years ago in the Dutch solving championship, several people didn't write a 'mate in 1' line because they considered this to be an inferior defense by black. They didn't receive any points for the line they did write, and lost points for not writing the mate-line, because the judge (Ward Stoffelen) thought that the mating line was the whole point of the study.
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MatPlus.Net Forum Competitions ISC 2013