Strategy puzzle
Color Flood Duel
Claim more of the board than AhaBot by picking colors wisely — every move shows the gain and the reply it invites.
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The rules in plain words
- Two regions share one colored grid: yours in the top-left, AhaBot’s in the bottom-right.
- On your turn, pick a color neither region currently owns.
- Your region grows by absorbing every edge-adjacent cell of that color, and keeps growing through connected cells of your own color.
- AhaBot then takes its turn with the same rule.
- The duel ends when no playable color remains; the larger region wins.
- Every color also carries a number and pattern, so no choice depends on color alone.
How to play
You and AhaBot share one board
Your region starts in the top-left corner, colored mint. AhaBot starts in the bottom-right. You always move first.
Pick a color to grow
Choose any color neither of you currently owns; your region absorbs every touching cell of that color.
AhaBot answers
The bot replies with its own color choice, using the same rule from its corner. It is deterministic — the same position always gets the same reply.
Claim the larger share
When no free color remains, whoever owns more of the board wins. Cells with color-vision differences can rely on the number and pattern labels.
What this game practices
Think one step past your own move.
- Choose a play that grows your ground and limits the best reply
- Balance taking cells now against keeping options later
- Change plans when the board answers differently than expected
Privacy, in short
No account, no ads, no chat. Your progress stays on this device and can be cleared from inside the game at any time. Read the full privacy page