Build the value
00010011
Tap cells on or off. Each place has a value—128 through 1—and the lit cells add up to your answer.
Field guide / 001
Learn the register.
Your objective is always visible: transform the eight-bit register until its value matches the target. Intercept Echo introduces each operation before combining them.
Move every bit
00100110
Shift left to double; shift right to halve. A bit pushed over an edge disappears, so plan before you move.
Wrap the edge
10001001
Rotate moves every bit too, but the bit at the edge loops around instead of being lost.
Decode protocol
Crack letters.
Protect your signal.
Pick a blank in the intercepted message. Solve its register puzzle to reveal the letter and earn points. Miss the target and the transmission consumes signal.
Look for structure
Repeated letters and familiar word shapes are valuable clues.
Use fewer moves
Efficient solutions earn better scores. The shortest path matters.
Guess when ready
Recognize the transmission early? Risk a whole-message guess.
No binary background is required. Start with Count and the game will teach you the rest.
Training complete