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Questions tagged [endgame]

Questions relating to the final stages of a game of chess, when only few pieces are left on the board.

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Rook vs Bishop on odd-order board

Suppose White has King and Rook and Black has King and Bishop on a square board of odd size (such as 9x9). Is it generally possible for White to force checkmate?
Lucenaposition's user avatar
0 votes
0 answers
24 views

Training endgames with "royal non-king" pieces

For endgame training with kids, I often let them chase a knight with a queen until "mate". (The poor is thought to be royal.) The same could be done for almost any material constellation, e....
Hauke Reddmann's user avatar
4 votes
1 answer
94 views

How Should This Rook and Pawn Endgame Be Understood?

[Title "Why is Ra1 the only move?"] [fen "2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1"] According to the tablebase at lichess.org, the only drawing move in the above position is 1.Ra1. After ...
Leonard Blackburn's user avatar
19 votes
2 answers
4k views

Can anyone explain this sacrifice?

Can anyone explain this sacrifice ?
user2925716's user avatar
3 votes
0 answers
30 views

How do I get a text response from 4kit Nalimov endgame tablebase

I am trying to get a simple text response from 4kit Nalimov endgame tablebase, using an URL and asking for the answer to a FEN string.
Michael Brown's user avatar
0 votes
1 answer
76 views

Three bishops vs. rook endgame

Can a rook force a draw against three bishops? One of the bishops is on a different coloured square than the other two.
TheSimpliFire's user avatar
3 votes
0 answers
251 views

I have a code in Python which should compute fully optimal moves in an endgame for Black and White player, but it seems that k is playing suboptimally

In this example "'fen': '7Q/8/8/6k1/2K5/8/8/8 w - -', 'moves_to_mate': 9" should be "'fen': '7Q/8/8/6k1/2K5/8/8/8 w - -', 'moves_to_mate': 11" according to Stock-Fish. EDIT The ...
user2925716's user avatar
1 vote
0 answers
143 views

Can you force stalemate with KB/K?

Since the practical answer, pending the old suggestions to rate stalemate different, is "Who cares?", I doubt "official" tablebases exist. (Since winning the KNN/KP endgame depends ...
Hauke Reddmann's user avatar
2 votes
0 answers
113 views

King and three knights vs king․

Is there any recorded official game in history where the king and three knights play against the lone king in the endgame? I know it can be a very rare case where in practice both knights stay until ...
Arsen Vardanyan's user avatar
2 votes
2 answers
99 views

Do endgame tablebases only handle legal positions?

The title is my question for now. I also wonder if similar legality concerns may reduce the number of input FENs as checkmates used as input to the retrograde proofing or construction process. In ...
dbdb's user avatar
  • 162
2 votes
2 answers
97 views

"Simplest" and "least memorization demanding" way/resource to learn endgames [closed]

What is the simplest and "least memorization demanding" way or resource to study endgames? I'm following a course on the essence (most important concepts) of Dvoretsky's endgame manual which ...
ela's user avatar
  • 275
2 votes
1 answer
98 views

Need more clarity on the following chess concepts - planning, strategy, schematic thinking, backward thinking

I'm studying chess middlegame, specifically about planning. I'm trying to broaden my understanding of the terms - Planning, Strategy, Schematic thinking, and Backward thinking.
Arun J's user avatar
  • 1,865
3 votes
1 answer
302 views

Why does the engine evaluate black's position as better here?

I recently played a game as white, that ended in a draw. I thought I had a big advantage at some point, but when analyzing it, the engine says that black was actually in favor ~ -1.1. I was a central ...
d4zed's user avatar
  • 1,197
1 vote
2 answers
196 views

Why hasn't any new endgame theory been developed from the endgame tablebases?

With all 7-man endgame tablebases completed years ago, and the 8-mean endgame tablebases in the works now, why have we not seen new strategies outlined for, say, how to win with rook and two knights ...
prestokeys'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
5 votes
1 answer
183 views

What's the easiest way to hold this 4 vs 3 pawns on same side rook endgame?

After having been under tremendous pressure due to a mistake in the middle game and with only 30s on the clock, I was very relieved to find a way to liquidate into this endgame, which I knew was a ...
Hauptideal's user avatar
  • 6,192
1 vote
1 answer
159 views

Exchanging pieces when up...not this time!

[FEN "8/ppk3pr/2n5/8/8/P7/1P1RK1R1/8 w - - 1 1"] 1. Kf3 Nd8 2. Rg6 Nf7 3. Kf4 Rh4+ 4. Kg3 Rh7 5. Rd5 a6 6. Rf5 Nd6 7. Rc5+ Kb6 8. Rd5 1-0 Played recently. I concluded that simply ganging ...
Hauke Reddmann's user avatar
3 votes
0 answers
115 views

Can previous and continuing research on N-piece tablebases be used toward human theory of chess?

