To celebrate the 25th anniversary of ChessBase in June last year the Israeli
IM and study composer Yochanan Afek, together with ARVES, the Dutch-Flemish
Association for Endgame Study, announced
a commemorative composing tourney for endgame studies (win or draw). There
were no restrictions on the type of study. ChessBase offered some of their products
as prizes. First prize: A copy of the famous Fritz program signed by over-the-board
world champions. Special prizes were reserved for the best composing debutants.
GM Dr. John Nunn (Great Britain), three-times world champion for solving, was
appointed tourney judge, while the tourney director was Luc Palmans (Belgium),
chairman of ARVES (an international
association promoting the art of the endgame study).
The ChessBase-25 Study Tourney
Award by John Nunn
A total of 73 eligible entries were received for this tourney, an excellent
response from composers. As might be expected with so many entries, the level
was variable, but the average standard was high with many interesting and original
studies. The studies were given to me without the composers’ names and
in the end I included 22 in the award.

Tournament judge Dr John Nunn
In part four I will present the next set of prize winners, once
again as diagrams. At the bottom of the page you will find the solutions, replayable
on the ChessBase JavaScript board. I urge you to try and solve the studies yourself
with the help of the notes provided before you look at the solutions.
Becker,Richard, CB 25, 8th HM, 2011
White to play and win
In material terms this is somewhat similar to the 2nd Prize, but this study
is markedly inferior: there are no thematic tries, and after the first move
the bishop stands immobile for the remainder of the solution. Nevertheless,
the systematic manoeuvres by the white queen are interesting, first of all to
remove the d5-pawn with gain of tempo, and then to put Black in zugzwang after
16 Qb4!
Rusz,Arpad, CB 25, 9th HM, 2011
White to play and win
This study involves a tablebase-derived reciprocal zugzwang with added introductory
play. Some features operate in the study’s favour: the initial position
is extremely natural, the reciprocal zugzwang is truly amazing (even if hard
to understand) and there is the almost obligatory thematic try. However, the
question arises as to why Black should commit suicide by taking the c4-pawn
(as given in the composer’s main line) when by playing 11...Qd4+ he could
postpone defeat by 64 moves and present White with a technical task which, dare
I say it, would probably defeat Vishy Anand (sorry, Vishy). Naturally composers
choose attractive finishes as their main lines, but normally it’s a case
of (for example) allowing mate or facing a possibly lengthy but nevertheless
clear-cut loss on material. That isn’t the case here and in my view it
lessens the impact of the study. In this respect it compares unfavourably with
the 5th Honourable Mention, in which the zugzwang is far more amenable to human
understanding.
The study appears to be a correction of the following unsound study:
Rusz, EBUR 2003

White to play and win
Solution: 1 Qe6+ Kh4 2 Qxc6 (2 Qf6+ also wins, amongst other moves) 2...Qd3
3 Qb5 Kg4 4 Qc5 Kf4 5 Qe7 Qxc4 6 Qh4+.
Ulrichsen,Jarl, CB 25, 1st Comm, 2011
White to play and win
This is of course already a tablebase position, but it makes a simple but neat
study likely to appeal to players. It’s paradoxical that White must block
the g6-square with his bishop, when it appears that he will need precisely this
square to bring his king to the queenside.
Minski,Martin, CB 25, 2nd Comm, 2011
White to play and win
Thematic try studies based on the ‘which rook to move’ idea have
been seen quite a bit recently, and this one is enlivened by Black attempting
stalemate by self-incarceration of the queen and an underpromotion by Black.
Nevertheless, the play simply isn’t interesting enough considering the
heavy and unnatural initial position, and in the end the motivation for the
choice of initial rook move turns out to be rather mundane.
Solutions
Note that you can select the individual studies in the dropdown menu. Click
on the notation will cause the board to display the position. You can also download
the studies as a PGN file to replay and analyse with Fritz.

