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Questions tagged [rooks]

Questions relating to the Rook.

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How can I implement a Magic Bitboard Generator in Java?

I am currently working on making a Chess Engine in Java and have tried to implement a Magic Number Generator. However, the generator always seems to get stuck on a certain index and can't get past it. ...
Dhruv's user avatar
  • 1
2 votes
1 answer
96 views

I would like to find out the purposes of the move 9... Rf7 in the chess game attached

I would like to find out the purposes of the move 9... Rf7 in the chess game attached. [FEN ""] [Event "AlphaZero vs Stockfish Games: Game 1"] [Site "https://lichess.org/study/...
user38326's user avatar
3 votes
1 answer
693 views

Two Rooks v/s Queen End game

Is Two Rooks, King v/s Queen, King in the end game is a theoritical draw in chess? No player can win by any tactics?
Prashant Akerkar's user avatar
2 votes
2 answers
127 views

Queen corner round trip

In "The Ink War", Hendriks "complained" that in some game, during the Zukertort manouvre Q-e8-h8-a1-h1 the bQ didn't start at a8. Do you know a game with a Q corner round trip in ...
Hauke Reddmann's user avatar
4 votes
2 answers
2k views

Only Rook endgame!

Is it possible to win (black or white) in this position? [fen "2k5/5R2/8/4K3/r7/8/8/8 w - - 0 1"]
ShBh's user avatar
  • 151
12 votes
7 answers
4k views

Why is it better to control a vertical/horizontal than diagonal?

I'm trying to truly understand why Rooks are more valuable than Bishops. Yes, they control more squares. But why? I understand that a rook forms a line that pieces cannot pass through, and this is ...
Alec's user avatar
  • 247
1 vote
1 answer
189 views

Can a rook and King checkmate a bare King without zugzwang?

Can a rook and a king force a checkmate against a bare king that starts in the center if the opponent was allowed to pass?
blademan9999's user avatar
4 votes
2 answers
2k views

What happens in a King-Rook vs King-Bishop with a perfect play in a no pawn endgame?

Suppose both the kings are left in a fairly neutral positions with just rook at one side and a bishop at the other side. What is the outcome if both the sides play correctly? Can a side with only ...
iammilind's user avatar
  • 724
11 votes
4 answers
3k views

Bishop and Knight exchange with opponent's Rook and pawn

Chess games statistics In Chess, Are there advantages or disadvantages of exchanging your Bishop + Knight with opponent's Rook and Pawn in middle game? Knight 3 points Bishop 3 points Vs Rook 5 points ...
Prashant Akerkar's user avatar
5 votes
1 answer
151 views

Are bishops and knights more powerful than rooks on an 8x8x8 board given these rules?

Let's say that on an 8x8x8 board rooks can move any number of spaces, only moving through one dimension at a time. Bishops move the same number of spaces in exactly 2 dimensions at a time. Knights ...
Anders Gustafson's user avatar
2 votes
0 answers
113 views

I don't understand why this scenario is checkmate. The black rook cannot move, as it's protecting black king. Can someone explain? See photo [duplicate]

So in this scenario the White Queen put the black king in check, which was then blocked by the black rook. So, how is it that the black queen moving to the position of F1 is considered checkmate? The ...
Braxton Wheeler's user avatar
1 vote
2 answers
155 views

Why is this rook move a mistake?

Recently I was playing a game on chess.com (300 rating) and after the game the engine showed that this move was a mistake, losing two points of material. [FEN ""] 1. e4 a5 2. d4 h5 3. f3 f6 ...
Gage McMullen's user avatar
4 votes
1 answer
183 views

Ulf Andersson vs Robert Huebner 1981 rook endgame: the mistake here is Rd8 right?

Click here for engine re position below 8/3r4/1kp2p1p/ppRp2pP/3PP1P1/3K1P2/PP6/8 w - - 0 1 From hanging pawns in The Principle of Two Weaknesses in the Endgame at 9:02 (the game is discussed from 0:...
BCLC's user avatar
  • 2,050
2 votes
1 answer
220 views

akiba rubinstein vs alexander alekhine 1911 rook endgame: the mistake here is Rxb5 right?

Current 4 follow-up questions for the answer (currently just 1 answer): A - engine says Kf5 is a blunder. Did you mean Kf6? B - engine says Kf5 Re7 is a blunder. Did you mean Kf5 Rd7? Kf5 Re7 blunders ...
BCLC's user avatar
  • 2,050
12 votes
2 answers
2k views

Two Rooks vs Queen endgame

Is an endgame with Queen and King vs. two Rooks and King a win for the Queen, a win for the two Rooks, or a draw?
Prashant Akerkar's user avatar
3 votes
2 answers
486 views

Rook+Knight Endgame-Play For Checkmate?

I found myself in this position as Black during a recent endgame situation with White to move. [FEN "8/7k/2R4p/2p3p1/2N2p2/P4PnP/1P2r1K1/8 w - - 4 43"] What is a good way to approach ...
TrancendentalObject's user avatar
1 vote
1 answer
371 views

How to store moves for a magic bitboard system?

