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Alice and Bob invent a game

So building on kristinalustig's answer they are indeed playing The cards are assigned as follows Alice's first turn Bob's first turn In particular Alice's next move produces Bob's next move ...
• 137k

Shortest game of Monopoly

If you are trying to lose the game as quickly as possible then you can do it in 1 turn and 2 rolls of the dice. This is using the UK version as I'm not sure about the US one. Roll 1: Roll 2 (Because ...
• 2,630
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Magic Maze Puzzle

Okay. THAT. WAS. INCREDIBLE! It took me two solid hours of work to solve and even longer to write and draw it all up here - hopefully it'll be worth it! To start us off, here is the final maze layout ...
• 145k
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The body in the cellar

The host was murdered: Because:
• 16.6k
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• 6,053
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What's the maximum number of pegs you can leave on a 15-hole triangular peg solitaire?

It can be done in jumps. Here is the solution: If you start with the hole elsewhere, you need more moves to reach an end position. Here are all the optimal end positions for each case, but without ...
• 53.7k
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• 1,536
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A game of red and black

The game is and the result is
• 147k
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On my puzzle website there is an old puzzle called Hoo-Doo which is essentially this same puzzle. Some other board sizes:
• 53.7k
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Let's continue our Monopoly game

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

Riley Riddle in the game

The Riley Riddle resolves to clue the board game: My first can hold flags. My second lasts three months. My last is your attention. My whole is the game you're playing. We're not done yet. ...
• 145k

• 474
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Four free rooks for checkmate

First rook is placed at any of Second rook is placed The third rook is placed And then the fourth rook A crappy example game below:
• 19.7k
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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
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A Drink and a Game

After revisiting this puzzle time and time again without an insight striking, I think I finally have it! What was ordered to drink? Why? Well, first of all it's vital to realise that the board game ...
• 145k
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Chain Puzzle: Tabletop Games #10 – Risky Finale

The clue answers: Sorted by group (and given in text form): And when you take the given pair of letters, and read those pairs of letters in clue order, it spells out the message: The full journey ...
• 147k
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But She Don't Care

These board-gamers are playing: The board at the end of the game looks like this: Who wins the game? A final few Easter Eggs:
• 145k

Alice and Bob invent a game

I spent quite a while working on this yesterday and today. I only have a partial answer. I started with the assumption that I chose this assumption because: Given this assumption, I tried: However:...
• 3,402

Clear board in Othello (Generalisation)

Here is one way you could begin to prove that the board can be cleared for all values of $m$ and $n$. Proof by induction. [incomplete] Case 1: $k = 1$ Here we take k = 1 to mean the smallest ...
• 1,018
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Chain Puzzle: Tabletop Games #08 - Targui, or not Targui

From the facts about the first grid My first guess of the genre was Naturally, the next step would be It is not very hard, if we focus on the number 5: Therefore, Now to the second grid. With ...
• 15.6k

What is the minimum-sized Blokus board which can contain all pieces?

Wow, that sure is tight. And yes, even though it doesn't look like it at the first glance, the I and T pentominoes are legally connected to each other :-) This took surprisingly long to find and (...
• 77.7k
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Least amount of moves is required

Using a computer to attempt to beat my original solution I found some Here is one: I reduced the search space by not allowing stones to moves to (although they can jump via) the spots marked with an ...
• 21.1k
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Monte Carlo Chess

I initially gave a slightly rambling stream-of-consciousness answer, which I have preserved below in case anyone prefers that. Here is a slightly slicker one. (It is the same argument, just possibly ...
• 120k
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OK, I barely made it with 10 moves, but it seems pretty hard to prove this is optimal (and I suspect the answer may be lower). The last move you make is Rh8, which will be the mate.
• 6,964

It is: Reasoning:

This should do it: White is in zugzwang, so black has
• 77.7k
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Othello - Most number of legal moves in a given turn

The upper bound limit is likely to be quite a bit lower than 60. For the purposes of this I will assume that you are WHITE. In order for you to have a valid move in Othello, you need a line formed ...
• 10.6k
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Checkmate all the kings #1

I got a quick answer but not sure how good it is.
• 9,840