Tic-Tac-Two States Rev. 1.9
Choose a game
🔮 The Oracle
Standard
Take turns placing your mark. Three in a row wins. Against the computer you are X and move first.
Quantum
Spooky marks. On your turn tap two different open squares: your mark (X₁, X₂…) goes into both at once and stays "spooky" — it hasn't decided where it really is.
Entanglement. Squares that share a spooky mark are linked. When a new mark links squares that were already linked through a chain of others, a loop forms.
Collapse. The moment a loop forms, the other player chooses which of the newest mark's two squares it settles in (those squares pulse). That forces every other mark in the loop to settle too, in a chain reaction. Settled marks are permanent.
Winning. Three settled marks in a row. If a collapse completes lines for both players at once, the line finished by the lower-numbered marks wins. When only one square is left open, a single mark is placed there normally. A full board with no line is a draw.
The Oracle
Your optional advisor in the vs-Computer games. Tap 🔮 to open it; it stays on duty at the start of each of your turns until you close it. It uses minimax — for each move you could make it imagines every reply, every answer to that reply, and so on, both sides playing their best — and ranks your moves. In Standard it sees to the end of the game, so every square is tagged Win, Draw or Loss. In Quantum it looks several moves ahead within about four seconds: green Win in n / red Loss in n when it can see the end, an amber score otherwise (bigger is better for you). When you must choose a collapse, it advises on that too. The best move is highlighted gold on the board; tap another option in the list to see it. The Oracle only advises you; the computer plays its own way regardless.