I am currently trying to implement magic bitboards into my chess engine. Let's just talk about rooks here. Given a square, what I can currently do is: -Calculate the sliding moves on an empty board. ...
Kieran Montgomery's user avatar
4 votes
1 answer
145 views

Trapped Rooks: Does Stockfish penalize more if the king can't castle temporarily?

In this talkchess thread, they discuss trapped rooks and castling rights. In post #5, user @Lyudmil Tsvetkov posted: I would give at least some 10-15cps for temporary prevention of castling. Here is ...
ChessLover's user avatar
0 votes
2 answers
891 views

How can I save this game?

I was playing a blitz game and the time control was 2m+1s. The end game was KQ vs KR and I (with KQ) lost on time as it took roughly 2 seconds for me to make a move. I would like to learn a lesson: in ...
Zuriel's user avatar
  • 9,091
4 votes
4 answers
2k views

Not able to use rooks properly

While playing a game, I observe that I am not able to use my rooks properly. The reason is that I am not able to bring them out earlier as they occupy the corner position. This gives a lead to the ...
Bitthal Maheshwari's user avatar
2 votes
1 answer
106 views

Queen against rook-drawn and won endgames [duplicate]

I played a game in which I had a queen against a rook but it seemed that my opponent’s king could protect his rook, and there were no pawns on the board. In the end, I drew the game. Are such games be ...
kryomaxim's user avatar
  • 121
1 vote
2 answers
142 views

Why move the queen’s rook to defend d-file instead of king’s rook?

In this position, why is it better to move the queen’s rook to defend the d-file instead of the king’s rook? Moving the king’s rook to the d-file becomes more challenging. Is it important to leave ...
Marco V's user avatar
  • 255
5 votes
3 answers
695 views

How should one decide which rook to put on a central file? [duplicate]

How should one decide which rook to put on a central file? I usually just move the one which is closer to the file, unless there are weak squares in my position that one rook is defending. In ...
Smich's user avatar
  • 161
12 votes
3 answers
4k views

Can I place my rooks upside down at the beginning of the game?

Numerous times I’ve read that it’s illegal to use an upside down rook to represent a promoted queen because “it’s still a rook”. Does that imply that I can begin the game with my rooks upside down? ...
Laska's user avatar
  • 12.1k
8 votes
2 answers
2k views

What is the most suitable position for a bishop here?

Recently I played a game with White whose link is: https://lichess.org/pAoAUp4O/white#42 and reached this position: I am having a hard time finding why the moves I played next (22. Rxe8+? Rxe8 23. ...
Maths64's user avatar
  • 2,227
0 votes
5 answers
5k views

Is the exchange of a rook for two minor pieces really worth it?

I recently played a game with my friend I wish I had memorized the entire game, but, unfortunately, my memory isn’t too good. In summary, I was in a really tight position, and playing as black. I had ...
Programming Champion's user avatar
5 votes
1 answer
697 views

What are the shortest possible games with a) 20 Bishops, b) 20 Knights, and c) 20 Rooks?

The fastest move sequence to reach 18 queens is known. Similarly, what are the shortest possible games with a) 20 Bishops, b) 20 Knights, and c) 20 Rooks?
Rewan Demontay's user avatar
0 votes
1 answer
311 views

Why didn't the White queen take the Black rook here?

I was seeing this match on chess.com. [FEN ""] [StartPly "18"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. O-O d6 5. d3 Bg4 6. c3 a6 7. Nbd2 Nf6 8. Qb3 Qe7 9. Qxb7 Nd8 10. Qb3 Be6 11. Qa4+ Bd7 12. Qc2 g6 13. ...
USer345738380's user avatar
2 votes
1 answer
522 views

What kind of semi-open file is better for your rook?

What kind of semi-open file is better for your rook? One where your pawn is on it, or one where the opponents pawn is on?
Marco V's user avatar
  • 255
26 votes
2 answers
4k views

Why underpromote in this KNNP-KR endgame?

In the position below, I'm promoting my pawn. The app says promoting to a Queen is incorrect, but a Rook is correct? In this setup it doesn't make sense. [FEN "8/1P6/3N4/8/8/3k4/r7/4KN2 w - - 0 1"] ...
Frank's user avatar
  • 269
3 votes
4 answers
1k views

Is a queen for two rooks reasonable in this position? What are the disadvantages?

Is Qxe8 reasonable? I always wanted to trade off a queen against two rooks and the engine likes this idea, but am I leaving my pawns unprotected in this situation? It would be hard to protect those ...
Superluminal's user avatar
  • 1,993
10 votes
1 answer
1k views

When is a bishop stronger than a rook?

Usually the rook is stronger than the bishop. Are there situations (and obviously I'm not assuming equal material) in which the latter is stronger?
Vincenzo Oliva's user avatar
3 votes
2 answers
358 views

Why wouldn't black take the rook here?

This puzzle starts on move 19 of the below game. In order to get the puzzle correctly, it seems that you have to believe that black would not take the rook with 20.. gxf6. But I don't understand why ...
Xodarap's user avatar
  • 133
12 votes
1 answer
8k views

Is always possible to win King + Queen vs. King + Rook?

