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   Construct a Game (Chess)

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Topic: Construct a Game (Chess) (Read 1455 times)

ThudnBlunder
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Construct a Game (Chess)
« on: Jul 13^th, 2005, 5:36am »

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Construct a game that finishes with 6. P(g7) x f8 = N mate.

« Last Edit: Jul 13^th, 2005, 5:50am by ThudnBlunder »

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SMQ
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Re: Construct a Game (Chess)
« Reply #1 on: Jul 13^th, 2005, 6:30am »

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Key realizations:

1) White has one more move than needed to get the pawn there, so there must be another white piece involved
2) Black's king must have moved to be attackable from f8. and must not be able to move back
3) f8 must be protected form Black's queen, either because she's noved or because a piece other than the king interposes.
4) If black's knight at g8 has moved, f8 is attacked by black's rook at h8 (unless it has moved as well)

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Leo Broukhis
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Re: Construct a Game (Chess)
« Reply #2 on: Jul 13^th, 2005, 12:28pm »

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From a friend:

1. h2-h3 d7-d6
2. h3-h4 e8-d7
3. h4-h5 b7-c6
4. h5-h6 g8-f6
5. h6xg7 f6-e8
6. g7xf8N

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SMQ
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Re: Construct a Game (Chess)
« Reply #3 on: Jul 13^th, 2005, 1:05pm »

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on Jul 13^th, 2005, 12:28pm, Leonid Broukhis wrote:

3. ... b7-c6

eh?

Quote:

6. g7xf8N

6. ...+ h8xf8

I had:
1. h4 d5
2. h5 Nd7
3. h6 N(d7)f6
4. xg7 Kd7
5. Rh6 Ne8
6. xf8=N++

--SMQ

« Last Edit: Jul 13^th, 2005, 1:06pm by SMQ »

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Leo Broukhis
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Re: Construct a Game (Chess)
« Reply #4 on: Jul 13^th, 2005, 1:57pm »

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on Jul 13^th, 2005, 1:05pm, SMQ wrote:

eh?

6. ...+ h8xf8

--SMQ

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ThudnBlunder
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Re: Construct a Game (Chess)
« Reply #5 on: Jul 17^th, 2005, 1:14am »

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Correct, SMQ.

Now construct a game which ends with 6. BxR (on c4) mate.

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ThudnBlunder
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Re: Construct a Game (Chess)
« Reply #6 on: Jul 17^th, 2005, 1:16am »

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Correct, SMQ.

Now construct a game which ends with 6. BxR (on c4) mate

AND

what is the shortest game in which only knights are allowed to move?

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THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.

SMQ
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Re: Construct a Game (Chess)
« Reply #7 on: Jul 18^th, 2005, 5:53am »

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what is the shortest game in which only knights are allowed to move?

I get:

hidden:

1. Nf3
2. Nd4
3. Ne6 (or Nc6)
4. Nxd8 Nc6
5. Ne6 Nd8
6. Nxc7++

Black can do pretty much anything for the first three or four moves, so long as he can make 5. ... Nd8.

Still working on the other one; Bishop takes Rook?!