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Chess with symmetric move-square

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Chess with symmetric move-square

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3

$begingroup$

Every move in chess involves moving a piece to a square. Let us call this square the "move-square" for that turn.

In the following, the move-square of the black player must be symmetrical (over the obvious center-horizontal) to the move-square by white on that turn. The requirements may be met with a white move, but an additional valid move for black must be shown to exist. This extra move is not included when counting the number of moves taken to reach one of the below conditions.

What is the shortest sequence (with symmetrical move-squares) resulting in a Rook x Rook capture?

Resulting in a Knight x Rook capture?

Resulting in Queen x Bishop capture?

chess checkerboard knight-moves

share|improve this question

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Hi @ArtemLugin, welcome to Puzzling SE! (Take the tour if you haven't already!) Can you clarify if the same piece has to occupy black's move-square as white's, or can any piece count? For example, would something like 1. e4 e5 2. Be2 Ne2 be acceptable? Or is only Be7 by black possible?
  $endgroup$
  – PiIsNot3
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @PiIsNot3 Its doesn't have to be the same piece. Only the corresponding symmetric square. Assuming you mean Ne7 not Ne2 yes, thats acceptable
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Thanks for the welcome
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  I can't accept your edit as it contains improper grammar and is inaccurate. I'm open to suggestions and edits to improve understandability
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  I think the question is clear enough, perhaps some terminology can be fixed but at least I can tell what’s being asked
  $endgroup$
  – PiIsNot3
  3 hours ago
  

  
  
  
  

 | 
show 4 more comments

3

$begingroup$

Every move in chess involves moving a piece to a square. Let us call this square the "move-square" for that turn.

In the following, the move-square of the black player must be symmetrical (over the obvious center-horizontal) to the move-square by white on that turn. The requirements may be met with a white move, but an additional valid move for black must be shown to exist. This extra move is not included when counting the number of moves taken to reach one of the below conditions.

What is the shortest sequence (with symmetrical move-squares) resulting in a Rook x Rook capture?

Resulting in a Knight x Rook capture?

Resulting in Queen x Bishop capture?

chess checkerboard knight-moves

share|improve this question

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Hi @ArtemLugin, welcome to Puzzling SE! (Take the tour if you haven't already!) Can you clarify if the same piece has to occupy black's move-square as white's, or can any piece count? For example, would something like 1. e4 e5 2. Be2 Ne2 be acceptable? Or is only Be7 by black possible?
  $endgroup$
  – PiIsNot3
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @PiIsNot3 Its doesn't have to be the same piece. Only the corresponding symmetric square. Assuming you mean Ne7 not Ne2 yes, thats acceptable
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Thanks for the welcome
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  I can't accept your edit as it contains improper grammar and is inaccurate. I'm open to suggestions and edits to improve understandability
  $endgroup$
  – Artem Lugin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  I think the question is clear enough, perhaps some terminology can be fixed but at least I can tell what’s being asked
  $endgroup$
  – PiIsNot3
  3 hours ago
  

  
  
  
  

 | 
show 4 more comments

$begingroup$

Every move in chess involves moving a piece to a square. Let us call this square the "move-square" for that turn.

In the following, the move-square of the black player must be symmetrical (over the obvious center-horizontal) to the move-square by white on that turn. The requirements may be met with a white move, but an additional valid move for black must be shown to exist. This extra move is not included when counting the number of moves taken to reach one of the below conditions.

What is the shortest sequence (with symmetrical move-squares) resulting in a Rook x Rook capture?

Resulting in a Knight x Rook capture?

Resulting in Queen x Bishop capture?

chess checkerboard knight-moves

share|improve this question

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

share|improve this question

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 3 hours ago

Brandon_J

3,563244

edited 3 hours ago

Brandon_J

3,563244

asked 4 hours ago

Artem LuginArtem Lugin

286

New contributor

Artem Lugin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 4 hours ago

Artem LuginArtem Lugin

286

2 Answers
2

active

oldest

votes

2

$begingroup$

Partial (will update as I go)

R x R (3rd attempt)

I got it! 5 moves:

1. a4 a5 2. Ra3 Ra6 3. Rh3 Rh6 4. d3 d6 5. Rxh6 Apronus link

The h3 square is covered by the black bishop.

Note that 5 is the absolute minimum number of moves needed, since it takes at least 3 moves to make the rooks attack each other, and they can’t directly take each other on the 4th move.

