Questions tagged [puzzles]

Often, a puzzle type of problem in which a tactical or positional solution is required, like White/Black to move and win”, in what is often a middlegame of endgame-esqe position. But a puzzle can also be a chess riddle, chess math. or any other non-normal chess problem. Questions about solving puzzle, puzzle apps and websites, how to understand the idea behind a puzzle, etc. are also on-topic.

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2
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0answers
38 views

Chessboard Domination from Opening

From the opening position for black (with no white pieces on the board), what is the fewest number of moves in which we can dominate the entire board, that is, reach a position so that each square is ...
2
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3answers
225 views

Why is Ng5 a draw here?

Was shared a chess position and reached this position. I didn't understand why Ng5 is a draw. I analyzed h6 and h5 as responses but they fall to the same checkmating theme of rook checkmate on h8. ...
11
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2answers
575 views
+100

Chess positions that are easy for humans but near impossible or confusing for computers

I noticed that one student is performing exceptionally well and beyond his level during an online class. I was wondering if there are particular chess positions that I can use during class to find out ...
13
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4answers
3k views

Difference between chess puzzle and chess problem in this episode of The Queen's Gambit?

While a chess puzzle is any puzzle involving aspects of chess, a chess problem is an orthodox puzzle in which one must play and win or draw a game, starting with a certain composition of pieces on the ...
15
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2answers
452 views

How many moves of head start does white need for a guaranteed win?

As we all know, it is not known whether white can always win in chess with optimal play. If, however, white got to make two moves before black made their first move would they be able to win with ...
2
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1answer
177 views

Castling vertically problem

I've once saw a joke chess study about castling vertically. However, I have forgotten who has composed it. I remember that in the positions, all the pawns were locked, but not much else. Does anybody ...
4
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1answer
193 views

I need help understanding this puzzle

With White to play, I have trouble understanding what goes on in this puzzle. First of all, how exactly Kh1 is preferable to Kxh2? I know that Black can give checks after Kxh2, but there really is no ...
6
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5answers
3k views

Mismatch between my puzzle rating and game rating on chess.com

On Chess.com, I recently passed 2000 in the puzzle section. However, in 10 minute games, I can't reach 1600. How do I bridge that gap and increase my game score? Is 10 minutes maybe too short of a ...
5
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1answer
240 views

Is there really a checkmate after 1… Bxf5?

This puzzle on chesstempo caught my eye. We play as Black: [FEN "1r1r3k/7p/5Pb1/p2BpRpq/1pP5/1P1Q4/P5RP/7K w - - 0 1"] 1.Rgxg5 Note: the solution is not quite important here, so no large ...
3
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2answers
84 views

What are some of the best free puzzle rush apps?

I'm looking for a puzzle rush app that's free and does not require a subscription. I tried using the Chess.com app, but there's a limit on the number of times you can play in a day.
5
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1answer
95 views

White to play and win

I don't normally post puzzles but this one is particularly beautiful [title "White to move and win"] [fen "1rR2b1r/3n1k1p/p4npP/1p1q1p2/1R6/BPp2N2/4QPP1/7K w - - 0 1"]
4
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0answers
63 views

How is the perpetual reached on this board?

This puzzle on chesstempo caught my eye. We play as White: [FEN "4Q/4p1bk/1p1qp2p/p1p1n2B/4P/2P3B1/PP4P/6K b - - 0 1"] 1. Nf3 Side Note: The answer is of no importance here, so no spoilers ...
1
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1answer
89 views

Why does White play Qxd4?

This puzzle on chesstempo caught my eye. We play as Black: [FEN "r2qk2r/1p1bppbp/p1np2p/4P2n/Q8/2N2N1P/PPP2PPB/R3KB1R w - - 0 1"] 1. exd6 My solution is: if we play 1... Nb..., a ...
8
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1answer
968 views

Why Qxd5 instead of Rxd5?

This puzzle on chesstempo caught my eye. We play as Black: [FEN "1r1r2k/p4pp/2q/2p1p2P/P1P1Pn/B3NP/4Q2P/R6K w - - 0 1"] 1. Nd5 The White queen is under attack, yet one shall not rush and ...
2
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2answers
247 views

Why Is Black forced to give up the queen in this puzzle?

[FEN "1r4k1/3q3p/p2P2r1/4pNNQ/5p1P/P7/6PK/8 w - - 0 1"] I got this position as a puzzle with White to play. The correct move was 1. Ne7, followed by 1... Qxe7 and 2. dxe7. To me, it seems ...
2
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2answers
246 views

Why does White play g5?

As a total newbie, I've been solving some medium-level problems on chesstempo. This one caught my eye. We play as Black after White's first move. [FEN "6k1/5p1p/5bp1/p7/P1r3PP/2n2N2/4NP2/1R4K1 w -...
2
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3answers
185 views

What's the deep idea behind this puzzle?

