Goal

Align the five coloured planets in the correct order and moon phase within six turns. Each colour is unique, and every planet has a moon showing either full, crescent, or new phase. Planets are revealed progressively as you explore deeper into the star system.

How to Play

1. Start with only 3 planet positions visible. More positions unlock as you progress.
2. Pick colours from the palette to fill the currently revealed planet positions.
3. Tap a planet you placed to cycle its moon phase between full, crescent, and new.
4. Use the undo button if you want to remove the most recent planet.
5. Lock in the row to receive instant highlights on each revealed planet.
6. Green means colour and moon phase are perfect. Yellow means either the colour or the moon phase is on the right track. No glow means both are off.
7. Perfect planets drop straight into the next row so you can focus on the remaining slots.
8. New planets are revealed in rounds 2 and 3, adding to the challenge.
9. Use the highlights to refine your next guess. You have at most 6 attempts.

Progressive Exploration

• Round 1: Only the first 3 planetary positions are visible.
• Round 2: The 4th position is revealed and becomes available to guess.
• Round 3+: The final 5th position is revealed, showing the complete star system.

This simulates approaching a distant star system and discovering planets as you get closer.

Planet Highlights

• Green: The planet's colour and moon phase are exactly right.
• Yellow: Either the colour is correct in a different slot, or you matched the slot's moon phase.
• Dim: Neither colour nor moon phase contributes to the solution.

Highlights update per planet, replacing the classic Mastermind pegs while keeping the same deduction flow.

Daily Challenge

A fresh sequence is available every day. Your in-progress game is saved locally, so you can return later and pick up where you left off.