how many of these will u post?
Endgame Study - P. Arestov, 1986
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This study appears to be dualed - but not through a tablebase issue. Even good old StockFish sees it.
White can play 3. Rb4 straight away (instead of inserting Ra3+). After 3. ... Rc2 both 4. Rg1+ and 4. Rf1 win for white!
Edit: Actually Rf1 and Rg1 also win in the authors line in addition to 0-0. Kind of sloppy. I'm afraid I'll have to place it under Arrest(ov).
lodrac91 wrote:
I have proposed a line on 3.Rb4.
In that line white should play 6. Ke3! Rc1 7. Rf3+ 1-0
Simplest by syzygy here is 5. Rff4! But I think this endgame is beyond hope. Not only are there duals after 3. Rb4, there are similar duals in the author's line and - as I just found out - there are even more and systematic duals in the last stage of the solution. The whole idea appears to be unworkable.
I already tried adding a smart pawn but couldn't find one to solve all issues
lodrac91 wrote:
I am asking the author directly, I found his email address.
Good idea! You never know whether he has a trick up his sleeve!
Not much harm done. No unjust awards demanding correction. Every composer has occasional blind spots certainly in the pre-tablebase era. If there is blame anywhere it is in the communities of solvers, editors and judges you would expect to scrutinize these entries! That too has become much easier with tablebases and engines and it is no surprise that Jan van Reek cooked and repaired a large amount of old compositions around the turn of the century. He had the computing power!
May 22, 2021
0
#16
I can fight hard to save a study, can you show what you found with an additional pawn?
I will have to redo the analysis, don't know it by heart. Most attempts were with partial solutions; only looked at the final phase to find something workable there. If I had, I could have reconstructed a new beginning. When I have some more time I will send you some failed lines. The main tries were with an extra black pawn on the h-file.
Did you find it?
Drag the pieces to solve!