Shogi Lab: Sunfish Engine

Experience Shogi at its finest, powered by the high-performance Sunfish4 engine. Featuring clean piece designs and a focused, intuitive interface, this app provides a seamless experience from the opening move to the final checkmate. Track your progress with real-time evaluations, replay your matches, and master the game—all within a single app.

Key Features ▪ Real-Time Analysis (During Match)

Monitor evaluation values and visual graphs as you play.

▪ Thinking Time Visualization

See exactly how much time was spent on each move in the history list.

Critical Phase Highlights: Thinking times in the top 5% are marked in red, while the top 15% are highlighted in yellow.

▪ Key Move Detection

Automatically identifies and highlights moves that significantly impact the game's evaluation during both matches and analysis.

▪ Comprehensive Record Analysis

Replay, fast-forward, or rewind your past games for deep review.

Import KIF and CSA files for replay and analysis.

Position Jump: Instantly skip to any specific turn within a game record.

▪ Performance & Customization

Save & Resume: Pause your match at any time and pick up exactly where you left off.

Adjustable CPU Strength: Tailor the engine's difficulty to suit your needs, from casual practice to intense competitive play.

Color Selection: Choose to play as Sente (Black) or Gote (White) from the start.

▪ Intuitive Controls

Undo Move: Quickly take back your last move if you make a mistake.

Legal Move Display: Visual cues show all available moves to help prevent illegal plays.

Haptics & Animations: Enjoy a highly responsive and tactile gaming experience.

▪ Game Modes

Online Multiplayer: Compete in ranked matches against players worldwide.

Versatile Offline Play: Challenge the CPU or use the local two-player mode to play with a friend on a single device.