Binairo vs Chess Endgames

Fill the grid with 0s and 1s. Just three simple rules. Binairo — also known as Takuzu or Binary Puzzle — is pure logic: no luck, no math. And when you get stuck, the hint tells you why a cell is decided, not just what goes there. A calm, Japanese-inspired design makes a few minutes a day feel like a quiet reset. ■ HOW TO PLAY Put a 0 or a 1 in every cell, following three rules: - Never three of the same number in a row or column - Each row and column has equal 0s and 1s - No two rows and no two columns are identical ■ FEATURES - Every puzzle has exactly one solution (checked in-app before it's shown) - Four levels: Easy 6x6, Medium 8x8, Hard 10x10, Expert 12x12 - Daily puzzle: everyone plays the same one, with streaks and a calendar - Two styles: numbers (0/1) or two-color stones - Mistake highlighting, remaining counts, undo, and clear all - Explained hints that tell you the rule behind each move - Stats for solves, best times, and no-hint rate, plus 10 badges - Japanese-inspired board themes - A short, hands-on tutorial for first-timers ■ GREAT FOR YOU IF… - You love Sudoku and want a fresh logic puzzle - You prefer clean deduction over guessing - You want to learn the reasoning, not just get the answer - You want a calm mental break on the commute or before bed - You enjoy apps with a quiet, minimal look ■ PRIVACY - No account or sign-up - Puzzles are generated on your device, and you can play offline - Your records stay on your device and are never uploaded - No data collection - To show our other apps, Binairo loads public App Store info (names and icons)

Endgames decide games, and almost nobody trains them. ChessEndings turns endgame theory into muscle memory: instead of watching lessons, you play each ending out against a built-in Stockfish tuned for maximum practical resistance. It never gives up the way raw engine lines do, so you have to find the real winning technique. The basic checkmates, from the start - King and queen mate, and the stalemate trap that ruins it - King and rook mate with the box method - Ladder mate with two rooks - Mate with the two bishops - Bishop and knight mate, the one everyone fumbles The endgame families - King and pawn: opposition, triangulation, the rule of the square, key squares - Rook endings: the Lucena position, the Philidor position, the Vancura defense - Bishop vs knight, opposite-colored bishops, queen vs rook - Passed pawns, zugzwang, back-rank mate, the 50-move rule Why it sticks - Every mistake explained: when you slip, the coach shows you what went wrong and the idea behind the right move. - No memorizing squares: revisit a position and the board is transformed, so you learn the technique, not the pattern. - A defender that varies: in a lost position with several equally good defenses, it rotates between them and never picks a weaker one, so you train the whole ending and not a single line. - Rated Gym: endless drills matched to your level, every position checked against the endgame tablebase. - Journeys: guided paths from the basic mates up to the hard rook endings. - Scan your own games: we find the won endgames you let slip, and the exact move. - Play as a guest: no account needed to start. Premium A one-time lifetime purchase unlocks unlimited daily drills, every family and journey, and endless rated Gym sessions. It is not a subscription: nothing renews and there is nothing to cancel. Whether you are learning your first king and queen mate or sharpening a rook-endgame technique you always misplay, ChessEndings makes the theory stick by making you play it.