I'm trying to get better by doing many tactics puzzles a day. This one I found very interesting. The solution is 1. Qxg7+ Rxg7 2. Rf8+ Rg8 3. Rxg8#. I'm trying to figure out what should have jumped ...
0
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1answer
113 views

lichess puzzle 61124

I am a beginning chess player, and just had a look at lichess puzzle 61124. The following contains spoilers. The solution to the puzzle is supposedly Rd4, then the follow-up move from white is Nb6, ...
4
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4answers
483 views

Why should I expect that black moves Rxd2 after I move Bxe3 in this puzzle?

I've been playing a few puzzles for a couple of days, and I see that often the final move to chessmate is easy to spot, but earlier moves aren't (to me). In this case, for instance, why should I ...
7
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1answer
352 views

Mate in One the Missing King

The post "A mysterious mate in one" made me think of one of my last problems which is also a Mate-in-One with no black King: [Title "White to move and mate in one"] [FEN &...
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3answers
1k views

How to solve this puzzle of Martin Gardner?

Martin Gardner mentioned the following "chess" problem in his column, Mathematical Games, for Scientific American (he got it from Smullyan, who learned about it from a high school math ...
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6answers
5k views

Brainteaser: What is the one thing a queen cannot do that all other pieces can do?

A simple brainteaser - A queen cannot do something all other pieces can do. What is that? April 18 2014 9:15 PM GMT. EDIT: In this context, by "doing" I mean making a move that leads to the desired ...
9
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1answer
839 views

From Mate-in-3 to Mate-in-1

Here is my new problem in 3 steps - the key designates here the piece that moves first in the solution. An other way to reach a mate in one I hope you'll enjoy... [Title "From Mate in 3 to ...
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2answers
2k views

Why does Black play Bh3+?

This puzzle on chesstempo caught my eye (we play as White): [FEN "2b2rk/1p3ppp/r/p1p/3pP1Pq/1P1P/P3BPK/1RB1QR2 b - - 0 1"] 1. Bg4 I reckon Black needs to try skewering the rook with the ...
24
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5answers
3k views

Another Unusual Mate in One

Here is another mate-in-one of my own i.e. a not quite usual one... [title "Mate in one"] [FEN "3b4/R3P3/2kPR1n1/P1p1n3/4K1p1/2Nr4/5p2/1b6 w KQkq - 0 1"] Imagine, you ...
6
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3answers
537 views

Is it better to start without a queen or without any pawns?

I think that this question really can be answered rigorously with good analysis. It is opinion-based, but not completely since some results in this direction can be obtained, and strict and general ...
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2answers
344 views

Why doesn't Black play Bd4?

This puzzle on chesstempo caught my eye (we play as White): [FEN "4q1k/p4pb/r4npp/4P/n2B/5NNP/5PP/Q4RK b - - 0 1"] 1. Nd7 The move I made was e6, and it was the right one. Yet, the Black's ...
4
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2answers
398 views

Why does White play Nc4?

I was solving some problems on chesstempo. This one caught my eye (the White just played Ng2, we play as the Black): [FEN "1k5r/pp4p/5b1p/qPP/N2r1p/P4P/K1Q3PP/2R3R w - - 0 1"] 1. Nb2 I saw ...
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4answers
2k views

Why does this puzzle offer f8=R as better than f8=Q?

Here's a chess puzzle that gave a confusing response. https://chesspuzzle.net/Puzzle/52112 [FEN "5R2/1p6/p4Ppk/3r4/7p/1P6/P7/1K6 w - - 0 1"] 1. Rh8+ Kg5 2. f7 Rf5 3. f8=R If you play f8=Q ...
3
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2answers
230 views

Knights necessary to mate king on large finite board

How many knights would be necessary to mate opponent's king on large finite boards like billion times billion squares? Are they fast enough to surround opponent's king in very limited constant count ...
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2answers
78 views

What makes a chess puzzle hard to solve? [closed]

A couple friends and I built a mobile app (Chess Puzzle Blitz) where we allow people to compete for fun or money solving chess puzzles. We have a pretty large puzzle database but are always adding to ...
5
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2answers
1k views

As Black, what is the fastest way to beat Gnu Chess on easy mode?

This is more of a puzzle. As far as I can ascertain, Gnu-Chess on easy mode always plays the same movesm What is the least amount of moves required to beat Gnu Chess on easy mode? Just to clarify, you ...
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2answers
251 views

Why did Puzzle Rush stop at the second fail?

I was playing the popular Puzzle Rush game on chess.com (3-minute version), and the game stopped when I missed the second puzzle (I had 8 seconds left on the clock). The statement is "Three strikes ...
10
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4answers
501 views

Lichess puzzle 87510: How much calculation would a strong player do before playing Bg4+ when white has a range of (all losing) responses?

