Tsumego Pro (Go problems) vs Euclid Quest

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)

Euclid Quest turns classical geometry proofs into a calm, paper-and-ink puzzle game. No typing, no formulas to memorize upfront: tap the angles, segments and triangles in the figure, pick a theorem, and watch your proof grow line by line until Q.E.D. HOW IT PLAYS • Tap elements in the figure, then choose the reason — every step is a real geometric inference • Equal values carry over automatically and appear right on the figure • Stuck? A hint can highlight what to select, and the free theorem guide shows a worked example for every rule WHAT'S INSIDE • A hand-crafted main journey across 6 chapters: vertical angles, parallel lines, triangles, congruence, circles and more • Thousands of extra practice puzzles in the puzzle bank, with fresh daily picks • A gentle tutorial guided by Euclid himself • Full offline play — proofs work anywhere • Available in English, 繁體中文, 简体中文, 日本語, 한국어, Español, Français and Deutsch For working adults who miss the satisfaction of a clean logical argument, students who want geometry to finally click, and anyone who enjoys puzzles with real substance. Every proof ends the same way: Q.E.D. — and it feels earned.