Does every situation (except where the Queen team gets mated or the Queen is captured immediately) result in a win for the Queen team? Or can the Rook team, by perfect play, force a stalemate?
Superluminal's user avatar
  • 1,993
1 vote
5 answers
397 views

Is this rook sacrifice intended?

rnbqk2r/p1pp1pbp/1p2p1pn/4P3/2BP4/5Q2/PPP2PPP/RNB1K1NR w KQkq - 0 1 Is the rook sacrifice intended by the black to trap white's queen or is it just a misplayed move?
prog_SAHIL's user avatar
11 votes
12 answers
18k views

Why is the rook worth 5 points while the bishop is only worth 3?

Why is the rook worth 5 points while the bishop is only worth 3? Rooks only move straight, but bishops only move diagonally. Is there something that makes moving straight advantageous to moving ...
clickbait's user avatar
  • 689
2 votes
3 answers
2k views

Is castling a king move or a rook move?

Most computer chess games consider castling to be a king move. You click on the king and it shows an option to castle. What do the FIDE's rules say about this though? Is castling a king move, a rook ...
clickbait's user avatar
  • 689
2 votes
3 answers
3k views

When is a good time to double rooks?

When analysing my games with an engine (Stockfish 8) I found that I quite frequently miss when the engine thinks it would be a good idea/time to move a rook to the second rank to double up (I guess). ...
Ostkontentitan's user avatar
11 votes
3 answers
3k views

Is "Rdxd2" algebraic chess notation valid?

Is the algebraic notation Rdxd2 valid? If there is a problem with this notation, then how can it be corrected?
micsthepick's user avatar
1 vote
2 answers
3k views

Can you checkmate with rook vs knight? [duplicate]

Is it possible to checkmate if all you have is a rook and your opponent only has a knight? If both of you play without mistakes or blunders?
Ainvox's user avatar
  • 51
3 votes
1 answer
1k views

Moving into check?

I will try to be specific. I was playing a game, and the only piece my opponent could move was their king. It was taking forever for me to checkmate the king. I had a queen, two rooks, and a few pawns,...
Michael's user avatar
  • 41
1 vote
1 answer
179 views

Is there a name for a rook moving in front of the pawn on a particular file?

I have tried to make a diagram but cannot figure out how to do the FEN, sorry. In a game that I played online somebody has done a rather strange thing, they moved their rook in front of the pawn on ...
v010dya's user avatar
  • 113
2 votes
2 answers
494 views

Why sacrifice the rook?

[Title "White to move"] [FEN "1r3rk1/1p4bp/p2p1q2/2pPn1p1/B1PnRp2/PPN2P1P/2QB2P1/3R2K1 w - - 5 27"] This is a diagram from the game between Del Rey, Diego and Efimenko, Zahar on the Zalakaros Chess ...
Santiago Estupiñán's user avatar
0 votes
1 answer
289 views

Rook and knight used together within the same move - legal?

This is my first question on chess beta and I don't know if I'm insane or if the cpu is broken. So I was playing chess against a CPU on the iPhone with the app 3D Chess Game, and the CPU (playing ...
rappatic's user avatar
  • 129
8 votes
3 answers
365 views

Trying to locate a historical game in which the win involves sacrificing two rooks

I can't remember whether White won or Black won, but I've been wondering for years where I saw this game. I remember toward the end, only heavy pieces and pawns were left, and the winner sacrificed ...
Daniel's user avatar
  • 6,172
9 votes
7 answers
2k views

How defend against rooks in 7th rank?

I find it hard to defend against rooks placed in 7th rank. What are the possible defense options? Please share your knowledge. [FEN "r4rk1/p1pRR1pp/1p6/8/8/P6P/1P3PP1/6K1 w - - 0 1"] 1.Rxg7+ Kh8 2....
pbu's user avatar
  • 972
5 votes
5 answers
2k views

Is the bishop pair and a pawn equivalent to knight and a rook?

In theory, rook (5) + knight (3) = 8 points. And bishop (3.25) + bishop (3.25) + pawn (1) = 7.5 points. For example, do you think black is better in the following scenario or do you believe white ...
Nordlandia's user avatar
2 votes
1 answer
74 views

in silman's book, question about open files and global exchange

In a book from J.Silman, I found this position: [FEN "r1qr2k1/p2bppbp/3p2p1/1p1P4/3B1P2/1B3Q1P/PPP3P1/3RR1K1 b - - 0 17"] 1... Re8 2. c3 h5 * It deals with the rooks, white managed to semi-open ...
lolveley's user avatar
  • 459
1 vote
2 answers
4k views

Is it the right choice to lose the queen for two rooks?

Is it the right choice to lose the queen for two rooks for this situation?
Rasa Mohamed's user avatar
2 votes
1 answer
563 views

What is "Rook Box" and its use?

When I once watched a chess game on television, one player use a trick named "Rook Box" to draw a game. I didn't understand its move and so, I want to know what is "Rook Box" in chess. I know it's a ...
Shaishav Jogani's user avatar