Most realistic strategy game?

I am looking for a strategy board game.?

• In the mid-1960s I got a game for Christmas that I think was called "Walls and Bridges," but I can't find any mention of the game anywhere. It had a molded plastic (thin, almost like celluloid) game board. The playing pieces were of the same material. I think they were red and yellow, but there may also have been blue and green pieces. When in play the game reminded me of a Mondrian painting or a "modernist" skyscraper. As I remember it, you were supposed to block the other player, but at some point you could form a "bridge" and escape the blockade. I know I got this game prior to 1967 because we moved that year, and some of the pieces of the game got lost. The game sounds similar to "Blockade" the precursor of "Quoridor" (neither of which I have ever played), but "Blockade" was not produced until the mid-70s. I don't know what company made my game. Does anyone know what game this might be?

• Answer:

  Wow. A toughie. The gameboard you describe sounds like Hasbro's Bridg-it ( http://www.boardgamegeek.com/boardgame/11052/bridg-it ) but the method of play sounds like 3M/Avalon Hill's Twixt ( http://www.boardgamegeek.com/boardgame/949/twixt ). Let me know if either of these was a good guess.