Tsumego Pro (Go problems) vs GrandArena

Improve your Go game (weiqi, baduk) with Tsumego Pro and its large collection of tsumego problems! Each problem contains all valid answers and a lot of bad variations, to help you know why you are wrong. Features: - 6 daily problems - A simple mode: try to solve all problems in each package - A progress mode: the difficulty increases or decreases depending on your level - Choose your color (black, white, random) - Browse the solution, or just get a hint - A book theme (black and white)

GrandArena is chess without the friction. Open it and play — no sign-up, no clutter, no lessons to sit through. Just the board. PLAY YOUR WAY • Play the computer — five levels, from a gentle start to a real fight. Untimed, offline, no account. • Pass & play — two players, one device. Perfect for the sofa. • Play online — rated real-time games with matchmaking, live clocks, and an ELO rating that means something. BUILT TO GET OUT OF YOUR WAY • The chessboard is always ad-free — paid or not. • Offline-first: the computer and pass-and-play work with no network and no account. • Clean, quiet design. Pick your piece set and board theme. • Sign in with email, Google, or Apple when you want to play online and keep your rating. ONLINE, DONE RIGHT • Fast matchmaking across 5+0, 10+0, and 3+2 time controls. • Real ratings, leaderboards, and full match history. • See where you rank — globally and in your country. FAIR PLAY • Anti-cheat protects rated games so your rating is earned. GrandArena is free. Ads appear only on non-gameplay screens, and a single one-time purchase removes them for good if you'd rather not see them — the board stays ad-free either way. Just chess. Play anyone.