Shogi Analysis
AI Game Review & Tsume Puzzles
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Review a game right after you add it. Try any move on the board to see its win rate. Missed mates become tsume puzzles; blunders, a problem set you can solve offline.
Review your shogi games with a real engine, right on your phone.
Paste a KIF from Shogi Wars, Shogi Quest or anywhere else, and get win-rate graphs, best moves and variations from YaneuraOu and Suisho 5, move by move as the analysis arrives.
Then turn your own mistakes into practice: missed mates become tsume puzzles, and your blunders become a personal problem set that keeps coming back until you get it right.
■ NO WAITING
• Positions are analyzed in parallel and results appear move by move, so you can start right away. A full game takes about 10 seconds (measured on ~100-move games; varies with length and connection)
■ MISSED MATES BECOME TSUME PUZZLES
• Mates of up to 7 moves that you missed become puzzles you play out to checkmate against the toughest defense
• Missed mates of 9+ moves and blunders become next-move problems
■ "WHAT IF…?" TRY A MOVE
• Move a piece on the analysis board to see its win rate and your opponent's top 3 replies, then keep playing out the line
■ YOUR OWN PROBLEM SET
• Built only from clear mistakes: a win thrown away, a missed mate, missed material, or a big blunder
• Auto practice serves your newest problems first, with no daily limit. You can also browse by length or situation
• Answer on the board, with hints, then compare win rates with the best move (e.g. 61% → 38%, −23.0%)
• Mark problems Mastered or Review again. Ones you miss come back after 1, 3, 8 and 30 days
■ GAME ANALYSIS
• Win-rate graph, top 3 candidates with win rates, and the best move as an arrow with a replayable line
• The best move's aim in plain words, like "Aims to check and win the rook", and mate lengths like "Mate in 7"
• Key points flag forks, skewers, discovered checks, threatmates and more
• A mark (◎ ○ △ ×) shows whether the last move matched the best move
• Remaining time for both players, when the record includes it
• Game list with mini win-rate graphs, blunder markers and openings, filterable by opening
• Western (P-76) or Japanese notation, and Light, Dark or system appearance
■ EASY TO START
• Free to start, with no sign-up or email needed (free plan: analyze 3 games and try moves in 3 games a day)
• Paste a game record, pick a file, or import via Share. Add several games at once
• Shogi Wars and Shogi Quest game links import directly. KIF files from Lishogi and 81Dojo work too
• No player names? Just pick Sente or Gote. Mid-game starts work, and a position without moves (diagram or SFEN) with a mate of up to 15 moves becomes a problem
■ GOOD TO KNOW
• Formats: KIF, KI2 and CSA (plus USI/SFEN and JKF)
• Adding and analyzing games needs an internet connection. Problems can be solved offline
• In English, Japanese and Chinese (Traditional and Simplified), following your device's language
• Delete your account and all its data from the Account screen. An optional email lets you restore your account on a new phone
■ PREMIUM (AUTO-RENEWING SUBSCRIPTION)
• Unlimited game analysis and what-if moves (automated bulk use may be limited for the day)
• Monthly or yearly plan. Prices are shown in your local currency in the app and on the App Store before you buy. New subscribers get a 7-day free trial
• Payment is charged to your Apple Account when the free trial ends, or at purchase if you aren't eligible for one. Your plan then renews automatically each month or year unless canceled at least 24 hours before the current period ends
• Cancel anytime in Settings → your Apple Account → Subscriptions. Deleting your account in the app doesn't cancel your subscription
Analysis is powered by YaneuraOu with the Suisho 5 evaluation function.
Service names mentioned are trademarks of their respective owners. Shogi Analysis is not an official app of, or affiliated with, these services.
Terms of Use (in Japanese): https://shogi-ai.jp/terms/
EULA (Apple standard): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://shogi-ai.jp/en/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Redesigned Add games: supported services and formats are now clear at a glance
• Until you add your own games, Games now shows how to add them
• Consistent dimming behind sheets and dialogs, easier to read in Dark mode
• Updated internal components for better stability
• Other improvements and bug fixes
The developer, Yusuke Kurokawa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yusuke Kurokawa
- Size
- 54.3 MB
- Category
- Board
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium (Yearly) $24.99
- Premium (Monthly) $3.99
- Copyright
- © 2026 Yusuke Kurokawa