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C-54
08/10/11/15/21/27/33 — 19/30/32/34/40/48/50
Almost the same position with 34 on 35:
S.M. van Eijk (collected work, part 5) [2002]B-83
04/08/13/14/26/28/30 — 17/21/22/27/33/37/43
With 30 on 24: S. Zilevicius (several concourses, published in Shashki, may 1985). [thanks Alain for assistence in this one]A lot of compositions, and there is so little time for me these weeks. A few results after a global check of category B:
B-20
01/08/09/10/18/28/39 — 06/11/20/27/30/37/48
Exact copy of: R. Valeev (Sjasjetsjny Mir, 1998 nr. 4)B-74
07/08/09/19/23/28/36 — 34/37/38/44/45/47/49
In the version 07/08/09/19/23/28/36 — 34/38/40/41/42/44/49 J. Besnier (Le Bavard, 16-2-1924) made before, many other versions are made since.B-87
07/08/09/10/26/35/40 — 20/24/25/31/37/41/49
In the version 07/08/09/10/26/35/39 — 20/24/25/33/37/41/44 already made by E. Tkatchenko (Leninska Zmina, 16-5-1985): 28, 31, 15, 1 etc. (but it has a dual: 40, 19, 32, 204, 5, 50).C-08
02/07/12/22/30/35/36 — 13/14/19/23/29/33/47
In the version 02/07/12/22/25/35/36 — 10/13/19/23/29/39/41 made by Sauvaire (Le Provencal, 17-4-1955): 33, 28, 8, 1
In the version 02/07/12/22/25/35/36 — 13/14/19/23/29/38/41 made by N.N. (concours 1955/1956; Het Damspel, november 1955 [position 5058])c-20
08/18/22/26/27/28/40 — 11/14/17/29/37/39/42
Exact copy of B. Sjkitkin (Moj Zhurnal, june 1998)C-30
02/04/09/29/32/37/44 — 08/13/15/18/19/20/41
Compare with: 02/04/09/29/33/34/37 — 08/13/15/18/20/23/38 E. Zubov (Shashki forum, 8-8-2006): 10, 4, 13, 29(more to come …?!)
Message from Alain:
«Le motif 27-32/10-43 est répertorié dans le livre de A.van der Stoep, 2×2 Verzameling 1993.»
Alain Tavernier wrote me, the motiv was already used by D. van den Berg in 2003. But it’s a 2×2, would it still not be older ?!
On this site I found the motiv: 27/32 — 14/43 [Tsvetov, 2008].
But this motiv is older. I have a 7×7 problem from Patry, made a year ago, ending in the position after whites first move 10.
Probably it’s even much older.alemo wrote:After (36) (41) 38 (46) 15 (41) strategic =.
Continue … 30, 36+ … or 440, 40, 30, 36+
Mmm, yeah, I was not paying full attention. (41) is a stupid last move. Just wanted to say: black simply must stay on the line 5-46 to make =. After a move as (5) it is =, according to the endgame database.
Indeed a nice idea. But I’m afraid after 32 (30) 24 (29) there are more winning moves, as 35, 28, 6 or 328, 34, 6.
