BLOCKADE VS CONNECT FOUR

Blockade (also known as Cul-de-sac) is a strategy board game for two players with the motto "beat the barrier". It's played on a board with an 11x14 grid of spaces, barriers and 2 mobile playing pieces per player. The object of the game is to maneuver ones pieces around barriers and into the opponents starting spaces. The game is long out of production. Blockade was created by Philip Slater in 1975. In United States, it was published by Lakeside under the name Blockade. In France, Germany, Sweden, and United Kingdom the game was published by Lazy Days under the name Cul-de-sac (French, translation dead-end). The rules are simple, but it provides an interesting and deep game. Each player are given 2 pawns, 9 green walls (placed vertically), and 9 blue walls (placed horizontally). Pawns are placed on their starting locations on each of the four corners of the 11×14 board. First players' starting location is at [4,4] and [8,4], and the second players' is at [4,11] and [8,11]. The object of the game is for each player to get both their pawns to the starting locations of their opponent. The first to do so wins. On each turn, a player moves one pawn one or two spaces (horizontally, vertically, or any combination of the two) and places one wall anywhere on the board (useful for blocking off their opponent's move). Walls always cover two squares and must be placed according to their color (vertically or horizontally). Pawns may jump over other pawns that are blocking their path. Once players are out of walls, they keep moving pawns until one wins.

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Connect Four (also known as Four Up, Plot Four, Find Four, Captain's Mistress, Four in a Row, Drop Four, and Gravitrips in the Soviet Union) is a two-player connection board game, in which the players choose a color and then take turns dropping colored discs into a seven-column, six-row vertically suspended grid. The pieces fall straight down, occupying the lowest available space within the column. The objective of the game is to be the first to form a horizontal, vertical, or diagonal line of four of one's own discs. Connect Four is a solved game. The first player can always win by playing the right moves. The game was first sold under the Connect Four trademark by Milton Bradley in February 1974. Connect Four is a two-player game with perfect information for both sides. This term describes games where one player at a time plays, players have all the information about moves that have taken place and all moves that can take place, for a given game state. Connect Four also belongs to the classification of an adversarial, zero-sum game, since a player's advantage is an opponent's disadvantage. One measure of complexity of the Connect Four game is the number of possible games board positions. For classic Connect Four played on 6 high, 7 wide grid, there are 4,531,985,219,092 positions for all game boards populated with 0 to 42 pieces. The game was first solved by James Dow Allen (October 1, 1988), and independently by Victor Allis (October 16, 1988).

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