這是三角棋[1]
開始時共有 15 個圈圈，玩家可以畫一個直線，只能消掉相鄰的一到三顆。
輪流畫到最後一顆的人輸。

此程式證明了有第一手有九種開局都存在必勝路徑，扣掉旋轉則為三種。

This is Triangular Nim[1] game.
There are 15 circles at the beginning, and the player can draw a straight line and eliminate one to three.
Take turns to eliminate the person who draws the last one loses.

This program proves that there is a winning path for all nine openings with the first move.

以下是九種存在必勝路徑的第一手。
The following nine openings all has a winning path.

• 0
• 3
• 4
• 5
• 7
• 8
• 10
• 12
• 14

跟電腦玩。
Play with computer.

python3 src/TriangularNim.py

跟電腦玩，顯示機率。
Play with computer and show probability.

python3 src/TriangularNim.py --probability or -P

計算必勝開局展示。
Count best move demo

python3 src/TriangularNim.py --demo or -D