Author: Category: System: Language: Len source code: <70 bytes> Len exe file: Len code only: Instructions: I have not been able to make an autoexecutable file with this emulator, but it can be done: <1. You can use the BeepEm emulator> <2. Copy the code (bbc.txt)> <3. In the emulator: Edit->Paste> <4. Press Enter> <5. Type: CLS:RUN> <6. Press Enter> Description: RND(19)-1:Y=RND(19)-1 Generate two random coordinates between 0 and 19 IFABS(X MOD6-3)+ABS(Y MOD6-3) By doing MOD 6 we reduce any point to the first quadrant The points of the first rhombus verify that: ABS(X MOD6-3)+ABS(Y MOD6-3)=3 Being (3,3) the coordinates of the center of the rhombus The IF statement ensures that only points that meet that condition are printed. Comments: I originally made the code for ZX Basic, but BBC Basic has some advantages in terms of reducing the length of the source code. In particular: - It is not mandatory to use LET - It has the MOD function - The RND function is also shorter, - It allows joining some statements by making IFABS instead of IF ABS, or MOD6 instead of MOD 6 etc... - It also allow abbreviations V. instead of VDU, and G.1 instead of GOTO .By the way this means that last year's winning code could have been 4 bytes more shorter: 1F.y=-8TO4:F.x=-4TOy+4:V.31,x*SGNRND+8,y*SGNRND+9,42:N. Finally my apologies since I don't know how to calculate the Len exe file and Len code, the Len source code. I have calculated the len source code by counting the number of characters