Practical gems: #1-#8.

Discussion and analysis about certain positions.

Practical gems: #1-#8.

Postby Alex_Moiseyev on Fri Nov 18, 2005 7:57 pm

Some time ago I decided start to collect practical middle game landings and problems. I came over several problem books and selected best positions with number of mans on each side no more than 6. I comeup in total with 100 positions, but it is obvious, that this number shall be around 500-800. Most worse thing happened - I didn't write down solution !!! :twisted: :roll: :oops:

All these 100 positions are stored somewhere on my PC in one Word document, but to get a right solutions - I've to spend now the same time to research all books I used !

Finally - I decided to share with forum readers some positions from my collection. Try to solve them w/o using programs. This is very good practice and training tool :idea:

Are you ready to help me to recover solution for my compilation ? :lol: Remember - solution should cover all reasonable and interesting continuations from both sides.

#1. T. Wiswell
Image
White to move and draw

#2. C. Brown
Image
White to move and win

#3. E. Durgin
Image
White to move and draw

#4. G. Price
Image
Red to move and win

#5. J. Robertson
Image
White to move and win

#6. A. Moiseyev
Image
White to move and draw

#7. #7 C.Brown&A.Stewart
Image
Red to move and draw

#8. J. Janiver
Image
White to move and win.
Last edited by Alex_Moiseyev on Fri Nov 25, 2005 4:51 pm, edited 1 time in total.
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Re: Practical gems: #1-#8.

Postby matthewkooshad on Fri Nov 18, 2005 8:50 pm

Wow Alex, you are putting some work out there! I think 26-23 is the draw move on the first one, but I could not see all of the solutions to the end. I will have to take a stab at these if there are any left!
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Tue Nov 22, 2005 11:52 am

Probably putting all 8 positions together was too much fun :roll: Lets do it one by one :idea: Here is solution for the first problem, composed by T. Wiswell (see diagram A):

26-23 14-18 23-14 9-18 31-26 (20-16 18-23 RW) 5-9 20-16 9-14 16-11 14-17 12-8* (11-7 loses after 17-21 7-2/3 21-30 2/3-7 30-23 7-10 18-25 10-26 13-17 26-30 25-29 RW ) 17-21 8-3 21-30 3-7 30-23 7-10 18-25 10-26 13-17 26-30 25-29 ... now into the second phase. See diagram B : 11-7 4-8 7-3 8-11 3-7 11-15 7-10 15-19 10-14 17-21 14-18 and move is good for draw.

A. T. Wiswell. White to move and draw
Image
26-23*

B. White to move and draw
Image
11-7*

=======================================================================

I am expecting and accepting now solutions for the second position (see diagram C) from initial set.

C C Brown. White to move and win
Image

You can use programs if you really want, but in this case you have to provide all "beauty variations", not just one winning move. You have to work hard with database, building solution "move by move". This is very interesting and not a "trivia work"
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Wed Nov 23, 2005 2:43 pm

I believe this is the solution.

7-3, 10-14(A), 3-7, 14-17(if 14-18, 31-27 will play into the same, if 1-5, 31-27 into A1.), 31-26, 17-21, 26-22, 21-25, 22-18, 25-30, 18-14, 6-10, 13-9, 10-17, 9-6, 1-10, 7-21, 30-26, 21-17, 26-23, 17-14, 23-19, 14-10 First postion WW.

A. 10-15 (A1), 3-7, 15-19(or 15-18, 31-27) plays into the same position as trunk.

A1. 1-5, 3-7, 10-14, 31-27, 14-18, 27-24, 18-23, 24-19, 23-27, 19-25 ect. WW.

Am I correct Alex? I got stuck on 31-26 instead of 7-3 for a long time, but I believe that draws.
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Wed Nov 23, 2005 11:05 pm

Hi, Jonathon ! Thanks for your fine research. For 3 days, after I made post - I was almost crying :evil: :roll: and thinking if anyone ever read it and try to solve problems. And also - if anyone need it. I am OK with audience in any number greater than 0 ! :lol:

**************************

Trully, I didn't have a full solution of this position in front me, when I posted it here. I had remember a main idea (trunk play), but didn't remember all details. Today I reveiewed this position fully with Nemesis 8 pieces database.

I agree with all your lines and way you represented solution, only couple corrections :

1. I cut off a bit :lol: main line, because we call "1st position" any situation with 2 pieces against 2 withg right move. Therefore, I stopped it after trade 2 for 2 - becasue this is already 1st position.

2. I think it make sense to add to solution variation B (see below) - explanation, why 31-26 draw ! See diagram #1 - this is core point. If white don't play 31-26 ? in the beginning, they can play later 31-27 and go around to square 14. Very nice ! Agree ?

