He loses 7.5 points which he doesn't fully regain with the selfmate 5# which, as usual, he is also the only one to solve, even though it is more accessible than most of the other Petkovs.
The first 2# is quickly found by provocation. In the next, you could "pass", but the rules forbid it.
Click in the right part of the chessboard to move forward, left to move backward...
or directly on the move in the solution
The first 3#, with its 3 unpins, is elegant; I've known its author (who has never let me down) since I was 14. The other 3# appears in the album, awarded the maximum 4 points by Bo Lindgren, which is no mean feat! It shows an AB-BC-CD-DE-EA cycle (consider the 2nd and 3rd move of each variation). Its co-author is also one of our regulars, with 11 diagrams, including 7 in 2010.
3
Give key and variations
until last white move before mate.
Копнин,
Алексей Григорьевич
Шахматы в СССР, 2nd Prize 1980
white Qe1 Sd3 Pc2g6d5e4g4h3 Ba5c8 Rf7 Kh2
black Bb1 Pb2c3g7h6e6h4 Sa4 Qf6 Kf3
The study was not solved by anyone. It was not really suited to this competition. The tries 1 Bd4+? and 1 Bc5+? alone must have given the competitors a headache; moreover, their refutation in van der Heyden's database is false! And the official solution of the championship is incomplete. If we wanted to pay tribute to this excellent Romanian composer, we could choose the one in this course (3rd diagram) https://lecoursdumaitre.e-monsite.com/en/pages/lessons/cat-2024/may-28-2024.html
6
Give the main variation until the penultimate white move
Helpmate 3# is surprisingly easy when you read the name of the author, while the helpmate 5# has the difficulty you'd expect: nobody has found both solutions. The Macedonian 3# selfmate offers no discomfort, as you can guess the ‘Pickaninny’.
7
Give complete solutions.
Rehm, Hans Peter
Уральский проблемист, Apr 2001
white Pd5g5 Kc5 Ba3 Sh4
black Pc6e7e5g6f3g3e2f2 Re6e3 Sf5f1 Kf4 Bd3h2
The two fairies take us back to the early days of Thèmes/64, when we only recognised these two animals, the grasshopper and the nightrider. Both excellent but out of the championship. Even if we admit that ‘taste is king’. Let's be tolerant, not to be confused with ‘rancid outcry’.
At last, a new generation... Romanian, of course. Did you believe for a tenth of a second that there would be a new French generation? You are still very naive. There's no point in cavilling, there's nothing to be done.
11
Give the key.
Kotěšovec, Václav
Probleemblad,
4th Prize, 1987
white WGf7c6b5c2 Pb7f2d2 Sd4b2 Be2 Ka1 WNc1
black BGb6 Pd6c5c4e3 Be5 Ke4 Sf5f4 BNh2
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