# Tag Info

Accepted

### Mate in 0 moves

White must Indeed Note that
• 6,290
Accepted

### Checkmate in 1 on a Tangled Board

Since the puzzle turned out to be way hairier than expected, my earlier answer got quite messy and hard to follow, so here's a complete rewrite. It's still very clunky, but I hope it's much clearer ...
• 77.7k
Accepted

### Can White Castle?

Now that we have three increasingly complex proofs (two deleted, one of them mine) that it's impossible, it's pretty clear that it must be Here's why: This is, without doubt, the most refreshing ...
• 77.7k

### Mate in 0 moves

I see Evargalo has found the right answer, but the first thing that occurred to me was
• 2,961
Accepted

### Chess : The Lone King

Here's a solution: Here's some of the logic for finding it: Here's a link to the moves: Clear the board! And here's a gif (thanks to chess.com's gif maker):
• 23.7k

### Can White Castle?

(Edit: so this is wrong..) Brilliant puzzle! The answer is: [Spoiler alert! Scroll down at your own risk] We proceed by contradiction. Assume that indeed, White can castle. We have the ...
• 9,917
Accepted

### How did four chessmen disappear?

This seems to work: And the position looks like this: Apart from the symmetrical solution, this might very well be unique:
• 77.7k
Accepted

### A Checkmate of Dubious Legality

I claim that The reason:
• 147k
Accepted

### Which word wasn't with Wednesday's ...crossword

The word that doesn't belong is The crossword looks like this: How I solved it:
• 26.3k
Accepted

### Musical message from a long-lost uncle

Featured in the past, compositions by musical uncle Francis, at: Handbill: La-Fa-Sol-Do-Re Ti-Fa-Sol-Do-Re Ti-Ti-Do-Sol-Mi-Re Sol-Do-Do-Mi-Sol Sol-Ti-La-Fa-Mi-Re-Mi-Re Ti-Fa-...
• 21.9k
Accepted

### Megan mated by a king move

Oooh, that's a nice one. First of all, Further more, it's a mating move by I first tried (in vain) to So it must be It turns out that with the following moves: Final position:
• 28.1k

### Chess Construction Challenge #6: The One Move Royale

Vepir has helped twice in this answer, first in spotting a mistake and then with an improvement in the number of moves. Please got upvote their answer too if you like this one. Here is a position with ...
• 137k
Accepted

### Can White still castle?

My answer is To back it up, To explain how I found this answer, Also note that Now the difficulty is that How recently
• 7,138
Accepted

### Let's continue our Monopoly game

It is currently: because All that means it is now the
• 7,756

### Mate in 0 moves

Not exactly a checkmate, but there is an option with a similar effect that can be performed in zero moves:
• 373
Accepted

The other guys already got the answer. (Maybe not with completely airtight arguments, but nevertheless.) The explanations would be a lot easier to follow if they had pictures, so here's one: Legend: ...
• 77.7k

### Only one square for the white king

HTM's answer is very nice and must be what's intended here. But I'm not quite seeing why the puzzle isn't cooked as follows:
• 120k
Accepted

### Only one square for the white king

Note that without their king, White’s plan would be Thus, the aforementioned sequence of moves will The only square White’s king can be in that satisfies the constraint is
• 16.3k
Accepted

### Scholar's mate with queen excluder

Given the queen excluder constraint, this position is Reasoning: Comment answer:
• 186
Accepted

I assume Then
• 15.9k
Accepted

### A poorly-designed chess problem

Well, for the mate in 1, For a mate in 2, An assured path to victory: As to the final question: EDITED after the sudden appearance of the corner knight: The stuff in the spoiler tags got shuffled ...
• 77.7k
Accepted

### White's last move?

In the position shown, Now, Before that Black White So we have the following sequence of events. Now, We still haven't figured out Suppose that Now So let's consider We must now be quite ...
• 120k
Accepted

### Retrograde Analysis Problem Inspired by Various Chess Memes

Looks interesting, let's see.. Since the white king is in check, the previous move can only have been "black somehow moves a pawn to b5. There are three available starting squares for the pawn ...
• 77.7k

### Chess : The Lone King

I found the following: The key is that
• 19.7k

• 346

### Chess Construction Challenge #6: The One Move Royale

Score: Position: Moves: Fun fact,
• 2,968
Accepted

rand al'thor points out that and since the numbers are but after the square marked 16, Robert's got this (image courtesy of OP) and we can now see why Robert is distressed: ... which is a ...
• 13.9k

It is: Reasoning:
Accepted

### Tht Aain’t Right... #2

I suspect the broken rule is Allowing the checkmates A hint pointing to this answer:
• 78k