And here’s why all your circuits should have some kind of reverse-polarity or over-voltage protection: I nearly killed Nibbler yesterday. I brought the hardware to a friend’s house for a nerdfest party, but when I demoed it, I accidentally plugged in the 9V AC power supply from Mozart’s Credit Card instead of the normal 5V DC supply. I’ve gotten lazy with my circuit designs, preferring to use an external regulated 5V supply instead of including power regulation on the board. Nibbler has no voltage regulator, rectifier, reverse-polarity protection, or fuse, so the 9V AC went straight to the power pins on all the chips. Baaaaaad! Playing mastermind Award winning strategy game. Rules take less than a minute to learn. The goal is to cover as much ..

The red slider is pulled out one space. Decoders: if the Decoder breaks the secret code, the Codemaker pulls out the red indicator arm next to the correct combination so that it displays the number 4 and reveals the hidden code by turning the unit around. That game is over. Tally the score and change roles. Creating the Code Evolution: The Beginning is designed for 2-5 players, but plays very strategically as a 2-player game. In this game, players work to adapt their species in an ever-changing ecosystem where food is scarce and predators abundant. It’s similar to the original, Evolution, and the art is just as gorgeous, but this is a stand-alone game.