Cody Boone Ferguson
3deb7ae603
Amongst the changes here is that we do not need to have the hex or html
code (numbers) for open and close parentheses (in links) as there are
names. '(' is & followed by lpar; and the ')' is the same but 'rpar;'
instead. This makes it easier to remember and type and it generates the
same html as well (they are all valid). Now the markdown files are
consistent in this (in some cases hex was used and in others the html
code).
Although many markdown files were updated no html files needed to be
updated as it generates the same html. Even so I ran the appropriate
rules to do so just to verify this.
120 lines
3.0 KiB
Markdown
120 lines
3.0 KiB
Markdown
## To build:
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``` <!---sh-->
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make all
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```
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## To use:
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To have the computer guess:
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``` <!---sh-->
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./leo [colors]
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```
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To guess the computer's number:
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``` <!---sh-->
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./mind [colors]
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```
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where:
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`[colors]` is the number of possible colors (1 to 15) (default: 6)
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## Judges' remarks:
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By default, the number of colors is 6. You may specify a
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value of between 1 and 15 colors. See the author's notes
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for instructions of how to play.
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We look forward to more entries from the newer members of the
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International Internet community.
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## Author's remarks:
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This program plays
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[Mastermind](https://en.wikipedia.org/wiki/Mastermind_(board_game)), if you call
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it by a name ending by `d`, otherwise it _solves_ Mastermind. Call it without
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parameters to use 6 digits (colors), or indicate the number of possible digits
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(you cannot change the number of positions so easily).
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The number in parentheses is the number of possible combinations,
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based on previous questions and answers. If you solve the puzzle,
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"(1)" indicates that your previous moves are enough to give correct
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answer. If the program acts as solver and terminates prematurely,
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it means that you're mistaken in your answers to its question(s).
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Question marks indicate the number of digits you have to enter
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(either 4 when you guess or 2 when computer guesses).
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Note that the program uses the same code for both player and
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solver, and the only place where it makes a difference is the
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interactive part. Many obfuscations have been made to achieve
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this. An expression giving `(bulls * 16 + cows)` from two numbers
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is, however, quite straightforward :-) , as well as the arithmetic
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of binary coded colors-base numbers is.
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### Limitations: maximum number of digits (colors) is 14 (1..F).
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Suggestions: Use terminal (or emulator) with non-destructive
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backspaces. Do "disable scrolling" on cmdtool or similar emulators.
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#### Bugs
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Please don't type `^D` at the prompt!!
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##### EXAMPLE: Suppose we think of 1234
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```
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$ ./leo
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(1296): 6433
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?? 12 # one 3 is a bull, another is a cow, and 4 is a cow
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(160): 5363
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?? 02 # both 3's are cows
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(21): 4231
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?? 22 # 2 and 3 are bulls, 4 and 1 are cows
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(2): 4132
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?? 13 # 3 is a bull; 1, 2 and 4 are cows
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(1): 1234
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?? 40 # you may enter everything there
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```
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##### EXAMPLE: Guess the computer's number
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```
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$ ./mind
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(1296): ???? 1122 # my strategy isn't the best, just as example
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00
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(256): ???? 3344
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20
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(18): ???? 5566
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02
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(6): ???? 3654
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11
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(2): ???? 3355
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00
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(1): ???? 6444
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40 # we have guessed the number
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```
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<!--
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Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.
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You are free to share and adapt this file under the terms of this license:
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Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
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For more information, see:
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https://creativecommons.org/licenses/by-sa/4.0/
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-->
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