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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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 ...
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1answer
102 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 ...
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120 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 ...
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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 ...
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1answer
186 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 ...
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1answer
573 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/...
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1answer
161 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 ...
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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??
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3answers
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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 ...
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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 ...
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226 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 ...
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446 views

What is White's motivation to give up the Queen?

I received the following tactics puzzle on lichess.org. Even though, I ended up solving it correctly, I am still not clear about the move 2. Ng5, because this loses the Queen. What prevents 2. Qe2, ...
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118 views

Position-jugdment problems simulating actual play

I'm interested in collections of chess problems where we are not told beforehand what is happening in the positions presented, but we have to decide by ourselves, whether something clear exists (a ...
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385 views

Is it better to start without 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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217 views

How many different knight's tours are there?

How many solutions does the Knight’s Tour puzzle have when the knight first moves from square a1, through all squares (on each square once), and return back to a1? Please give some solutions. Also, ...
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1answer
128 views

At what level would a player be able to correctly analyze how …a5 is superior to …Bc5 if LiChess puzzle 94536 arose in a tournament? [closed]

LiChess puzzle 94536 (from this game) begins with this position with black to play: [fen "r1b2rk1/ppq1n1pp/3p4/3Ppp2/1bP5/3B1N2/1B1P1PPP/R2QR1K1 b - - 1 13"] The fork 1...e4 is obvious, then white ...
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1answer
97 views

A question on a puzzle on chess.com

I am a beginner in chess. I am playing a puzzle on chess.com and the puzzle is like this: White to move [FEN "r4rk1/p4p2/1p2p2p/2p1P3/3p1q1n/1P1PR1N1/P3QP2/R4K2 w - - 0 2"] 1. Re4 Why is this the ...
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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, ...
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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 ...
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1answer
240 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. ...
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1answer
493 views

Doubt about best move in lichess.org training puzzle

In this puzzle, https://lichess.org/training/61639, in this position: 1k2n1rr/1b4q1/1p1p1p2/1PpPpQ2/2P1PnN1/2N4P/R5PK/R2B4 b - - 10 33 the engine says that the best move for black is Rh5, I think it ...
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138 views

Could chess puzzles change with the introduction of stronger engines?

Something I've noticed is even older chess puzzles never seem to age, somehow they even seem more masterful and demanding then the puzzles created today, but what if the solution for a puzzle is ...
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Rearrange chess diagrams (from an opening) in order. Useful as a puzzle?

Here is an example https://chess-tst.000webhostapp.com/chess.html The task is to rearrange the diagrams in order (use drag&drop). Do you think this activity could be useful for exploring and ...
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210 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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3answers
4k views

What is the best way to solve chess puzzles?

Doing puzzles at lichess.org I stuck at raiting 1750 +- 50. I cant really go over 1800. So what are the first things one should check by solving puzzles? Are there some tricks how to solve puzzles?
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320 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 ...
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1answer
165 views

Why doesn't 1.fxe4 Nf6 work for black in this puzzle?

I was solving puzzles and I failed this one. The correct answer was fxe4 fxe4 Bxh5+. Why can the knight not just move to f6 and be safe there? fxe4 Nf6 exd5 fxd5 is in my opinion more preferable for ...
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1answer
163 views

Is today's chess.com daily puzzle a draw (as hinted at in the puzzle title)?

Today's daily puzzle on chess.com is called Desperation Draw: White to move [FEN "r5k1/P4ppp/8/8/p1p1P3/4KP2/2P3PP/5R2 w - - 0 1"] 1. Rb1 Rf8 2. Rb8 * One of the commentators asked: What draw? ...
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156 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 ...
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480 views

Reviewing Chess Tactics Puzzles

Is there somewhere online I can play chess tactic puzzles and redo them whenever I want? I do tactics on lichess but it doesn't store my puzzles. Is there somewhere that stores all my tactic problems ...
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Strategic implications in this puzzle by S. Polgar/P. Truong

Usually chess puzzles at my level (beginner) have just one or two forced variations and a clear achievement, like a substantial material gain or checkmate. Once in a while, though, a puzzle leaves me ...
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4answers
164 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 ...
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Method to study chess puzzles way above your level

I have a collection of middle-game chess puzzles classified in levels. I can solve most puzzles in the first level after a few minutes, and some of the puzzles in level 2. But for higher levels there ...
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1answer
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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 ...
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1answer
277 views

Chess puzzles in newspapers and magazines which offer a prize

I like chess puzzles, and particularly like those for which there is a prize. The Times, Sunday Times and Spectator provide weekly puzzles (I'm based in the UK). These puzzles are available online as ...
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2answers
304 views

Calculate the first N unknown moves of a chess game

Greetings fellow chess friends, Here is a quick idea that came to my mind. I am interested in writing a software that is able to calculate and/or guess the first n unknown moves of a given chess ...
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1answer
203 views

Strategy behind this chess position?

