Questions tagged [pencil-and-paper-games]

A puzzle whose solution is characteristically worked out using a pencil and paper. Common examples include connect-the-dots, hangman, dots-and-boxes, fill-in-the-blank, and SOS. Note that crossword, Sudoku, tic-tac-toe, and logic grid puzzles all have unique tags.

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18
votes
4answers
1k views

Match the blocks

This puzzle is pretty easy but sure and entertaining one. so take your pencil and start matching the columns. don't look into another answer to enjoy it. well, what you need to do is to draw a line ...
22
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6answers
3k views

From Puzzling to StackExchange

This is a variation of a game I used to play with my friends in my childhood. You are given a starting word, and using the following operations, you have to reach the target word. The solution that ...
6
votes
1answer
213 views

The Wee County begriddled puzzle

Update: This puzzle is NOT UNIQUELY SOLVABLE. I meant it to be. Red face. (Nick Rice, 17 Oct.) I live in Britain's smallest historic county - Clackmannanshire, in Scotland. It is often referred to ...
8
votes
2answers
707 views

Reverse dots and boxes, swastika edition

Alistair and Roberta are playing a game of reverse dots and boxes. The players take turns adding one horizontal or vertical line in one free spot on the grid (marked with light gray lines in ...
14
votes
2answers
701 views

Reverse dots and boxes

Alice and Bob are playing a game of reverse dots and boxes. The rules are simple: The players take turns adding one horizontal or vertical line in one free spot on the grid (marked with light ...
15
votes
3answers
2k views

Optimal play for 2 by 2 dots and boxes

Consider the classic pencil and paper game Dots and Boxes . You can assume the 2 by 2 version (that is with 9 dots). Starting with an empty grid of dots, players take turns, adding a single ...
9
votes
1answer
324 views

Paper, pencil and a bunch of bars

An entry for the Fortnightly Topic Challenge #40. Alice and Bob are two rational players who are playing a simple pencil-and-paper game. In the beginning, there are fifteen small vertical bars on ...
3
votes
2answers
227 views

What is the fewest amount of clicks needed to create a tier 5 tile?

PLEASE NOTE! A different problem that uses this same ruleset that can likely only be solved with brute force and a computer program has been posted to math.se, viewable HERE. I was unaware of the ...
7
votes
1answer
369 views

Another 'Find the Path' Puzzle

Based on user477343's Find the Path puzzle I have produced a slightly larger puzzle based on a similar mechanic. Goal is as follows: Draw a continuous path between the two red dots. The path must ...
8
votes
4answers
453 views

A “Find the Path” Puzzle

I invented a puzzle, inspired by Simon Tatham's Portable Puzzle Collection. Is there anything that it could improve on? Was it too easy, or was it too hard? Anything I could add? What must I call it? ...
2
votes
3answers
421 views

Coding puzzles with pen and paper

At work we are doing a coding competition on hackerrank – it is real coding – you are given input and you have to code a program that produces the correct output. Now, I would like to promote this ...
5
votes
1answer
515 views

Can you tie in 3D Tic-Tac-Toe?

In 3D Tic-Tac-Toe, there are 3 2D planes, each 3x3 in size, stacked on top of each other. A winning line can go through each of the layers (in addition to the standard winning lines of normal Tic-Tac-...
3
votes
1answer
808 views

$\verb|Eight Circles|$

An entry in Fortnightly Topic Challenge #37: Rare and Endangered 1 Materials Pencil; Eraser; Blank A4 sheet of paper; and A ruler (also to use as a straightedge). Puzzle: Draw a square with a side-...
7
votes
1answer
235 views

Domino Tiling Game

Two players are presented an $n\times n$ grid. They take turns placing a piece on the board until no more moves are possible. The last player able to make a move is the winner. The pieces are $2\times ...
14
votes
2answers
804 views

Does this grid puzzle with a symmetry-breaking condition have a solution?

Since challenge questions are up in the air, what better time to pose a puzzle-building question that's intrigued me for some time. Preamble Consider an infinite square grid made up of nodes and ...
5
votes
1answer
158 views

Can you draw a path visiting the numbers in order without crossing itself?

