The Probability of Unplayable Solitaire (Klondike) Games

The Solitaire game Klondike has a few idiosyncracies: not all Klondike games are solvable. Moreover, Klondike sometimes produces unplayable games. In such cases no moves are available to the player even at the beginning of the game. The probability of occurrence of unplayable games is an important number as it is a lower bound for […]

Why Windows is a Security Nightmare

Security in all mainstream operating systems is non-existent; however, things are especially bad for Windows. Windows happens to be the favorite target of worm and virus writers. Conventional wisdom suggests that the huge installed base of Windows helps spread the worms and viruses, and also makes it a highly attractive target for worm/virus writers. The […]