I am only used to check-in-n type of puzzle, so I am quite lost when my friend challenge me to this endgame position. EDIT: figured out how to do the chess board (note: the board seemed to be flipped, ...
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2answers
282 views

Help me with this puzzle

Look at this puzzle: [FEN "r3q3/1pb1rbk1/2pn1p1p/p1Qp1Bp1/3P4/4P1NP/PP3PPB/3RR1K1 b - - 0 1"] The aim of the puzzle is: Black to play and attain a good position. But I can't find a good position ...
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5answers
1k views

Chess Opening Puzzle App

I like chess puzzle apps. But they all focus on the end or middle game. The reason is clear: In the opening there is no single truth. But there is some common sense what's good and what's not. Is ...
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4answers
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How much time you spend on one puzzle?

I know solving tactics puzzles is one of the recommended ways to improve in chess. I spend around 30 min solving puzzles. How much time I should spend on one puzzle? During games we don't think 15-...
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2answers
260 views

Thinking to solve the puzzle

I came across a puzzle on lichess.org, (Black to move) , I was unable to solve it. But I know the solution now, I don't wasn't the solution or analysis. I just want to know how should one think ...
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1answer
237 views

Why shouldn't the black king move to h7?

If white plays ne6+, why shouldn't black play kh7?
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1answer
349 views

Why is Nb5 a strong move here? Why is there a guaranteed material gain?

Taken from: Chess Academy: A subtle blunder [Title "White to move"] [FEN "r1bqr1k1/pp1nbpp1/4pn1p/2pp4/2PP1B2/P1NBPN2/1P3PPP/R2Q1RK1 w - - 0 1"] White can play Nb5 followed by Nc7 but wouldn't ...
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1answer
185 views

Chesscademy Tactic

Why would black move their knight (b8) to d7 vs taking the bishop (f5) with the queen? Click the link to see an interactive version, can someone explain this to me, I see no reason for black to lose ...
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6answers
407 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 ...
6
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2answers
383 views

Can someone describe a good/easy mental procedure to choose the best move here?

This is kind of like magic to me. Once they show you it becomes obvious :) :( Can someone point out a good/easy strategy that a player can mentally train/use to decide what is the best move here for ...
2
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1answer
239 views

Chess puzzle that is hard to understand

Today I was solving a chess problem as following picture : [fen "r1bqr1k1/1p3nbp/2pp2p1/2n2P2/p1PN1P2/2N1B1PP/PPQ3B1/R3R1K1 b - - 0 1"] The solution given was 1...Rxe3, but I did not get the actual ...
4
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1answer
543 views

Question about knight vs. 3 pawns endgame

In the following puzzle, 5. Kb6 is considered better than 5. Kc7. Doesn't Kc7 force Black to sacrifice his knight (sooner)? [FEN "8/3n4/8/1P3k2/1P6/4K2P/8/8 b - - 0 1"] 1... Nb6 2. Kd4 Ke6 3. Kc5 ...
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5answers
3k views

Effectiveness of a spaced repetition system (SRS) for memorizing tactical patterns for long-term skill gain?

After reading Micheal de Maza's article 400 Points in 400 Days and the paper Training in Chess: A Scientific Approach by Gobet and Jansen, I have come to the conclusion that effective gains in chess ...
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3answers
262 views

Why did black choose 1… Kxg7 instead of 1… Rfe8 in this puzzle?

I have a doubt with a puzzle that I solved recently. The proposed solution for that puzzle is as below. [FEN "r4rk1/pp4np/2n1bppB/qNQ1p3/8/6P1/PP2PPBP/R4RK1 w - - 0 1"] 1.Bxg7 Kxg7 2.Bxc6 bxc6 3.Nd4 ...