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Problem 601: Aydan Huseynzade - Helpmate
aydan.huseynzade(01.07.2015) Another nice helpmate from the Azerbaijan lady with intricate line-play! 
601. Aydan Huseynzade (Azerbaijan)
H#2        2 sol.      (7+14)

1.Kd3 Bg5 2.Rd4 Sg2#

1.Kc5 Rf6 2.Sd4 Sf7#


Good constructional skill in handling two white batteries! (Seetharaman)



+2 #1 Shankar Ram 2015-07-01 03:00
There was some discussion in the matplus forum about her surname - whether it was Huseynzade or Huseynzada?

So Huseynzade is correct?
+2 #2 Toshiji Kawagoe 2015-07-01 03:23
Battery mates as well as wS/B moves interfering Black's line pieces are nicely featured in both solutions. Quite impressive!
+1 #3 Seetharaman Kalyan 2015-07-01 05:52
Quoting Shankar Ram:
There was some discussion in the matplus forum about her surname. So Huseynzade is correct?

Yes. That is the surname she has given.
+3 #4 Vitaly Medintsev 2015-07-01 09:07
Very good for the beginner!
Compare to:
+2 #5 Seetharaman Kalyan 2015-07-01 10:56
Quoting Vitaly Medintsev:
Very good for the beginner!
Compare to:

The expert has added pinmates with dual avoidance to the indirect/direct battery scheme!
+2 #6 Kenan Velikhanov 2015-07-01 13:10
Last name is spelled correctly!
Please publish a new version.

1. Qa7 Bf1
2. Kb6 Sbd4#
1. Qd8 Re2
2. Kd7 Sed4#
+2 #7 Aleksey Oganesjan 2015-07-01 14:23
Here is a diagram for the comment #6:

+1 #8 Vitaly Medintsev 2015-07-01 14:39
Good version: such a rich content for this light-weight setting with a complete orthogonal-diagonal analogy!
I hope there will be no forerunners :-)
+1 #9 Kenan Velikhanov 2015-07-01 15:03
Thanks Aleksey!
I spoke to Aidan, she does not mind to publish this more cost-effective position. Exact same idea, the transformation of half-battery for direct battery .With the advent of two horses on one and the same field.
+1 #10 Nikola Predrag 2015-07-01 15:09
The scheme of the original is rather complex for a beginner's imagination and the talent is obvious.
The mating moves Se3-g2/Sd6-f7 close the black lines but the wS which has moved has no guarding function in that mate.

The new version is a simplified C.Johnson's scheme, with selfblocks instead of lineclosing anticipatory selfpin.

Aydan's idea, combined with the flightguard strategically richer, but a convincing mechanism should be created.

In the following example, bQ is a good part of the mechanism but bR&bB have artificial functions:
W: Sf6,Sc5,Pa4,Bh4,Pd2,Rc1,Kh1;
B: Bh7,Kd6,Qb4,Re2; h#2
1.Re8 Rf1 2.Ke7 Sfe4#
1.Kc6 Bf2 2.Qb7 Sce4#

Could that be improved?
+1 #11 Vitaly Medintsev 2015-07-01 15:37
but the wS which has moved has no guarding function in that mate
- true.
That is why I like 5+4 version more.
Could the version, suggested by Nikola, be improved? Well, we'll see :-)
+1 #12 Vitaly Medintsev 2015-07-01 15:58

Here we have W-B line-closing effect on mating move, but 1.Rxb2 is an obvious defect since this move has double motivation, while the goal of its thematic reflection - 2.Qe1 - is pure...
+1 #13 Nikola Predrag 2015-07-01 18:46
Yes Vitaly, the black mechanism bQ/bR is now good with regards to "my" idea of reciprocity.
But "my" idea is not good because the lineclosing is completely accidental, just as it was shown in post No.6.

To make it convincing, the precise arrival of wS should be determined purely by the lineclosing.
A rough example:
W: Pf6,Pa5,Sf5,Sc4,Bh3,Kh2,Rc1; B:
Ba8,Bg7,Rh7,Kd5,Pb4,Sh1; h#2
1.Ke6 Rf1 2.Bd5 Sh6(Sfd6?)#
1.Bh6 Bf1 2.Kc5 Sce3(Sb6?)#
+1 #14 Vitaly Medintsev 2015-07-01 20:26
But "my" idea is not good because the lineclosing is completely accidental
Yes, I agree.
The next step is to combine a pure dual-avoidance motivated by the need of line-closing, given in your rough example, with tactical homogenity of the play that was shown in the version of comment#6
Could someone do it?
+1 #15 Nikola Predrag 2015-07-01 21:10
It could be improved like:
W: Pd6,Pa5,Sf5 Sc4,Bh3,Rc1,Kh1; B:
Ba8,Ba7,Kd5,Pb4,Sh4,Pa3,Rb3; h#2
1.Rf3 Bf1 2.Kc5 Sce3#(Sb6?)
1.Sg2 Rf1 2.Ke6 Sfe3#(Se7?)
+1 #16 Vitaly Medintsev 2015-07-01 22:03
Here is diagram to comment #15

Actually, I'm not sure that it is an improvement:
1) there is no function permutation between bRb3/bSh4
2) there is an interesting false maneuver 1.Sf3? but it presents only in one solution.
Finally, we must explain (to less experience composers) what is "an artificial effect" and what is not.
See, what I mean:
0 #17 Nikola Predrag 2015-07-03 12:35
author gives a stipulated position and the author's solution (possibly including an explanation of the thematic content).
Every position is artificially constructed to present some idea.
And it is relevant what is the truth in the given position.
If the truth doesn't support the author's claim, the appearance of thematic content is artificial.

Of course, a changed position may show some other "truth" but 'why would that be relevant?', that's the question.

When compared to your example (post No.16), my example (post No.15) presents the additional line-closing strategy.
And that's a new dimension, which requires such properties of the given position.

Why should that dimension be lost by changing the position?
Of course, to ask such a question, one should be aware of that dimension.
0 #18 Vitaly Medintsev 2015-07-03 15:53
our points of view on this subject are very near.
Yes, chess composition is an artificial phenomenon and composing is an artificial activity. I named "artificial" such effects that are not essential (non-necessary) for an appropriate author's idea.
In your example (comment#15, first diagram in comment#16) line-closing effect on mating move is a part of author's idea, so it is not artificial while the same effect in the version, given in comment#12, is artificial (accidental) since the basic motivation of arrival on key square is guarding flight.

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