R x R (2nd attempt)

I found a 6 move solution:

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. c3 Nc6 5. Rb5 Nb4 6. cxb4 Rxb5

Apronus link

R x R (1st attempt)

This question demonstrates a 7 move sequence, but since we don’t have to copy each others’ moves, only the squares, we can also do the more interesting


1. a4 a5 2. Ra3 Ra6 3. Rc3 Nc6 4. e4 Ne5 5. Rc5 Nc4 6. c3 Rc6 7. Bxc4 Rxc5

Apronus link

share|improve this answer

edited 2 hours ago

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You're on the right track. There are several ways to get it in 5 moves with white capturing the piece
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The question you linked was the inspiration. Thought I'd spice it up. a-Rook takes h-rook looks very interesting as well
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I don’t see any alternative for black here....help please.
  $endgroup$
  – Rewan Demontay
  2 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Great job! Marked as correct
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  

add a comment | 

3

$begingroup$

Under your rules, here are my answers.

Rook X Rook:

1. g4 g5 2. h4 h5 3. gxh5 gxh4 4. h6 h3 5. h7 h2 6. hxg8=R hxg1=R 7. Rgxh8

Proof Game:

Apronus

Knight X Rook:

1. Nf3 Nf6 2. Nh4 Nh5 3. Ng6 Ng3 4. Nxh8

Proof Game:

Apronus

Queen X Bishop:

1. e4 e5 2. d4 d5 3. Bg5 Bg4 4. Qxg4

Proof Game:

Apronus

UPDATE: Do you mean improve my Rook X Rook game like this?

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. Rxb6

Proof Game:

https://www.apronus.com/chess/pgnviewer/?m=a4_a5_Ra3_Ra6_Rb3_Rb6_Rxb6

share|improve this answer

edited 2 hours ago

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The game only has to end with one side capturing. So therefore it is correct.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Fixed. Your point has been well recievedl
  $endgroup$
  – Rewan Demontay
  3 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  True, but generally any variant will suffice.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Oooh, I found one I really like. Looks kind of flashy IMO: 1.e4 e5 2. Qe2 Be7 3. Qb5 Bb4 4. Qxb4
  $endgroup$
  – Brandon_J
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  The shortest is 5 white moves
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  

 | 
show 10 more comments

Your Answer

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2

$begingroup$

Partial (will update as I go)

R x R (3rd attempt)

I got it! 5 moves:

1. a4 a5 2. Ra3 Ra6 3. Rh3 Rh6 4. d3 d6 5. Rxh6 Apronus link

The h3 square is covered by the black bishop.

Note that 5 is the absolute minimum number of moves needed, since it takes at least 3 moves to make the rooks attack each other, and they can’t directly take each other on the 4th move.

R x R (2nd attempt)

I found a 6 move solution:

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. c3 Nc6 5. Rb5 Nb4 6. cxb4 Rxb5

Apronus link

R x R (1st attempt)

This question demonstrates a 7 move sequence, but since we don’t have to copy each others’ moves, only the squares, we can also do the more interesting


1. a4 a5 2. Ra3 Ra6 3. Rc3 Nc6 4. e4 Ne5 5. Rc5 Nc4 6. c3 Rc6 7. Bxc4 Rxc5

Apronus link

share|improve this answer

edited 2 hours ago

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You're on the right track. There are several ways to get it in 5 moves with white capturing the piece
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The question you linked was the inspiration. Thought I'd spice it up. a-Rook takes h-rook looks very interesting as well
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I don’t see any alternative for black here....help please.
  $endgroup$
  – Rewan Demontay
  2 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Great job! Marked as correct
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

Partial (will update as I go)

R x R (3rd attempt)

I got it! 5 moves:

1. a4 a5 2. Ra3 Ra6 3. Rh3 Rh6 4. d3 d6 5. Rxh6 Apronus link

The h3 square is covered by the black bishop.

Note that 5 is the absolute minimum number of moves needed, since it takes at least 3 moves to make the rooks attack each other, and they can’t directly take each other on the 4th move.

R x R (2nd attempt)

I found a 6 move solution:

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. c3 Nc6 5. Rb5 Nb4 6. cxb4 Rxb5

Apronus link

R x R (1st attempt)

This question demonstrates a 7 move sequence, but since we don’t have to copy each others’ moves, only the squares, we can also do the more interesting


1. a4 a5 2. Ra3 Ra6 3. Rc3 Nc6 4. e4 Ne5 5. Rc5 Nc4 6. c3 Rc6 7. Bxc4 Rxc5

Apronus link

share|improve this answer

edited 2 hours ago

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You're on the right track. There are several ways to get it in 5 moves with white capturing the piece
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The question you linked was the inspiration. Thought I'd spice it up. a-Rook takes h-rook looks very interesting as well
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I don’t see any alternative for black here....help please.
  $endgroup$
  – Rewan Demontay
  2 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Great job! Marked as correct
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

Partial (will update as I go)

R x R (3rd attempt)

I got it! 5 moves:

1. a4 a5 2. Ra3 Ra6 3. Rh3 Rh6 4. d3 d6 5. Rxh6 Apronus link

The h3 square is covered by the black bishop.

Note that 5 is the absolute minimum number of moves needed, since it takes at least 3 moves to make the rooks attack each other, and they can’t directly take each other on the 4th move.

