Yes, i think that 12 euros is about....£8, which in't too bad. You have 5000 games on it, with 5 levels, so there's 1000 for each level. It's easy to work, you just scroll through the games until you find one you want to do, and press start. You have arrow buttons which move you around the boxes, and a number pad to put in the number when you think you'v got it. You are timed, and when you're finished you press 'solved' and it tells you how good your time was eg: excellent, very good, good etc. The only real problem with it is the numbers on the screen are a little hard to see. I expect that it's the same one that i've got and you've seen, it's the only electronic su doku i've seen but i expect other kinds would work similarly anyway Hope that's helped