200 levels, from easy to expert
Every level in Puppy Hideout is a Queens puzzle with exactly one solution. The first levels use 8×8 boards and only need the basic rules: one puppy in each row, column and color, with no two puppies touching. As you go on, 10×10 boards appear and the puzzles start asking for deeper techniques, such as spotting a group of colors that fills a set of rows, or following a short “what if” chain to rule a cell out.
Finish a level to unlock the next one. You earn three stars for a clean solve, two if you lost a bone, and one if you lost two bones or used the free extra bone. Your first clear of a level also gives you a free Hint, a three-star finish gives you a Sniff, and every fifth level gives you a Fetch. Every fifth level is a breather, and every tenth level has a tougher challenge waiting just before it.
Progress is saved automatically in your browser, so you can close the tab and continue later on the same device. When you finish all 200 levels, new puzzles keep coming: the game builds a fresh one for each level number beyond 200.