R x R (2nd attempt)

I found a 6 move solution:

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. c3 Nc6 5. Rb5 Nb4 6. cxb4 Rxb5

Apronus link

R x R (1st attempt)

This question demonstrates a 7 move sequence, but since we don’t have to copy each others’ moves, only the squares, we can also do the more interesting


1. a4 a5 2. Ra3 Ra6 3. Rc3 Nc6 4. e4 Ne5 5. Rc5 Nc4 6. c3 Rc6 7. Bxc4 Rxc5

Apronus link

share|improve this answer

edited 2 hours ago

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

$endgroup$

share|improve this answer

edited 2 hours ago

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

answered 3 hours ago

PiIsNot3PiIsNot3

1,824125

3

$begingroup$

Under your rules, here are my answers.

Rook X Rook:

1. g4 g5 2. h4 h5 3. gxh5 gxh4 4. h6 h3 5. h7 h2 6. hxg8=R hxg1=R 7. Rgxh8

Proof Game:

Apronus

Knight X Rook:

1. Nf3 Nf6 2. Nh4 Nh5 3. Ng6 Ng3 4. Nxh8

Proof Game:

Apronus

Queen X Bishop:

1. e4 e5 2. d4 d5 3. Bg5 Bg4 4. Qxg4

Proof Game:

Apronus

UPDATE: Do you mean improve my Rook X Rook game like this?

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. Rxb6

Proof Game:

https://www.apronus.com/chess/pgnviewer/?m=a4_a5_Ra3_Ra6_Rb3_Rb6_Rxb6

share|improve this answer

edited 2 hours ago

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The game only has to end with one side capturing. So therefore it is correct.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Fixed. Your point has been well recievedl
  $endgroup$
  – Rewan Demontay
  3 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  True, but generally any variant will suffice.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Oooh, I found one I really like. Looks kind of flashy IMO: 1.e4 e5 2. Qe2 Be7 3. Qb5 Bb4 4. Qxb4
  $endgroup$
  – Brandon_J
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  The shortest is 5 white moves
  $endgroup$
  – Artem Lugin
  2 hours ago
  

  
  
  
  

 | 
show 10 more comments

3

$begingroup$

Under your rules, here are my answers.

Rook X Rook:

1. g4 g5 2. h4 h5 3. gxh5 gxh4 4. h6 h3 5. h7 h2 6. hxg8=R hxg1=R 7. Rgxh8

Proof Game:

Apronus

Knight X Rook:

1. Nf3 Nf6 2. Nh4 Nh5 3. Ng6 Ng3 4. Nxh8

Proof Game:

Apronus

Queen X Bishop:

1. e4 e5 2. d4 d5 3. Bg5 Bg4 4. Qxg4

Proof Game:

Apronus

UPDATE: Do you mean improve my Rook X Rook game like this?

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. Rxb6

Proof Game:

https://www.apronus.com/chess/pgnviewer/?m=a4_a5_Ra3_Ra6_Rb3_Rb6_Rxb6

share|improve this answer

edited 2 hours ago

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The game only has to end with one side capturing. So therefore it is correct.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Fixed. Your point has been well recievedl
  $endgroup$
  – Rewan Demontay
  3 hours ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  True, but generally any variant will suffice.
  $endgroup$
  – Rewan Demontay
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Oooh, I found one I really like. Looks kind of flashy IMO: 1.e4 e5 2. Qe2 Be7 3. Qb5 Bb4 4. Qxb4
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  – Brandon_J
  2 hours ago
  

  
  
  
  


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  The shortest is 5 white moves
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  – Artem Lugin
  2 hours ago
  

  
  
  
  

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$begingroup$

Under your rules, here are my answers.

Rook X Rook:

1. g4 g5 2. h4 h5 3. gxh5 gxh4 4. h6 h3 5. h7 h2 6. hxg8=R hxg1=R 7. Rgxh8

Proof Game:

Apronus

Knight X Rook:

1. Nf3 Nf6 2. Nh4 Nh5 3. Ng6 Ng3 4. Nxh8

Proof Game:

Apronus

Queen X Bishop:

1. e4 e5 2. d4 d5 3. Bg5 Bg4 4. Qxg4

Proof Game:

Apronus

UPDATE: Do you mean improve my Rook X Rook game like this?

1. a4 a5 2. Ra3 Ra6 3. Rb3 Rb6 4. Rxb6

Proof Game:

https://www.apronus.com/chess/pgnviewer/?m=a4_a5_Ra3_Ra6_Rb3_Rb6_Rxb6

share|improve this answer

edited 2 hours ago

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

$endgroup$

share|improve this answer

edited 2 hours ago

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

answered 3 hours ago

Rewan DemontayRewan Demontay

57615

answered 3 hours ago

Rewan DemontayRewan Demontay

57615