I love this collection and have worked my way through most of them. It ranges from the easy and instantly enjoyable (untangle) through to those which even after

I love this collection and have worked my way through most of them. It ranges from the easy and instantly enjoyable (untangle) through to those which even after a lot of playing the higher levels can be frustratingly hard to solve (eg towers). In the middle are some you can learn the tricks for (eg maps) and others where theres always something different (eg galaxies). Theres also a good mix of the familiar and unfamiliar.