This is another hold in a similar vein to the same author's
Foursquare -- one level of individual puzzles that can be tackled in any order, with a pleasing geometric level layout and nice attention to room aesthetics, particularly in the central corridor rooms. The puzzles have a good variety, and most are "
simple"
in the sense of few elements and clear goals. However, the hold is definitely a couple of notches harder than Foursquare, with some very nice linchpins and fun manipulation rooms.
Overall verdict:
6 brains
9 fun/quality
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50th Skywatcher