Arasan Engine Integration

Equipped with precise analysis by the powerful 'Arasan' engine. Pursue the best move while objectively grasping the tide of battle with the real-time evaluation graph.

Beautiful 2.5D Board & View Switching

Switch anytime between immersive 2.5D visuals and highly visible flat (2D) views. Legal move highlighting prevents errors, letting you focus on the match.

Precise Visualization of Thinking Time

Displays thinking time for each move in the game record. Highlights long deliberations in red (top 5%) or yellow (top 15%). Combined with blunder highlighting, review points are instantly clear.

Advanced Game Review

Instantly jump to any position from the game record. With playback, step-back, and step-forward controls, you can study past matches in detail.

Online Matches & Rankings

Play real-time matches with players nationwide and aim for the top of the rankings. Match history and performance data are also recorded in detail.

Multi-stage Adjustment Lv.1–Lv.30

Select CPU strength from 30 levels. Features like side selection, UNDO, and suspend/resume support your playstyle.

Support & Engine

For feedback or bug reports, contact us at:

[email protected]

Engine: Arasan (MIT License)
Full support for all international rules.

Privacy Policy

We prioritize protecting your privacy.

Online Features: Temporary identifiers are used for matchmaking and rankings.
Personal Data: We do not collect personal information such as names or email addresses.
Offline Support: CPU matches and local 2-player matches operate completely offline and do not transmit data.

Chess Lab

Ultimate Match & Analysis Features