Replay and check the LiveBook here |
Please, wait...
1.Ba4! 1.Qe4? d5 1.Qb5? Kd8! 2.Ba4 Ke7 1...d5 1...Kc7 2.Qc4+ Kd8 3.Qe4! f5 4.Qb7 2.Qe5! 2.Qg4+? f5 2.Qc2+? Kd8 3.Qc6 Qe7 2...Qd8 2...Qh6+ 3.Ka7 3.Qc3+ Qc7 4.Qh8+ Qd8 5.Qe5! Qc7 5...d4 6.Qf5+ 5...f6 6.Qe6+ Kb8 7.Bd7 6.Qe8+ Qd8 7.Qc6+ Qc7 8.Qa8+ Qb8 9.Qxd5! Qc7 10.Qa8+ Qb8 11.Qc6+ Qc7 12.Qe8+ Qd8 13.Qe5! Qc7 13...Qd3+ 14.Ka7 13...Qd2 14.Qc5+ Kb8 14...Kd8 15.Kb7 15.Qb6+ Kc8 16.Ka7 14.Qh8+ Qd8 15.Qc3+ Qc7 16.Qb4! f6 17.Qf8+ 17.Qg4+? Kb8 18.Qb4+ Kc8 17...Qd8 18.Qc5+ Qc7 19.Qf5+ Kd8 19...Kb8 20.Qb5+ Kc8 21.Qe8+ Qd8 22.Qe6+ 20.Qd3+ Kc8 20...Ke7 21.Qh7+ Kd8 22.Qh8+ 21.Qh3+ Kd8 21...Kb8 22.Qb3+ Kc8 23.Qg8+ Qd8 24.Qe6+ 22.Qh8+ Ke7 23.Qg7+ Kd6 24.Qg3+ 1–0
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Becker,R | - | + | - | 1–0 | 2011 | | CB 25 AT 045 - 8th HM | |
Rusz,A | - | + | - | 1–0 | 2011 | | CB 25 AT 040 - 9th HM | |
Rusz=A | - | (+4000.11b2h3) | - | 1–0 | 2003 | | EBUR#060 @2 | |
Ulrichsen,J | - | + | - | 1–0 | 2011 | | CB 25 AT 072 - 1st Comm | |
Minski,M | - | + | - | 1–0 | 2011 | | CB 25 AT 003 - 2nd Comm | |
Please, wait...
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If you enjoyed these endgame studies, you may be interested to try
the puzzles in John Nunn's book Endgame
Challenge, which features 250 of the world's greatest endgame
studies.
GM John Nunn is the Chess Director of Gambit Publications, a specialist
chess publishing company, owned and run exclusively by chess masters and
grandmasters. Gambit is committed to producing high-quality, instructive
books suitable for all levels of chess player and currently have over
200 titles in print. Visit the Gambit
website for details of current and forthcoming books.

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Links
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ChessBase 25 Composing Tourney
08.06.2011 – Special occasions in the chess
world are often accompanied by a chess composition tourney. To celebrate
the 25th anniversary of ChessBase, the Israeli study composer IM Yochanan
Afek, together with the Dutch-Flemish Association for Endgame Study, ARVES,
has announced a commemorative tourney. All are invited to test their creative
skills.
|
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ChessBase 25 Composing Tourney Awards – Part one
30.04.2012 – Special occasions in the chess
world are often celebrated by chess problemists with a composition tourney.
To celebrate the 25th anniversary of ChessBase we staged a commemorative
tourney. A total of 73 eligible entries were received for this tourney,
an excellent response. The tourney judge Dr John Nunn selected 22 prize
winners and commendations. Today
we bring you the top four. |
 |
ChessBase 25 Composing Tourney Awards – Part two
30.04.2012 – This tourney attracted wide
participation – 73 entries, from which the tourney judge GM John Nunn
selected 22 prize winners and commendations. In a second instalment
of new studies, selected by the tourney judge, Dr Nunn, in his wonderful
explanatory style, presents some dramatic themes, and also looks at
two predecessors to one of the prize
winning entries. |
 |
ChessBase 25 Composing Tourney Awards – Part three
30.04.2012 – We continue our tour of chess
studies, guided by GM John Nunn, who explains the finer points with great
care. The studies were all submitted as part of a composing tourney to
celebrate the 25th anniversary of ChessBase last June and came from all
over the world. In today's installment we encounter studies from Ukraine,
Germany, Austria, Russia and Holland. |
Anniversary articles for 25 years of ChessBase
 |
ChessBase is 25 – everything 25% off in our shop
19.05.2011 – It is difficult to determine the
exact date when ChessBase was born. Was it when a science journalist and
a future World Champion discussed computer databases? Or when a very talented
programmer started to actually write one? We think it was when the two
showed the prototype to the World Champion and decided, at his urging,
to commercialise the product. That
was May 19, 1986. |
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Greetings from Pál Benkö for 25 years of ChessBase
20.05.2011 – "Congratulations to ChessBase
on your 25th
anniversary! Your news page is the the first thing I look at every
day when I go on the Internet. You do such wonderful work. Keep up your
great service for the whole chess world." Heartening words from legendary
great chess player, theorist, author and problem composer – who in addition
sent six anniversary
puzzles for our readers. |
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ChessBase is 25: Birthday greetings from Anand
01.06.2011 – Our company was born on May 19,
1986, twenty-five years ago, and on May 19, 2011 one of our most loyal
friends, World Champion Viswanathan Anand, logged into the Playchess server
and sent us a ten-minute birthday greeting. It was quite moving to be
reminded of the early days by one who was present at the time – and who
has remained a close friend ever since. Must-watch
historical video. |
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Kasparov on 25 Years of ChessBase
08.06.2011 – He was there at the start – actually
before that, when a chess database was just an idea in the minds of a
few enthusiasts. And when he saw the first prototype Garry Kasparov immediately
pushed for its completion. For the 25th anniversary of ChessBase he sent
us a very moving statement, recorded in his study in Moscow, describing
the birth of what he calls the
ChessBase generation. |