Castledoku
One castle per row, column and kingdom, none touching. 200 puzzles on a pixel island.
Castledoku is a calm logic puzzle set on a pixel island split into colored kingdoms. You place one castle in every row, every column and every kingdom, and no two castles may touch, not even at the corners. Tap a cell once to mark it with an X and again to build. Each castle crosses out its row, column, kingdom and neighbors for you, so the board narrows as you go. Build where the answer has no castle and it crumbles, so it pays to think first. There are 200 levels from 5x5 to 9x9, each with a single answer, plus a new daily puzzle. Solve without a mistake for three stars. Coins you earn go toward 24 houses, towers, abbeys and a gold castle for your own island. Plays offline with no account. Free, with an ad now and then between levels, never during play, and no purchases.
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