NN666Sentinel

Use numbered clues to map safe ground in short, offline logic sessions.

Choose beginner, intermediate, or advanced fields, explore 60 fixed maps, or play a date-seeded daily layout. Progress through three chapters: map 21 introduces an irregular playable contour, and map 41 adds a revealed safe boundary. Each field begins with a safe first reveal, and layouts are checked for a deduction path before play.

Reveal clear ground to open connected safe tiles. Read each number as the count of nearby hazards, place and revise markers, and compare overlapping clues to prove safe moves. Marker mode, long-press controls, pause, a running timer, and marker undo help keep each reading deliberate.

Explore a guided practice board, review a triggered hazard with nearby clue highlights, and see your time and misplaced markers after a clear. Your current board resumes with its layout and progress intact.

Personal records include completion times by field size, fixed-map progress, and a local completion calendar. Adjust tap-to-mark mode, sound, motion, dark colors, and clue assistance to your preference.

No account is needed. Boards, preferences, and records stay on your device, and the game works offline.