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I love it! Really great and well done.

I'd appreciate it, if someone can share a few more links with similar puzzlers on the web.

This is just like Threes:

I have it on my iPhone and it's fun.

If you've got an Android phone, Slide (https://play.google.com/store/apps/details?id=net.pentapixel...) is pretty similar (yet not quite the same).