**********************

7-3, 10-14(AB), 3-7, 14-17(if 14-18, 31-27 will play into the same, if 1-5, 31-27 into A1.), 31-26, 17-21, 26-22, 21-25, 22-18, 25-30, 18-14, 6-10, 13-9, 10-17, 9-6, 1-10, 7-21 First postion WW.

A. 10-15 (A1), 3-7, 15-19(or 15-18, 31-27) plays into the same position as trunk.

B. 31-26 ? 10-15* 7-3 15-18* 3-7 1-5 Draw !

#1. White to move, red draw
Image

#2. White to move and win
Image
31-27*

Jonathon, as I said - I am OK with way you represented solution, but for official recording I would suggest another way (see below). As you can see - it shorter and has only summary information. Each letter and trunk line represents new idea and new line. Anything else - just different order of moves into one of these 3 lines.

After checking solution with 8 pieces database, I feel comfortable now to keep this solution as official, even if author, Mr. C. Brown, had it slight different.

Accuracy and contest is important !


7-3 (A) 10-14, 3-7, 14-17 (B), 31-26, 17-21, 26-22, 21-25, 22-18, 25-30, 18-14, 6-10, 13-9, 10-17, 9-6, 1-10, 7-21 into 1st position WW.

A. 31-26 ? 10-15* 7-3 15-18* 3-7 1-5 Draw !

B 14-18 31-27 (31-26 ? 1-5 same as note A) 1-5 (18-22 27-23 same as trunk) 27-24* WW
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Thu Nov 24, 2005 12:58 am

Hey, Jonathon !

By using 8 pieces database and looking around, I find wonderful way to extend Mr. Brown problem and improve it by adding couple more ideas and variations. See diagram below (do you like these colors ? I hate them !)

I had a hard time to name properly an author - C. Brown, or C. brown & A. Moiseyev. Finally I decided to keep author rights 100% for Mr. Brown, because his ideas and variations still dominate here, and my additions are about 10%-15% of whole things.

Red to move, white wins
Image
C. Brown, Revised 2005
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Fri Nov 25, 2005 3:48 pm

Hi Alex,

Yes that is a very nice extension on Mr. Brown's problem. Actually I'd almost consider it a new theme, because the key to the other problem was whites ability to move 18-14 forcing white to take the 2 for 2 into first position or allow the man on 6 to be captured. This problem has similar starting position, but the winning sequence is different.

On problem number 4 of your list, is that White to move and win?
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Fri Nov 25, 2005 4:48 pm

J_D_C_ wrote:winning sequence is different


Thanks for pointing my mistake :cry: I expected solution the same, but ... after 5-9 white can win 8-3 or 31-27 (not 8-4). This is a very serious bag for problem and it is called: DUAL. At that point - forget about "REVISED" version, it can't be publish in this way, because duals are not allowed and you can't find them in problems of experienced and respected composers.

#3. E. Durgin
Image
White to move and draw

#4. G. Price
Image
Red to move and win
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Tue Nov 29, 2005 12:41 am

Any progress with solution ? :lol: I am busy with my book now, but will follow up this topic, and place more practical gems from my file, once we resolve these :idea:
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Thu Dec 01, 2005 3:57 pm

Hi Alex, sorry for my slow responses, I am I've been very busy with school this past week.

Problem 3

13-9 11-15, 9-6 15-24, 23-18*(if 2-6, the man on 10 can escape to the side by 10-14) 3-8 (or 3-7 plays into the same, but reds only chance to win is to free the man on 10 immediately before comes back behind him.), 6-2 8-11, 2-7 10-15, 7-3* 15-22, 3-8 11-15(or 16-20, 8-15 24-27, 31-24 20-27, 15-18 22-26 Draw.) 8-11 Draw.

I haven
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Fri Dec 09, 2005 12:09 am

OK, I think it's a right time to move ahead.

In the 4th position solution is:

9-14 22-17, 14-18 20-16, 15-19 16-11 (A), 18-22 11-7, 22-31 7-3, 10-15 3-7, 15-18 7-11, 31-26* 11-15, 18-22 15-24, 26-23 RW

A. 17-14, 10-17 21-14, 19-24 16-11, 24-28 11-8, 28-32 8-4, 32-28 4-8, 28-24 RW

=================================================================

Now we have #5 and #6.

#5. J. Robertson
Image
White to move and win

#6. A. Moiseyev
Image
White to move and draw
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Sat Dec 10, 2005 3:48 pm

#5. J. Robertson

31-27, 17-21 (if 17-22, 18-15 11-18, 20-11 ect.) 18-14, 21-25(A) 14-9, 25-30 19-15, 11-18 23-14, 16-19 24-15, 30-26 15-11 ect. WW

A) 13-17 14-9, 17-22 19-15, 11-18 23-14, 22-26 20-11, 26-31 9-6, 12-16 6-1, 16-20 1-6, 21-25 14-9, 25-30 11-7, 3-10 6-15, 30-26 9-6, 26-22 6-2, 31-26 2-6, 26-31 24-19, 31-24 15-10, 24-15 10-19 WW
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Sun Dec 11, 2005 11:41 am

#6. A. Moiseyev

To me it is harder to find draws in problems than wins, but I believe this is the solution.

