Jigsaw Puzzles Block is the best jigsaw puzzle game for Windows, with over 20,000 puzzles. It has all the features you would expect from a jigsaw puzzle game. You can use your mouse to move pieces, zoom in and out, and rotate the pieces. There are different difficulty levels and you can also change the background color and the background image. The game also has different puzzle types such as picture puzzles, word puzzles, and logic puzzles. You can also use your webcam to add a photo as a background image. You can also add your own background music, and change the background image to the one you want. There are also different types of themes. You can also use the built-in timer to set the time limit. You can also play with your friends. You can also share your best scores with your friends on Facebook. The game is a great choice for all jigsaw puzzle fans.