Tsumego Club: Go Problems

A tsumego is a short Go puzzle: save your group, or capture your opponent's. The frustration with most problem collections is the answer key — a move marked correct that does not actually work, or a wrong move the book never refutes. In Tsumego Club, a built-in life-and-death solver has worked through every problem, so each correct answer is proven and every wrong move has a reply waiting. How a problem plays 1. Place your stone on the board. 2. The opponent answers with the strongest reply the solver found. 3. If your move fails, you see exactly how it is refuted. Undo and think again, take a hint, or reveal the solution. What you will solve • 226 first-steps problems: capturing, making two eyes, finding the vital point, then living and killing in real game shapes • A selection from Gokyo Shumyo, the 1822 classic, limited to problems the solver could prove • A daily problem, the same worldwide, easy on Monday and hard by Sunday, with a streak to keep New to Go? A step-by-step tutorial written for people who have never played starts with stones, liberties and capturing and walks you to your first solved problem. A plain-language page explains the rules of Go. Comfortable to read Large view enlarges the text, stones and buttons and deepens the colours, which many older players prefer. Choose among four boards and three stone sets, with a dark theme for evening practice. Progress you can feel Ranks from 18 kyu to 9 dan, a daily streak, daily quests, a monthly challenge and badges. Solving the same problem twice on one day counts as practice, so the numbers reflect real progress. Free and Full unlock Levels 1–2 of the first-steps set (161 problems) stay free, and so does the daily problem at every level. Each problem gives two free hints, and solution, undo, tutorial and rules are always included. Full unlock is one optional purchase, made once: it opens every problem from level 3 up, the Gokyo Shumyo classics, unlimited hints and all boards and stone sets. No subscription. No ads. No sign-up. Everything runs offline on your device, and no personal data is collected. Languages: English, 한국어, 日本語, Tiếng Việt, 繁體中文 Feedback & bug reports: https://tsumego-club.telloo.io/feedback

First release of Tsumego Club: 226 Go life-and-death problems plus Gokyo Shumyo classics, every answer and refutation proven by a solver, a daily problem, and a tutorial for people who have never played Go.