Two players take turns placing straight 3-cell blocks on a 4×4 board, building upward. The winner of each view is the player whose visible cubes form more lines of 4 — orthogonal or diagonal — seen from that direction. Win the views, win the round.
The board is scored from 5 fixed directions: Top, North, East, South and West. Each view is a 2D projection of the outermost visible cubes.
Every placement must:
Use X / Y / Z and Flip to orient, Nudge (←/→) to slide, then Place to confirm.
A new block must be perpendicular to every block it touches face-to-face — all 6 directions, including vertical. Parallel contact is not allowed. Same-axis blocks are fine as long as they don't touch.
A cell is stable if it's on the ground or has a cell directly beneath it. A horizontal beam needs its middle cell supported, or at least 2 of its cells supported — a one-end cantilever is rejected.
The round's first block must touch the floor and cover the marked START square.
In each view, count each player's lines of 4 consecutive same-color visible cubes. Whoever has more lines wins the view — 1 point, a tie scores 0–0. Win more views than your opponent to win the round. Rounds are unlimited; round wins accumulate as the score.
All modes are played on this device.