圈圈之地

How to Play

Goal: Form a 2×5 rectangle, a 5×2 rectangle, or a 3×3 square to win immediately!
Pieces: 28 L-trominoes each (3 squares in an L shape). Press R to rotate before placing.
Connection: Every new piece must touch an existing piece (diagonal counts). Your first move is free.
Check: A red CHECK! banner warns when any player can win on their next turn. Every other player must block.
Tiebreaker: If pieces run out, the player with the most claimed 2×2 squares wins. Claimed squares show a white outline centered where four cells meet.

翻譯：

**如何遊玩**

* **目標**：組成 2×5 的長方形、5×2 的長方形，或 3×3 的正方形即可立即獲勝！
* **棋子**：每人各有 28 個 L 形三格骨牌（L-trominoes，由 3 個方格組成 L 形）。放置前可按 R 鍵進行旋轉。
* **連接**：每一枚新下的棋子都必須與現有棋子相鄰（對角線也算）。你的第一步不限位置。
* **聽牌警告（Check）**：當任何玩家在下一回合就能獲勝時，畫面上會出現紅色的「CHECK!」橫幅提出警告。其餘所有玩家都必須進行阻擋。
* **平手決勝局**：如果棋子耗盡，佔領最多 2×2 方格的玩家獲勝。被佔領的方格會顯示一個白色外框，位於四個格子交會的正中央。

我在玩了幾局後的一些感想：
一，手機端不知如何旋轉。

二，這種像六子棋一樣有成形獲勝的棋，似乎不適合做成多人遊戲。當然我沒有測試過多人，或許在測試過之後會改變看法。

三，先手第二回合不能碰第一手棋，那麼是否可以認為如果能的話先手必勝？那麼後手方是否因此具有優勢？則如何調整使遊戲成為公平弈棋仍然是個難題。

四，是否考慮如果形成五乘二或三乘三矩形時，只是加一個大的分數，而不是直接獲勝？

代码：全选

Here are some thoughts after playing a few matches: First, I couldn't figure out how to rotate pieces on mobile. Second, abstract strategy games like this, where you win by forming a specific shape (similar to Connect6), don't seem well-suited for multiplayer. Of course, I haven't tested multiplayer yet, so my opinion might change after trying it. Third, the first player cannot touch their own first move on the second turn; does this imply that the first player would have a forced win if they could? And does that give the second player an advantage as a result? Figuring out how to adjust the game to make it a fair match remains a challenge. Fourth, have you considered making the formation of a 5x2 or 3x3 rectangle award a large point bonus instead of an immediate win?

另一個遊戲：https://www.looneylabs.com/rules/homeworlds

圈圈之地

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