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| (1) Posted by Hauke Reddmann [Friday, Aug 28, 2020 10:47] |
Shortest mate with X in Chess 960
The shortest mates with a specified piece in standard chess
are known. You can now solve 6*959 riddles, maybe there is
even an unique SPG among them. Here is a mate in 3 by Black
with a rook. (2 sol., sorry)
https://www.schachfeld.de/threads/36511-kuerzestes-matt-mit-dem-turm-chess960?p=592343#post592343
Been there, done that?!
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| (2) Posted by Sarah Hornecker [Friday, Aug 28, 2020 14:21] |
Shortest mate with the queen:
 (= 16+16 )
1.e3/e4 b6 2.Qa6 mate
Shortest mate with a knight:
 (= 16+16 )
1.Se3 g6 2.Sf5/Sg4 Sg7 3.Sh6 mate
Obviously, the starting positions can be altered slightly with the same solution.
I found no useful solution with a bishop, however.
 (= 16+16 )
Obviously, this is mate with White's third move. Is there really nothing shorter?
 (= 16+16 )
Another mate with the third white move where Black doesn't need to do anything.
Pawn might be possible in 3 or 3.5. Here's one in 4:
 (= 16+16 )
1.b3 a5 2.Kb2 f6 3.Ka3 e5+ 4.Ka4 b5 mate
This position also allows for the black rook to mate in 3, which is trivial
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| (3) Posted by Hauke Reddmann [Friday, Aug 28, 2020 18:19] |
Knight 3#: already possible in standard chess
Bishop: 2.5# is easy, dito
Pawn: don't see how even 3.5 should be possible as
the K makes it at maximum to rank 3/6. Too many
flights there!
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| (4) Posted by Ulrich Voigt [Sunday, Aug 30, 2020 00:22] |
 (= 16+16 )
1. h4 h5 2. g4 Kh7 3. c4+ Kh6 4. g5++
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| (5) Posted by Ulrich Voigt [Sunday, Aug 30, 2020 00:38] |
 (= 16+16 )
1. f4 0-0 2. f5 e6 3. fxe6 fxe6++
That's not what you meant by mate with pawn, I assume?
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| (6) Posted by James Malcom [Sunday, Aug 30, 2020 01:13] |
Nice job finding a pawn mate in 3.5 moves, Ulrich!
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| (7) Posted by Hauke Reddmann [Sunday, Aug 30, 2020 09:48] |
@Ulrich: Sounds legit :-) (It's an eon-old discussion
who mates in case of a discovered check...)
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| (8) Posted by Joost de Heer [Monday, Aug 31, 2020 14:54] |
Another 3.5 pawn mover:
 (= 16+16 )
SPG 3.5
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| (9) Posted by Sarah Hornecker [Saturday, Sep 5, 2020 21:28] |
I think the "shortest x in fairy condition" has potential.
AntiKöKo
1.g4 e5 2.g5 Bb4 stalemate
AntiKöKo, mate exclusive:
1.e4 h5 2.Q:h5 R:h5 3.e5 R:e5 mate
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| (10) Posted by Hauke Reddmann [Sunday, Sep 6, 2020 09:44] |
Why so complicated :-)
h#2 (with reversed colors), KoeKo. Unique.
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| (11) Posted by Hauke Reddmann [Sunday, Sep 6, 2020 11:20] |
Marine Chess h3.5: 1.d4 f6 2.Neh6 Pof7 3.e3 Pog6 4.Sih5# is even a SPG.
(Of course you can vary this mate considerably.)
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