Extra Blokus 1.3 [免费版]

Blokus is played on a square board divided into 20 rows and 20 columns, for a total of 400 squares. There are a total of 84 game tiles, organized into 21 shapes in each of
four colors: blue, yellow, red and green. The 21 shapes are based on free polyominoes of from one to five squares.
The first piece played of each color is placed in one of the board's four corners(left-bottom). Each new piece played must be placed so that it touches at least one piece
of the same color, with only corner-to-corner contact allowed—edges cannot touch. However, edge-to-edge contact is allowed when two pieces of different color are
involved.
When a player cannot place a piece, he or she passes, and play continues as normal. The game ends when no one can place a piece.

• 05/19/2018: Extra Blokus 1.3
• 05/12/2018: Extra Blokus 1.1
• 报告一个新版本