The first time I wrote this puzzle I did it in Assembler Z80, in my old ZX Spectrum. It was a good opportunity to improve my capabilities in Assembler and I learnt a lot.

But, now, the things are different. Assembler is necessary only in few cases.

Because I started learning Visual Basic, I decided to write this interesting puzzle again. This time more beautiful and playable and with more functions. The program becomes more complex, but it's easier to create in Visual Basic than Assembler. Visual Basic is really easy to understand.

In this site, you can check the results of my work. I hope you like it!