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Posers and Puzzles

T

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Originally posted by jebry
Found a 5 mover and it can't get any shorter than that:

1. d5 c5
2. cd Qb6
3. c6 Qb2
4. cb Qa1
5. bc=Q++

Jeff
I agree with your 15-ply solution. Well done. 😲

However, your 9-ply solution can be improved. 😛

c

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What's wrong with the 9-ply solution?
White needs 5 moves to promote the pawn.
If he wants to checkmate with the pawn from 7th rank (it would be only 4 moves then) it has to be done from a square that is covered by one of White's pieces. I see Qd1 covering d7. Therefore White's gotta move the d-pawn. But I dont see how that can be mate in 4 moves. Same with the pawns and rooks on a- and h-file. It would take 4 moves to checkmate with gxh7 or bxa7. But how to get the Black king into position that fast?

T

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Originally posted by crazyblue
What's wrong with the 9-ply solution?
White needs 5 moves to promote the pawn.
If he wants to checkmate with the pawn from 7th rank (it would be only 4 moves then) it has to be done from a square that is covered by one of White's piec ...[text shortened]... or bxa7. But how to get the Black king into position that fast?
Originally posted by crazyblue
What's wrong with the 9-ply solution?

It's too long.

Originally posted by crazyblue
White needs 5 moves to promote the pawn.

Lose the pawn, so to speak. 🙂

B
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Originally posted by THUDandBLUNDER
Ah yes!

Here is your latest offering (dated April 17, almost 3 months ago), something that even bobbob1056th himself would no doubt be proud of:

If you're at a loose end one evening and wish to pass some time, set up a chessboard and simply do the following, either alone or with the aid of a friend:

Play just 3 moves into a game (each si ...[text shortened]...


Although it does not resemble a puzzle, it certainly invokes a few question marks!

Nothing wrong with it. It can also make people think about how the possibilities in chess explode very quickly at the start of a game.

BigDogg
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Originally posted by THUDandBLUNDER
Originally posted by crazyblue
[b]What's wrong with the 9-ply solution?


It's too long.

Originally posted by crazyblue
White needs 5 moves to promote the pawn.

Lose the pawn, so to speak. 🙂[/b]
Too long, but not by much!

1.f3 e5 2.Kf2 h5 3.Kg3 h4+ 4.Kg4 d5#


c

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Ahh, just tell me White "gets" mated and I save 20 mins of my lifetime by not analyzing all possible White mates. 🙄

But you are right, in the question it didnt say that it's White who checkmates, I just assumed it.

T

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Originally posted by BigDoggProblem


1.f3 e5 2.Kf2 h5 3.Kg3 h4+ 4.Kg4 d5#

Correct, although 4...d6# is slightly quicker. 😵

j

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Ah!

Move the king out! I never considered that because I assumed that it would be impossible to trap the king on the open board that quickly! Obviously, I was wrong!

Excellent solution!
Jeff

B
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http://www.redhotpawn.com/board/showthread.php?threadid=23346

BigDogg
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Originally posted by Bowmann
http://www.redhotpawn.com/board/showthread.php?threadid=23346
LOL, that's funny. I forgot that this one had been posted before, and forgot the solution, too!

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