32-27 18-22(A) 21-17 22-26 17-13 1-5 27-23 26-31 23-18 31-26 18-15 26-23(B) 29-25 23-19 15-11 19-23 (if 19-15 into B.) 11-7 6-10 25-21 Draw.

A. 1-5 21-17 into trunk. (29-25 loses by 6-9 14-10 9-14 10-7 5-9 27-23 18-27 25-22 9-13 7-2 27-31 2-6 14-17 21-14 31-26 RW.) I included this because it was initially my trunk draw until I typed it up here and realized red could pitch back and win.

B. 26-22 14-10 22-18 10-1 18-11 1-6 11-15 29-25 20-24 25-22 ect. Draw.
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Re: Practical gems: #1-#8.

Postby Alex_Moiseyev on Sun Dec 11, 2005 12:19 pm

J_D_C_ wrote:To me it is harder to find draws in problems than wins, but I believe this is the solution.


Hi, dear Jonathon !

Thanks for your tremendous efforts to solve these problems. I know - this is not easy, and all these problems are at the high level quality and complexity. This particular problem is one of my best problems which I am really proud. I composed it base on one of my real games with Mike Ross from North Carolina State ty 2004. I also used a help of 8 pieces database to compose this problem.

Below is my email, dated 1/17/2005 to Wilma Wolverton, editor of MCA Newsletter, where I offered her this problem for the February monthly problem. If I am not mistaken - problem was selected "as monthly problem" for March issue and published there.

See copy of email with full complete solution.

Especially, I would like to point your and other readers attention to variation D - most beautiful thing in problem !

See diagram.

Red to move and win
Image
23-26 22-18 26-30/31 18-15 30-26 14-10 20-24 32-28 26-22* 28-19 22-18 RW


=========================================================

Hello, Wilma !

If you didn't make selection yet for the February monthly problem, I am happy and honored to share with you and MCA Newsletter readers the problem I composed recently, and consider as one of the best draughts problems I ever did in the past !

It was done "in spirit" of Tom Wiswell problems !

White: mans 14, 21, 29, 32 (4)
Red: mans 1, 6, 18, 20 (4)
White to move and draw.

Solution:

29-25 (A, B) 18-23 (C) 21-17 (D) 23-26 (E) 17-13* 1-5 25-22 26-30 22-18 30-26 18-15 26-23 14-10 23-19 10-1 19-10 32-28 Draw

A) 32-27? 18-22 27-23 22-26 23-18 26-31 18-15 31-26 14-10 26-22 10-7 20-24 (or 6-9) ... I am leaving it here with verdict Red Wins, which also is proved by the program 8 pieces database !

B) 21-17? 18-22* (b1) 17-13 1-5 32-27 22-26 27-23 26-31 23-18 31-26 18-15 26-23 Red Wins

b1) 18-23 allows white to play 29-25 and return back on trunk with draw.

C) 20-24 32-28* (c1) 24-27 28-24 27-31 21-17 31-27 (c2) 24-20 (c3) 27-23 17-13 1-5 20-16 23-26 16-11 26-30 (c4) 25-21 30-25 11-7 25-22 7-2 22-17 2-9 17-10 9-14 Draw

c1) 21-17? 24-27* Red Wins

c2) 31-26 24-19* 26-22 19-15 22-29 14-10 Draw

c3) 24-19? 27-23 19-16 6-9 14-5 18-22 Red Wins

c4) 26-22 11-7 22-29 7-2 Draw

D) 25-22? 23-26 22-18 (D1) 26-30/31 18-15 30-26 14-10 20-24 32-28 26-22* 28-19 22-18 Red Wins

D1) 21-17 (too late) 26-30 (or 20-24 first) 17-13 20-24 14-9 6-10 22-17 30-25 9-6 24-28 6-2 25-21 2-6 21-14 6-15 14-9 Red Wins

E) 20-24 17-13 (or 32-28 ) etc Draw

Please, let me know, if you want to make this a February issue monthly problem, and what do you think about this problem.

Respectfully,

Alex Moiseyev
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Re: Practical gems: #1-#8.

Postby J_D_C_ on Sun Dec 11, 2005 1:26 pm

Thanks Alex!

Seems I was wrong with nearly all of my analysis :oops:. I remember now seeing the 20-24 move instead of 23-19 on move 7 of my analysis. I was going to go back and look at it, but at first glance I thought it was just delaying reds attack even further, and later forgot about it. Thanks for your quick response and for the correct play :) .
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