NN666Line

Build a line. Read the board. Make the next move count.

This focused offline strategy game brings classic gravity-based four-in-a-row to a clean, tactile board for short matches at home or on the go.

PLAY YOUR WAY
Choose a local rules opponent across three difficulty levels, or pass the device to a friend for a two-player match. Every piece falls to the lowest open space, so each move changes both attack and defense.

THINK BEFORE YOU DROP
Preview a column before committing your piece. Spot horizontal, vertical, and diagonal lines, block immediate threats, and create double threats of your own. Full columns are clearly marked so your turn stays predictable.

PRACTICE WITH PURPOSE
Work through 36 tactical drills in three groups: Win in One, Only Defense, and Double Threat. Each position has a clear goal to help you sharpen recognition of the moments that decide a match.

REVIEW THE RESULT
When a match ends, the exact winning four are highlighted. Replay the move history one step at a time, start a rematch, or return to the mode menu for a new challenge.

LOCAL AND PRIVATE
Unfinished boards, preferences, match statistics, and drill progress stay on your device. No account, network connection, chat, ads, payments, or leaderboard is involved.