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Main
Date: 08 Aug 2008 13:47:06
From: Ian Osgood
Subject: Construction problem: fewest free moves to win?
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The following problem occurred to me, and I've been having trouble
finding the answer on the internet. It came up in a proposal of using
free moves as a handicap, instead of spotting pieces.
From the initial starting position, what is the shortest sequence of
"free" moves by white to obtain a forced won position?
Black makes a move at the end of the sequence (so the direct mate 1.
e3 2. Bc4 3. Qf3 4. Qxf7# is disallowed).
Same problem, captures disallowed.
Thanks in advance,
Ian
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Date: 13 Aug 2008 12:16:06
From: SBD
Subject: Re: Construction problem: fewest free moves to win?
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On Aug 12, 4:57 pm, Ian Osgood <[email protected] > wrote:
> On Aug 9, 9:09 pm, SBD <[email protected]> wrote:
>
>
>
> > On Aug 8, 3:47 pm, Ian Osgood <[email protected]> wrote:
>
> > > The following problem occurred to me, and I've been having trouble
> > > finding the answer on the internet. It came up in a proposal of using
> > > free moves as a handicap, instead of spotting pieces.
>
> > > From the initial starting position, what is the shortest sequence of
> > > "free" moves by white to obtain a forced won position?
>
> > > Black makes a move at the end of the sequence (so the direct mate 1.
> > > e3 2. Bc4 3. Qf3 4. Qxf7# is disallowed).
>
> > > Same problem, captures disallowed.
>
> > > Thanks in advance,
>
> > > Ian
>
> > Five is easy, correct?
>
> > 1. e3 2. Qh5 3. Bc4 4. Nf3 5. Ng5 no counter possible...
>
> > Can it be done in less? Have you tried the retro list or site?
>
> 5. Ne5 is even clearer (mate in 2).
>
> What is the retro site?
>
> Ian
http://www.janko.at/Retros/
Also maintain a mailing list on which problems are often composed in
consensus.
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Date: 12 Aug 2008 14:57:57
From: Ian Osgood
Subject: Re: Construction problem: fewest free moves to win?
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On Aug 9, 9:09=A0pm, SBD <[email protected] > wrote:
> On Aug 8, 3:47 pm, Ian Osgood <[email protected]> wrote:
>
> > The following problem occurred to me, and I've been having trouble
> > finding the answer on the internet. It came up in a proposal of using
> > free moves as a handicap, instead of spotting pieces.
>
> > From the initial starting position, what is the shortest sequence of
> > "free" moves by white to obtain a forced won position?
>
> > Black makes a move at the end of the sequence (so the direct mate 1.
> > e3 2. Bc4 3. Qf3 4. Qxf7# is disallowed).
>
> > Same problem, captures disallowed.
>
> > Thanks in advance,
>
> > Ian
>
> Five is easy, correct?
>
> 1. e3 2. Qh5 3. Bc4 4. Nf3 5. Ng5 no counter possible...
>
> Can it be done in less? Have you tried the retro list or site?
5. Ne5 is even clearer (mate in 2).
What is the retro site?
Ian
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Date: 09 Aug 2008 21:09:13
From: SBD
Subject: Re: Construction problem: fewest free moves to win?
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On Aug 8, 3:47 pm, Ian Osgood <[email protected] > wrote:
> The following problem occurred to me, and I've been having trouble
> finding the answer on the internet. It came up in a proposal of using
> free moves as a handicap, instead of spotting pieces.
>
> From the initial starting position, what is the shortest sequence of
> "free" moves by white to obtain a forced won position?
>
> Black makes a move at the end of the sequence (so the direct mate 1.
> e3 2. Bc4 3. Qf3 4. Qxf7# is disallowed).
>
> Same problem, captures disallowed.
>
> Thanks in advance,
>
> Ian
Five is easy, correct?
1. e3 2. Qh5 3. Bc4 4. Nf3 5. Ng5 no counter possible...
Can it be done in less? Have you tried the retro list or site?
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