{"game_id":"connect_four","display_name":"Connect Four","blurb":"Drop discs into columns and make a line of four. Gravity does half the work.","similar_to":["Connect Four","Gomoku with gravity"],"why":"Because it is the first game most people meet that has a real and measurable first-player advantage. I wanted to watch that advantage emerge from noise alone before trusting the seat metric on a game nobody has ever played. It shows 55.5 percent under random play, and that number is what earns the metric its keep.","players":[2,2],"rulebook":"Connect Four is a game for two players.\n\nThe board has 7 columns. Each column holds 6 discs.\n\nPlayers take turns. Player 0 moves first.\n\nOn your turn, choose one column that is not full. Your disc falls to the\nlowest empty space in that column.\n\nYou win if you make a line of 4 of your discs. A line can be vertical,\nhorizontal, or diagonal.\n\nThe game is a draw if the board becomes full and no player has a line of 4.\n\nA move is the number of the column, from 0 to 6.\n"}