Pop Tac Toe

Pop Tac Toe

  • Read the rules at the bottom and select the rules.
    For beginners, we recommend: Reincarnation, Continue when All on Board, Move when All on Board, and Move like a King. The computer always plays on a torus. The human goes first as blue. When all the pieces are on the board it is a stalemate. There are two ways to set the difficulty, the think time and the amount of brains the computer uses.

  • Click on     to restart the game without changing the number of checkers.

  • Click on     to restart the game and change the number of checkers.

  • To place a checker, simply drag it to a square on the board. To undo your move, click on  

  • Turn labels  
    Turn Labels:  

  • Highlight moves  
    Highlight Moves:  

  • Next:   Winner:

Rules

  1. Basic Rules: Two players take turns placing a checker on the board on an unoccupied square. When a checker is put on a square, all the checkers (of both colors) on adjacent squares move away one space (horizontally, vertically or diagonally), unless there is another checker directly behind it preventing it from moving away. A player wins if they get three checkers in a row (horizontally, vertically or diagonally).
  2. Mode: Choose to have two human players play or have a single human (blue) play against the computer (red). Currently only torus mode is supported.
    • Mode:    
      Play against our version of Fairy-Stockfish. The source code is here!
    • Easy Hard Impossible
      4.5s
      1 brains
  3. Edge Rules: These rules determine what happens if a checker falls off the side of the board.
      Edge Rules:
    •   When a checker falls off the side of the board, it is returned to the storage bin. It can be placed back on the board on a later move.
    •     When a checker falls off the side of the board, it is out of the game. When a player is reduced to 2 checkers, they lose. If both players are reduced to 2 checkers at the same time, the game is a stalemate.
    •     Checkers cannot fall off the side of the board. If they are pushed in a way where they would normally fall off the side of the board, they instead remain where they are and are not pushed.
    •      When a checker falls off the side of the board, it moves to the opposite side of the board with the order of the rows and columns unchanged.
    •      When a checker falls off the left or right of the board, it moves to the opposite side, on the same row. When a checker falls off the top or bottom of the board, it moves to the opposite side, but with its column reversed.
  4. All on Board Rules: These rules determine what happens when a player has all of their checkers on the board.
      All on Board Rules:
    •       When a player gets all their pieces on the board, they win.
    •     When a player gets all their pieces on the board, the game continues. If movement if not allowed, the game is a stalemate.
  5. Movement Rules: These rules determine when and how pieces can be moved. Checkers can only be placed in unoccupied squares.
    1. When:
        Move When Rules:
      •      When a player cannot place a new piece on the board, the game is a win or a stalemate.
      •   A player can only move a piece when all of their pieces are on the board.
      •      A player can move a piece on any turn.
    2. How:
        Move How Rules:
      •       A checker can be moved 1 space in any direction.
      •      A checker can be moved any number of spaces horizontally or vertically.
      •      A checker can be moved any number of spaces diagonally.
      •      A checker can be moved any number of spaces horizontally, vertically or diagonally.
      •    A checker can be moved to any unoccupied space.
    3. Zero Allowed:
        Zero Move Rules:
      •      A player is allowed to pick up a checker and place it back into the same space.
      •       A player is not allowed to pick up a checker and place it back into the same space.
    4. Jumps Allowed:
        Jump Move Rules:
      •      For Bishop, Rook or Queen moves, a player is allowed to move a checker to any unoccupied space on a row, column or diagonal including those behind other checkers.
      •       For Bishop, Rook or Queen moves, a player is allowed to move a checker only to an unoccupied space on a row, column or diagonal which does not require jumping over other checkers.

© MY Math Apps

Supported in part by NSF Grant #1123255

NSF logo