The rules of this challenge come from a recent Reddit post and are restated here. Rules Given a numbered grid, the challenge is to draw a path through the points in the grid subject to the following ...
7
votes
1answer
788 views

A Strategy Game Involving Conquering of Regions

This is a game that I saw in a book long ago. Unfortunately I cannot find the book now, and even if I can as I recall it does not provide a strategy. I will be very grateful if you can provide me a ...
16
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2answers
1k views

Tic-Tac-Toe variant

To help people think this out, I've made a web game with increasingly difficult cpu players to allow brainstorming and testing strategies: cpu player, easiest (version 1 - at least 5-in-a-row is ...
8
votes
1answer
238 views

Dot-Placing Puzzles

Here are some interesting puzzles that I came up with. If these aren't original and have come from somewhere else, please let me know. The goal of each puzzle is to place dots on some intersections ...
2
votes
1answer
167 views

Coins in a row, without the usual restriction

I had been asked the following question: n coins are placed on a line such that they touch each other. A move consists in taking either one coin, or two adjacent (touching) coins. Solve the standard ...
7
votes
1answer
836 views

Tic Tac Toe Recursive

Related: Connect 4 Recursive We have a mega tic tac toe grid. Each of the nine cells of the mega grid has a smaller tic tac toe grid. In total we have 81 cells that can be filled. (Maybe imagine a ...
1
vote
1answer
172 views

Oct - Dots and Boxes on Steroids! [closed]

This game originally came about as the solution to the question: "How can I make Hex with more than 6 directions?" After playing a couple of games of 'Hept' and 'Oct' on their respective tilings of ...
8
votes
2answers
2k views

25 square puzzle

You have a 5x5 grid filled with 25 zeros. Your objective is to convert the grid into 25 ones. You must do this by a series of special moves. On each move, you select a single cell. All four ...
-2
votes
2answers
696 views

Draw without lifting / going on the same line? [duplicate]

Draw this without lifting / going on the same line the following figure.
2
votes
0answers
586 views

Can you draw a “Four Roofed Crossed Square” without lifting your pencil? [duplicate]

The puzzle I am trying to solve is where you must successfully draw a geometric object without lifting your pencil or running over previous lines. Can you solve it for the following:
5
votes
4answers
917 views

Word ladder island (formerly dead-end)

Following on from CodeNewbie's question "From Puzzling to Stack Exchange", I thought I would set a problem of my own using the same rules: Rules: In any move, you can either replace a letter, add a ...
3
votes
5answers
493 views

OE Challenge - Solve faster than fast! Help Steve get out of hell [closed]

Steve is having a rather bad day. Steve has died, and because Steve had a propensity for driving slow in the fast lane, Steve goes to hell. As soon as Steve gets to hell, Satan, Hitler, and ...
11
votes
1answer
535 views

Bouncing Robots: Graphical Puzzle [closed]

Robots are indicated by the arrowhead shapes and the labels "r", "y", "b", "g". The label obviously corresponds to their color. The aim of the puzzle is to pick up the shapes and put them down in the ...
8
votes
1answer
1k views

Hangman- No misses left

**** No programs allowed. You must find the answer using your own brain. **** Your hangman game allows for 9 misses, but on the 10th miss, you're hanged! You don't want to be hanged. The letters ...
6
votes
5answers
4k views

Dots and Boxes- Best Move in Given Position

In the following game of Dots and Boxes, it is your move. Your opponent is a computer who will play perfectly. What is the best move, and why?
5
votes
3answers
287 views

Dots and Boxes Part 2- Best Move in Given Position

This is a follow-up to my first Dots and Boxes question. It is just a little bit harder than the first one. Each one I post will be a bit harder than the previous one, and they will all be from games ...
7
votes
4answers
279 views

Dividing Grid by Numbers

Separate the grids below into groups of squares, such that: Each group contains exactly one numeral. The number of squares equals the numeral in the group. For example: Could be solved liked this: ...
27
votes
2answers
899 views

Pseudoku: A Game of Finding Order in Chaos

You are Pat Doe, a lowly Sudoku puzzle-maker eking out a living by producing hand-made Sudoku puzzles. After an exhausting eight hours, you've just completed your last Sudoku grid for the day. ...
6
votes
1answer
1k views

Name of dots and lines game

Note: This is a question about a strategy puzzle / game, and is not proposing a puzzle itself. Growing up I often played a pencil and paper game with the following rules: First someone draws some ...
12
votes
3answers
2k views

Tic-tac-toe 1000 in a row

Consider a variant of Tic-Tac-Toe and Gomoku on a board that's infinite in every direction. X wins by getting a line of 1000 X's ...
7
votes
5answers
2k views

How many squares can you find in the picture?

How many sqares can you draw in given pattern, when each corner of a sqare has to lie in the exact center of one of the 20 colored circles?