MEIJIN
Four Halls of Battle
TutorialCPU battle mode with generous piece-handicap advantages for beginners. Step into the world of shogi by experiencing the joy of winning first.
Client-side engine with alpha-beta search + transposition table (TT) + killer moves. Runs fully offline via Web Worker. 10 skill levels from Lv.1 to Lv.10, plus 10 handicap variants.
Offline · No LoginExclusive mode for Lab2Aid BASIC subscribers. MEIJIN-specific premium features will be added progressively. All other BASIC apps included.
BASIC $2/moMode for Lab2Aid PRO subscribers. Unlimited PRO-only Vision AI, 200 monthly Labcoins, priority support, and early access to new features. For users wanting more complex, higher-precision answers.
PRO $22/moHigh-precision mode using Labcoin. Advanced MEIJIN analysis features coming soon. Coins are also usable in other AI Coin compatible apps.
1 Labcoin / useTen Strikes of the Bell
| Technology | Description |
|---|---|
| α-β探索 | Alpha-Beta pruning — prunes unnecessary branches for efficient search. Reduces nodes at the same depth to find the best move faster |
| 置換表 (TT) | Transposition Table — records previously searched positions via hash and reuses them. Eliminates duplicate calculations for transposed move orders |
| Killer Moves | Prioritizes moves that were strong in previous sibling nodes. Significantly increases β-cutoffs |
| Null-Move Pruning | Inserts a virtual pass to quickly obtain a lower bound. Early pruning of positions that are almost certainly bad |
| 反復深化 (ID) | Iterative Deepening — searches from shallow to deep progressively. Balances time management with move ordering accuracy |
| Web Worker | Runs engine computation in a background thread. Thinks deeply without freezing the UI |
Ten Levels of Handicap
What's Supported
Implemented
Coming Soon
The Temple's Gifts
Engine computation runs entirely on-device via Web Worker. No internet required for CPU matches. Play a quiet game anywhere.
Available in 18 languages — Japanese, English, Chinese, Korean, Spanish, and more. Bringing shogi to fans worldwide.
Two-player mode on a single device (Pass-and-play). Pass your device to your opponent and enjoy the traditional match format with friends and family.
Choose your AI's playing style freely. Aggressive, defensive, balanced, and more — analyze positions in a variety of styles.
Progressive Web App. Works on smartphones, tablets, and PCs. Add to your home screen to use it like a native app.
Japanese-modern design. Immerse yourself in the world of shogi with a dignified black-and-gold board UI. Intuitive for beginners and experts alike.
Login & Access
Authentication powered by enterprise-grade identity provider Zitadel. Supports Google / Apple social login. Start playing instantly — no email required.
Add to home screen via Chrome / Safari for a native app experience. Supports iOS / Android / Windows / macOS. CPU matches are also playable offline.
Plans & Offerings
- CPU battles Lv.1–10
- Pass-and-play (2 players, 1 device)
- 10 handicap types
- 18 languages
- Fully offline
- PWA (add to home screen)
- All free features
- All Lab2Aid BASIC apps
- Upcoming MEIJIN premium features
- All BASIC features
- Unlimited PRO-only Vision AI
- 200 Labcoins automatically granted monthly
- Priority support + early access to new features
- Major LLMs: OpenAI / Gemini & more
- MEIJIN high-precision features (in dev)
- Usable in other AI Coin apps