The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

Monday, February 02, 2015

The smallest chess program ever written

Thirty-two years ago, David Horne wrote a chess program for the ZX-81. It didn't play a great game of chess, and you can't castle, capture en passant nor promote a pawn, but it did have one redeeming feature that set it above every other chess program—it took less than 1K of space! The program, in its entirety, is only 672 bytes in size.

But there's a new contender for the smallest chess game (and the same limitations—no castling, no en passant, no promotion) with BootChess, which is an incredible 487 bytes in size!


Even a program of a single instruction can have bugs

The previous entry reminded of the following computer joke:

Every program has at least one bug and can be shortened by at least one instruction—from which, by induction, one can deduce that every program can be reduced to one instruction which doesn't work.

Only it's not a joke—it really happened!

Obligatory Picture

[It's the most wonderful time of the year!]

Obligatory Links

Obligatory Miscellaneous

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