Circle GameDifficulty
Who starts first
Timer
Map
Wins don't count for leaderboard/achievements.
If you take exactly 2 circles in one move, it stays your turn. The computer plays by the same rule.
Each turn, a die rolls 1–5. You can take at most that many circles that turn.
Some circles are armoured (red). They must be taken twice — first hit damages them (orange), second removes them.
Linked circle pairs — take one and the other is taken too. Beware the kill circle (black/red) — take it and you lose instantly.
Circles collapse downward like sand after removal. Unsupported circles fall — 50/50 left or right if both sides are open.
After each move, pick your leftmost or rightmost removed circle — it cascades upward, removing that same column position in every row above.
💀 Mode Modifiers
Enable a game mode above to see its modifiers.
Player 2 name:
Map
Each turn, a die rolls 1–5. You can take at most that many circles that turn.
Take exactly 2 circles and it stays your turn.
Some circles need two hits to remove.
Linked pairs + kill circles.
Circles collapse downward after removal.
After each move, pick a side to cascade-remove upward.
Map (when creating)
Each turn, a die rolls 1–5. You can take at most that many circles that turn.
Take exactly 2 circles and it stays your turn.
Some circles need two hits to remove.
Circles collapse downward after removal.
Linked pairs + kill circles.
After each move, pick a side to cascade-remove upward.
🧩 Nim Puzzles
You'll see a board where the position is not safe. Find the move that puts you in a winning position.
Solve 5 puzzles per set. You earn 1 point for each correct answer.
Need help? Check the Strategy tutorial to learn the math behind it.
The player who takes the last circle loses!
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How to Play
Scoreboard
Achievements