Shogi Lab
Equipped with the high-performance Shogi engine "Sunfish4". Featuring a maximized board for deep immersion, allowing you to enjoy every move from opening strategy to endgame tactics. Play, review, and analyze—everything you need for Shogi research in one app.
Download on App Store
Professional Analysis Features
Sunfish4 Engine & AI Support
Harness the sharp insights of the "Sunfish4" engine. Stuck on your next move? The "AI Support" (Auto-move) feature assists your learning by taking over when you need it most.
Real-time Evaluation Graph
Monitor the tide of battle with a live evaluation graph and score. Moves that significantly shift the advantage are highlighted, making it easy to identify critical turning points.
Precise Thinking Time Visualization
Thinking time for each move is recorded in the kifu (game record). Long pauses are highlighted in red (top 5%) or yellow (top 15%), allowing you to objectively analyze your reading rhythm.
Advanced Kifu Analysis
Jump to any position instantly by tapping the game record. Effortlessly review past matches with play, back, and forward controls to perfect your strategy.
Online Matches & Rankings
Compete in real-time with players worldwide. Track your progress with a comprehensive ranking system based on your match performance.
Flexible Lv.1–Lv.20 Adjustment
Choose from 20 difficulty levels to match your skill. With features like UNDO and side selection (Sente/Gote), you can tailor every match to your preference.
Gameplay Preview
Support & Engine
For bug reports or feedback, contact us at:
whistextapp@gmail.com
Engine: Sunfish4 (MIT License)
Optimized for maximized board and full-screen view.
Privacy Policy
We prioritize and protect your privacy above all else.
- Online Features: Temporary identifiers are used solely for matchmaking and rankings.
- Personal Data: We do not collect names, email addresses, or any other personal information.
- Offline Play: CPU matches and local 2-player mode operate entirely offline; no data is transmitted.