OneSolve Go vs ChessCoach

OneSolve Go runs KataGo directly on your iPhone or iPad. Models and problem packs download on demand from the App Store when first needed. Once downloaded, play, problems and local review work offline. Optional online features are also available. CLOUD PLAY AND REVIEW Choose on-device or cloud play in Custom Game. Live cloud play requires an active paid membership and costs 2 credits per AI position analysis. Full-game cloud review costs 200 credits per game. Cloud features send the selected position or game record to our service. The app shows preparation, reconnection and completion status; reviews run asynchronously. Credits are available through in-app purchases, with prices shown before purchase. Cloud review stores the submitted original game record and analysis report so the same account can retrieve them across devices. Downloaded reports are available offline, and reading existing reports does not spend credits again. Older jobs without a retained original game record can only display the analysis results still available. FROM 20 KYU TO 9 DAN+ · The kyu levels are not a weakened engine. They use a network trained on human games — it misses things, gets greedy and plays a loose endgame, like a person rather than a machine playing badly on purpose · The dan levels are set by KataGo's search depth, one rung at a time · 9x9, 13x13 and 19x19, with handicap 7,468 LIFE-AND-DEATH PROBLEMS Life and death, capture, tesuji and endgame, graded by type and five difficulty levels, all solvable offline. 33 BEGINNER LESSONS Ordered after the British Go Association's teaching guide: capturing first, boards up to 9x9 to begin with, ko last. The graduation test is beating KataGo on 9x9 with a 4-stone handicap. REVIEW AND RANK ASSESSMENT Let KataGo analyse a finished game move by move: it draws the win-rate curve and picks out the moves that cost you most. The rank assessment estimates your strength from move quality, not from the result. TUNED FOR APPLE SILICON · Prefers the Neural Engine — same strength, less battery · Low power / normal / full speed, with automatic downgrade when the device heats up · SGF import and export; games sync across your devices through iCloud ONLINE FEATURES AND PRIVACY Share a selected game as a revocable web link. AI explanations use your own configured provider and API key, sending your questions and relevant game context to that provider. Keys stay in the local Keychain; provider charges may apply. No manual registration or sign-in is required. Membership and rewards services process random device/account identifiers, purchase receipts and learning-task progress. After privacy consent, model sessions report device/OS details, CPU/memory use, thermal and battery status, and disk/network counters. Apple provides payments and iCloud synchronization. There are no ads or cross-app advertising tracking. — Membership & Subscription — · Yearly Membership: auto-renewable subscription, 1 year; price shown in-app for your storefront (CNY 38/year in China). Cancel anytime in your App Store account settings. · Lifetime Membership: one-time purchase, not a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tommyeth.github.io/yijie-weiqi/privacy.html

Learn chess step by step, right on your phone. ChessCoach is a chess course that opens on Today's Learning. Every day it lays out a short plan (a daily puzzle, one lesson, a tactics set and a practice game) and tracks your progress by chapter and by theme. ■ 20-lesson curriculum Five chapters: Basics, Opening principles, Tactical motifs, Intermediate, Endgame basics. New lessons end with exercises on the board, checked move by move by the rules engine, with an explanation after every answer. · Control the centre, develop your pieces, castle · Count attackers and defenders, knight forks, queen double attacks · Mate with queen and rook, promotion and the rule of the square, the opposition ■ Game review that explains After a game against the on-device AI, the app picks your biggest mistakes and says why in plain words: a piece left undefended, a missed checkmate, a missed fork. It links to the lesson that teaches the idea, and each mistake becomes a puzzle you can retry. ■ 1,200 puzzles 1,000 checkmate puzzles (mate in one, back-rank mates) and 200 tactics puzzles (forks, pins, skewers, discovered attacks). Every tactics puzzle was checked by the on-device engine to have one clear best move. A daily puzzle and streak. Accuracy per theme shows your weak spots and suggests a lesson to review. ■ Practice games An AI from Elo 400 to 2400, unlimited free hints, move-by-move replay and PGN export. ■ Opening library 15 openings replayed move by move, with the idea behind each. ■ No account, all on your device No server, no login. Lessons, puzzles and the AI all run on your device, even in airplane mode. Your progress never leaves your phone. ■ 5 languages English, Korean, Japanese, Chinese (Simplified and Traditional). ■ Free and the Full Course Free: the first 5 lessons (Basics chapter), Today's Learning, 1,000 mate puzzles, the daily puzzle, the first 5 puzzles of each tactics theme, AI games with hints and review, the opening library and My Progress. ChessCoach Full Course (one-time purchase, not a subscription, Family Sharing supported): all 20 lessons (opening principles, tactical motifs, intermediate, endgame basics), all 200 tactics puzzles, and no ads. If you have used ChessCoach since version 1.0, the 10 lessons you already had stay free, and your saved games, puzzles and lessons carry over. ■ About ads Ads appear only when you open the app: at most 3 times a day, at least 4 hours apart. Never during a lesson, a puzzle, a game or a review, and never on the first launch after installing. No ads after buying the Full Course. To show ads, Google AdMob processes the device information it needs (no personalised ads). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://inphilchoi.github.io/chesscoach-privacy/