This follows another questions here: What is the status for EIGHT piece endgame tablebases? My answer there was appropriately removed as being question in reaction to that question, well in light of ...
dbdb's user avatar
  • 162
2 votes
2 answers
259 views

Rook endgame book that goes through the strategy of such positions

Consider this position: [FEN "8/R4p2/P4kp1/7p/7P/4K1P1/r4P2/8 w - - 0 1"] 1. Kd4 Rxf2 2. Rc7 Ra2 3. a7 Kf5 4. Kc4 Kg4 ( 4... Ra1 5. Kb5 Rb1+ 6. Kc6 Ra1 7. Kb7 f6 8. a8=Q Rxa8 9. Kxa8 Kg4 ...
Guess601's user avatar
  • 1,200
1 vote
2 answers
155 views

How do I improve my endgame technique?

I have decent endgame technique and recently bought Jesus De La Villa's 100 endgames you must know. How do I shift it closer to top level endgame technique?
MrChessR's user avatar
  • 240
5 votes
4 answers
391 views

Is this position a draw?

I was playing at my local chess club on Sunday and I had the position below as white. Me and my opponent continued for a while before finally agreeing to a draw. When I play it against bots as white ...
Bob's user avatar
  • 49
-1 votes
1 answer
114 views

In a completely lost position do chess engines attempt to bait their opponent into mistakes, or just play for the longest survival?

Essentially, do Chess Engines acknowledge that their opponents might make "flawed" moves? Or do they always assume absolutely perfect play. More specifically, if an engine has a choice ...
Brondahl's user avatar
  • 585
4 votes
1 answer
123 views

What is the key idea for winning with KQ against KBN? (How to break the barrier?)

Mastering winning with KQ versus KR is one of my biggest daydreams. Well, in a few particular cases I was able to checkmate (after reaching Philidor and then capturing the rook), but that was just a ...
Alexander's user avatar
  • 771
5 votes
1 answer
585 views

How can I draw this KPPP-KR endgame?

See Three (3) Pawns and a King vs King and Rook. I consider it one of the most amazing chess endgame puzzles. [Title "White to play and draw"] [fen "8/2k5/2r5/8/4PPP1/5K2/8/8 w - - 0 1&...
Alexander's user avatar
  • 771
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
2 votes
2 answers
205 views

Timeout vs Insufficient Material

This is not a new topic but it did happen in my game at chess.com. I was playing white and played the only legal move h7 and was checkmated on the next move. My question is: What will happen if I just ...
Zuriel's user avatar
  • 9,091
0 votes
1 answer
57 views

Output A List of final positions

I have a .pgn database. I like to extract all of the final positions into a new pgn database. I do not have ay programming skills. What is the best way to do this?
CR43962's user avatar
1 vote
1 answer
136 views

What is the easiest way to win this endgame in a blitz game?

Say you're in a blitz game and you and your opponent both have 45 seconds left. [Title "White to move"] [fen "6k1/3p2pp/p7/1pPq4/1P6/P5RP/6PK/8 w - - 0 45"] My question is how ...
Stockfischer's user avatar
0 votes
1 answer
86 views

How are piece phase values for tapered evaluation/phase calculation calculated?

On the chessprogramming wiki site for tapered evaluation, there is the following code snippet for how engines calculate phase: eval = ((opening * (256 - phase)) + (endgame * phase)) / 256 PawnPhase = ...
wdk23's user avatar
  • 90
0 votes
2 answers
150 views

Stockfish misses mate in 11 with 10 pieces [duplicate]

I fed @HaukeReddmann's "hack" to this scenario [FEN "8/p7/rp6/rp6/pP6/R7/8/K6k w - - 0 1"] to Lichess Stockfish 14, white to move. Up to Depth 77 (after which I gave up waiting), ...
OverLordGoldDragon's user avatar
9 votes
3 answers
3k views

White to play and win - only moving the rook once

[Title "White to play and win - only moving the rook once"] [fen "k7/8/8/8/8/8/8/K1R5 w - - 0 1"] This is an exercise in using the opposition and outflanking from John Hawkins' ...
Brian Towers's user avatar
  • 97.9k
3 votes
3 answers
248 views

What are some good endgame books?

I know some people have asked about general good books or middle game books. But I read someone said that the best way to start learning chess is by studying endgames, so I ask: What are some good ...
SrPatito's user avatar
3 votes
3 answers
222 views

Winning in a KBBvKN endgame: possible or too hard for humans?

