Search found 1467 matches

by ildjarn
Sat Jul 28, 2018 18:41
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Sorry, I haven't been able to find anything. Can you give the exact last move (capture over which pieces exactly)?
by ildjarn
Wed Jul 25, 2018 10:33
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Hmm, at the moment the only thing I know is that in the first position the final move is 9x24 over a piece on 13. But so far nothing I've tried works. For the second, I think the last move is 12x32, but nothing further yet.
by ildjarn
Mon Jul 23, 2018 08:51
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Gérard, I don't mind the difficulty. The two problems I ran into are: - These kind of puzzles require a new way of thinking, and it takes some time getting used to it. It's very easy to get mentally stuck in an incorrect path. - Finding a solution isn't very hard (although I doubt I could've found t...
by ildjarn
Sun Jul 22, 2018 18:23
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

My mind was stuck with 2x11 as last move.

Image
27-22 28x6 7-11
Score: 10000*3+100*(7-5)+1*(1-0) = 30201
by ildjarn
Sun Jul 22, 2018 16:07
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

New attempt to #4:
Image
27-38 42x28 23x41
Score: 10000*3+100*(11-5)+1*(2-0) = 30602

Still no idea for #3...
by ildjarn
Sun Jul 22, 2018 14:22
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Gerard, could you give a hint what score I can reach? I'm out of ideas...
by ildjarn
Sat Jul 21, 2018 22:53
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

First attempt to #4: https://toernooibase.kndb.nl/applet/oerterpapplet2.0/createdia2.php?fen=W:W17,18,26,29,36,K47:B7,19,25,27,31,37,41&size=300 37-42 47x30 25x21 Score: 10000*3+100*(13-5)+1*(1-0) = 30801 And a new attempt for #3: https://toernooibase.kndb.nl/applet/oerterpapplet2.0/createdia2.php?f...
by ildjarn
Fri Jul 20, 2018 18:01
Forum: het Nieuwe Forum
Topic: Fraaie combinaties
Replies: 15
Views: 4443

Re: Fraaie combinaties

Image
by ildjarn
Thu Jul 19, 2018 22:45
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Spoiler:
2: K11 39 40 44 / 30 for 1. 39-34 30x50 (10000*2+100*(4-1)+(1-2)=20299)
by ildjarn
Thu Jul 19, 2018 22:19
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

tries for diagram 1-3: 1: Start position K11, 34 / 45. Last move 45-50, score 10000*1+100*(2-1)+(1-2)=10099 2: Start position K22, 33, 40, 44 / 28. Last moves 22-11 28x50, score 10000*2+100*(4-1)+(1-2)=20399 3: Start position 6, 16, 36 / 1, 2, 12, 21, 22, 27. Last moves 27-31 36x7 2x11. Score 10000*...
by ildjarn
Sun Jul 15, 2018 14:52
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

I like these kind of puzzles, but I doubt many people here would be interested, since you can't complain about the draw margin in these puzzles.
by ildjarn
Sat Jul 14, 2018 23:34
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Oh, of course: 32-37 42x11.
by ildjarn
Sat Jul 14, 2018 23:15
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

For 16/11,21:
Image
020601, 32-38 33x11
For 15/10,20:
Image
020401, 4-31 36x20
by ildjarn
Sat Jul 14, 2018 21:29
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

Image
030201 is smaller than 030400.
by ildjarn
Fri Jul 13, 2018 22:59
Forum: het Nieuwe Forum
Topic: Retrograde problems
Replies: 59
Views: 9761

Re: Retrograde problems

The rules don't specify it but I assume that white has the move in all these diagrams?

The examples:
Spoiler:
1: 1. 44-39 33x44
2: Either 34-29 23x34 or 34-30 45x34
And the diagrams:
Spoiler:
1: 1. 21-16 25x21
2: 1. 20-15 16x20
3: 1. 34-29 15x23
4: 1. 33-28 25x23
5. 1. 28-23 26x28