[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 626

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MetaDriver:
Why?
I read it. You can do it. I was taught a long time ago that a pawn should not walk across a broken field.
 
MetaDriver:

No way, I don't believe it. :)

The only achievable position in four moves is mate-like:


(h5, d5, Fd6+, Ff4), but it's not mate, black has a cover g4.

Alexei, confirm that there is a correct solution and all this is not a joke.

Correction: (h5, d5, Fd6+, Ff4), but this is not mate, White has cover g4.
 
 
MetaDriver:

No way, I don't believe it. :)


I don't know how to write it down.

it's like this.

d5, g8-f6, d8-d6, d6-f4

 
Kocty:


Even if there were a four-move sequence for Black - White has h3.

But there is no such sequence, even if a pawn from e6 is moved to e5 ;)

 
maxfade:

I don't know how to write it down correctly.

it's like this.

d5, g8-f6, d8-d6, d6-f4


White closes with pawn g2-g4
 
Kocty:

What are you, stuck? :)

Delete unnecessary posts, please.

 
Kocty:

What are you, stuck? :)

Delete unnecessary posts, please.

 
Kocty:
The king goes to Krh3 - that's not a mate.
 
Kocty:

What are you, stuck? :)

Delete unnecessary posts, please.

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