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MatPlus.Net Forum Twomovers An interesting cycle task
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(1) Posted by Siegfried Hornecker [Tuesday, Aug 15, 2017 09:58]; edited by Siegfried Hornecker [17-08-15]

An interesting cycle task

(= 11+10 )

Dieter Kutzborski
Berlin vs. Munich, Die Schwalbe 1989, 1st place
Mate in 2

1.d3? (2.f4/Rf5/Sd7# ABC) d:e4 2.d4# D - but 1.-Q:e3!
1.f3? (2.Rf5/Sd7/d4# BCD) d:e4 2.f4# A - but 1.-B:e3!
1.Bh7? (2.Sd7/d4/f4# CDA) d:e4 2.Rf5# B - but 1.-Rg6!
1.Sc5! (2.d4/f4/Rf5# DAB) d:e4 2.Sd7# C´

Using the nice trick of the double knight on the b-file, the task was made possible, although C and C´ don't have the same knight. Still an incredible problem that rightfully received the first place in this tourney and would have probably won a high prize in any tourney.

EDIT: Title edited after reply from Misha!
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(2) Posted by Miodrag Mladenović [Tuesday, Aug 15, 2017 10:24]

I do not think that this is "A Le Grand Cycle". I did compose several "A Le Grand Cycle" problems and it's very difficult theme. In this problem there is no cycle at all. Actually there are no changes. There are always the same mates and actually not only that there are different knights that are playing on d7 but also it's not same move Pe2-e4 and Pe3-e4. I know that some problemists are accepting this as a same move but personally I do not count them as a same move. This is definitely not a "Le Grand Cycle" task. "Le Grand Cycle" has the following scheme:

1.X? [2.A#] 1... a 2.B# (1...b!)
1.Y? [2.B#] 1... a 2.C# (1...c!)
1.Z! [2.C#] 1... a 2.A#
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(3) Posted by Siegfried Hornecker [Tuesday, Aug 15, 2017 10:32]; edited by Siegfried Hornecker [17-08-15]

Alright, I corrected the title. Thanks!

I meant it as a cycle task showing the Le Grand theme, not as a Le Grand Cycle - I didn't even know that officially was defined. So it was misleading, and with your reply I am not sure it is a Le Grand even.
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MatPlus.Net Forum Twomovers An interesting cycle task