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Happy Halloween!
This problem by Miguel Ambrona, 2024, has the following stipulation. We don't know which way round the board is, but we are told that one player retains castling right. Which side is White: the reds or the blues?
This problem gives an example of a so-called "chess vampire", i.e....
What word is hidden below?
[8][ ][ ][ ][ ][ ][ ][ ][ ][ ]
[ ][ ][ ][ ][6][2][ ][ ][3][10]
[7][ ][1][4][9][ ][ ][ ][5]
(It's slightly misspelled, but you'll see what I mean)
Link to question
Grandmaster Lev Alburt plays at least one game of chess a day to keep in shape and not more than 10 games in any consecutive seven-day period to avoid tiring himself out. Is it true that if he plays long enough there will be a series of consecutive days during which he will play...
From the Intermediate Mathematics league of Eastern Massachusetts, Meet #1, October 2008:
In the equation below, what is the value of $A + B + C + D$ if $A$, $B$, $C$ and $D$ are all positive integers?
$$
\dfrac{1}{A + \dfrac{1}{B + \dfrac{1}{C + \dfrac{2}{D}}}} = \dfrac{13}{70}
$$
I saw this q...
This is my first time writing cryptic clues. I think I did a pretty good job of it, but I can't be sure that everything is indicated 100% properly. Sorry in advance.
I have 12 five-word cryptic clues, each indicating a five-letter word. Unfortunately, the grid they go in is... not a crossword, to...
Rules
Alice and Bob take turns claiming territories on a map. After their first turn, a player may only claim a territory if it borders one they already own. If a player has no moves available, they lose their turn. Once neither player can move, a player wins if they own more territories.
Example...
After preparing for years, you go to the 51st Intergalactic Coding Olympiad. The moment the test starts, you flip over the question paper. To your surprise, it has only one question which involves... none of the programming languages that you studied.
The question describes a programming language...
