Why in the world would you go back to play it again?!!
1) I love wandering around in the world of Machinarium (and Samorost, too). To me, there's a strong sense of environment and beautiful artistry that goes beyond the idea of a game in Amanita projects. Fun!
2) I've gone back and replayed all the minigames many times. I poorly play those kinds of puzzles, so it's good practice and learning. The 5-in-a-row is pretty tough--I usually win once for every 7 or 8 games the program wins. Also, it's fun to re-play the "anti-virus" game and videogame #2, which is diabolically simple and clever.
Even so...doesn't it seem odd that the program didn't win with 6 in a row? I still have it running as shown in the screenshot. If you think you know how to beat it, you can tell me what moves to make and I'll see if the player can win after the program gets 6 in a row.