Lichess puzzle 87510 has this position. [FEN "r1b1k3/pp4R1/2q3RQ/4p3/5P2/bP2P3/2P1K2P/8 b - - 0 1"] The solution is 1...Bg4+,.after which White has 6 legal moves: 1...Bg4+ 2. Rxg4 Qxh6, ...
2
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1answer
142 views

What am I supposed to learn from this puzzle?

I'm still in the learning stage of playing chess, and was a bit frustrated by this puzzle. https://www.chess.com/puzzles/problem/683680 After my initial attempt failed I tried all the moves I could ...
1
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1answer
123 views

What is this position called? [closed]

I'm working on a problem for this cyber security camp, and we're doing a CTF right now. I have one problem left, and I'm almost certain in relates to chess, so I've come here for advice! Having ...
4
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4answers
245 views

How can I deal with frustration in not being able to solve puzzles in time?

I've been doing 1700-2000 puzzles for some days now. My problem is that when I cannot find a solution within 10 minutes, it literally kills me inside. I just get so frustrated and angry. Theh I just ...
1
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6answers
418 views

Chess Puzzles vs Laziness

Does solving chess puzzles help in overcoming laziness? I lost many games in a tournament because I am too lazy to calculate variations, e.g.: calculating 4-5 moves deep when defending to be sure that ...
15
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11answers
5k views

Where to start with a child learning chess?

From here: What is the best age to learn chess? it seems that consensus is that that kids can start learning chess at almost any age. From around 5 years old they are big enough to learn the names ...
1
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1answer
298 views

Mate-in-10 that Stockfish missed!

Stockfish 10+ at depth 19 evaluated this position as a draw: [Title "White to play and mate in 10"] [FEN "r1b2r2/5pk1/pq2p3/1p5Q/3p1P2/P2Rn1NP/1P4P1/7K w - - 0 28"] However, it is actually checkmate ...
5
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1answer
678 views

In this puzzle, why does white play dxe5?

I came across the following puzzle on lichess (black to play): [Event ""] [Site ""] [Date "????.??.??"] [Round ""] [White ""] [Black ""] [Result "*"] [FEN "1k5r/1pp2q2/p2p2n1/4pp2/2PPP1p1/1P2B1P1/...
7
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1answer
1k views

Chesscademy Tactic: Is my alternative as good as the right answer?

I've been playing with the Chesscademy app for a while, solving some tactics (which I'm not sure is improving my chess, but it's a good puzzle to kill some time). Today I ran into one tactic that I ...
9
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3answers
358 views

Lichess Puzzle 82753: Can white win with a queen and two pawns vs. rook and four pawns?

Lichess puzzle 82753 involves a rook and pawn endgame where white sacrifices their rook to queen a pawn. The final position is the following (with black to move): [FEN "2Q5/6p1/1K3pkp/8/8/4p3/r5PP/8 ...
15
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2answers
4k views

Sherlock Holmes vs Professor James Moriarty, A Game of Shadow-Chess Game Position Reconstruction

The chess scene between Sherlock Holmes and Professor James Moriarty in the movie Sherlock Holmes: A Game of Shadows is one of my favorite movie scenes of all time. What intrigued me even more was ...
3
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1answer
2k views

Chess.com's daily problem-Why doesn't 1…Nf8 win the Nh7?

Shouldn't 1...Nf8 win here too? Why not? [FEN "r2qk2r/pp1nnp1N/4p1pQ/3pP3/4b1PP/P1B5/1PP1B3/R3KR2 b Qq - 0 1"] 1...Nf8??
6
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1answer
180 views

How can white force a quick win here?

This is from a tactics puzzle I encountered today. The given solution was 1. Qxf6 gxf6 2. Bxf6#,” but to me 1... Ne6 seems to halt white in his tracks, even if it does give up a rook. My moves as ...
5
votes
2answers
157 views

Is my solution to this puzzle wrong or a transposition of the official one?

I saw the following puzzle recently in a newspaper: Black to play and win 6rk/6qp/2Bp4/P1pP1p2/3bnP2/6BQ/7P/5R1K w - - 0 1 My proposed solution was 1. ... Nf2+ and the lines I foresaw were ...
1
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4answers
174 views

Puzzle training: rotating tactical themes or exhausting each one?

I agree that many people like it more when chess puzzles do not give a clue on the tactical theme. That is not my question, and I would like to focus on how to study a collection of chess puzzles ...
3
votes
1answer
272 views

Why was this move in a puzzle?

I was on the chess.com app this morning doing the daily puzzle and it wanted me to play Re2. This is questionable to me, because it just delays the mate, but I figured I might have missed something. ...
8
votes
3answers
815 views

Why is this the solution to this puzzle?

[FEN "2r3k1/5pp1/1q1bpn1p/pB1pN3/P2P4/5R2/1P3PPP/3Q2K1 w - - 0 1"] 1. Rxf6 Qc7 2. Rf3 This is a puzzle (and its solution) I found on lichess. But I simply do not see the expected logic of this ...