Apparently, two bishops and a king can mate a king supported by a lone knight, according to endgame tablebases, but it generally takes more than 50 moves, which is why it seems that one is studying ...
Andreas Tsevas's user avatar
2 votes
1 answer
369 views

A difficult same color Bishop endgame

Is this position a White win or a draw? [Title "Black to move : "] [FEN "3B4/5p1p/4k1p1/2b1P3/8/5P2/1P4PP/5K2 b - - 0 1"]
user35196's user avatar
6 votes
1 answer
224 views

How easy is Q vs. N supposed to be?

Reading the first chapters of Jeremy Silman’s endgame book I breezed through the exercises, as I expected. It starts with KRR vs K and KQ vs. R – even half-asleep I can do this reliably against a ...
11684's user avatar
  • 1,296
1 vote
1 answer
236 views

Checkmate with two bishops of same colour

Is it possible to checkmate King with two bishops of same colour in the endgame?. Is it possible in Chess to get this position in reality? Position: King with Two bishops of same colour V/S King.
Prashant Akerkar's user avatar
21 votes
2 answers
5k views

What is the status for EIGHT piece endgame tablebases?

An earlier question here asked in 2012 about the status of 7-piece tablebases. Today complete 7-piece tables are widely available. So today, what is the status of 8-piece endgame tablebases? How ...
Laska's user avatar
  • 12.1k
11 votes
3 answers
3k views

Why exchange bishop for knight in this endgame?

In this position, Stockfish gives black (me) -8.1 and recommends BxN. 8/5p2/4pkpp/p1n5/Pp6/1Bb1PP2/2PNK2P/8 b - - 7 28 Instead I played Kf5 and the evaluation plummets to -2.1. My understanding was ...
Steve Bennett's user avatar
3 votes
1 answer
254 views

Mate-in-N problems where N scales indefinitely with board size

Motivation - Long range mating patterns This question is inspired by my recent interest in infinite chess and the post on MathOverflow Checkmate in ω moves?. Since my chess endgame skills are quite ...
Andreas Tsevas's user avatar
1 vote
0 answers
103 views

Which theoretically drawn endings have high difference in material count?

Ending of King+Queen vs. King+Pawn is usually draw when pawn is on seventh rank of rook or bishop file, given that defending king is in front of it and attacking king is not close enough to force ...
Matija Sirk's user avatar
  • 2,428
1 vote
2 answers
123 views

Is Stockfish reliable as far as draw conclusions is concerned?

I just stumbled across this endgame : https://www.365chess.com/game.php?back=1&gid=134885&m=24 Basically, Black has only a Queen, White has Queen and Rook. Black resigns. But here comes the ...
Hugues's user avatar
  • 111
3 votes
0 answers
134 views

Analysis of positions with only one king on the board?

Endgame positions with just one king on the board may be very rich. Has any analysis of simple positions done? Maybe even tablebases for small numbers of pieces? There are some existing problems with ...
Laska's user avatar
  • 12.1k
4 votes
2 answers
378 views

The simplest approach for king & pawn vs king & pawn endgames

I'm trying to study king & pawn endgames, where both sides have one or multiple pawns remaining. So far it seems really puzzling to me - while I know the basic principles of opposition and ...
Eenoku's user avatar
  • 143
2 votes
1 answer
144 views

King + 2 Knights vs King + Pawn - win rate at master level at standard time controls?

After 80 moves of his game against MVL, Carlsen reached this theoretically winning endgame position, which ended in a draw: [Title "Carlsen - MVL, Superbet Rapid & Blitz Poland, 2023"] [...
Brian Towers's user avatar
  • 97.9k
2 votes
3 answers
1k views

Bishop and Rook versus Queen

Is a bishop and rook better than a queen in most endgames with pawns still on the board? I'm aware that bishop and rook is technically 1 point of material less than a queen, however, would the fact ...
Hacker's user avatar
  • 123
4 votes
2 answers
929 views

Why didn't Laurent Fressinet-Alexandra Kosteniuk (2007) end in a draw?

Game is available here. The last 116 moves of that game was R+B vs. R, which is a theoretical draw that is hard for a human to defend. Fressinet eventually faltered and resigned when he was about to ...
Allure's user avatar
  • 27.7k
1 vote
1 answer
188 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
2 votes
2 answers
158 views

To call this a "rook-pawn endgame" ... just a typo?

In this chess.com tutorial, the caption describes this as a rook-pawn endgame. It seems likely to me this is a typo. But being a noob, I wanted to be sure it wasn't a reference to some well known ...
Stewart's user avatar
  • 227
3 votes
1 answer
349 views

How do I create endgame tablebases?

What software can I use to create and verify endgame databases? I want to create my own tablebases from scratch on my PC - I'm specifically looking for open-source software that I can modify to ...
Someone211'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

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