4=10 vs Lattice Five

4=10 is a simple number puzzle game suitable for all ages. The objective is to use four given numbers and combine them in an expression that equals 10. For example, you can solve it by adding 1, 2, 3, and 4 together (1+2+3+4=10). The game relies on basic math operations and starts off easy, gradually increasing in difficulty. It's designed to be a relaxed and soothing experience. You can play it with just one hand, using your phone whenever and wherever you like. By playing this game, you'll become more comfortable with numbers and improve your basic math skills, including mental calculations, using parentheses, and following the correct order of operations. Enjoy the game and happy calculating! :)

Lattice Five is Morpion Solitaire — the pen-and-paper puzzle also known as Join Five, played on grid paper since the 1970s. Place one dot, then draw a straight line through five dots in a row. The line has to run through the dot you just placed, and no stretch of the grid may ever be drawn twice. That single constraint is the whole game: every line you draw closes off possibilities, so a good move is one that scores now and still leaves the board alive. Your score is the number of lines you manage to draw. Beginners finish in the forties. The human record, set by hand in 1976, is 170. WHAT'S IN IT • Free play with unlimited undo — explore, back up, try the other line • A daily board everyone plays, with streaks • Five rule sets: 5T, 5D, the solved 4T and 4D, and the looser 5T+ • Random starts with a six-character code you can share as a challenge • Every finished game saved as a replay you can scrub through • An openness curve under each game, charting where the position peaked and died — and your personal best drawn as a ghost to race • Two-player on one device, or a live duel with people in the same room over the local network • Full keyboard control on Mac and iPad, and a board you can read by feel: slide a finger and it buzzes wherever a dot can go NO NONSENSE No ads. No purchases. No account. No server, no leaderboards, nothing collected — your scores are yours, on your devices, synced through your own iCloud if you want them to be. One purchase, all platforms: iPhone, iPad and Mac.