CHANGES IN fun VERSION 0.3 BUG FIXES o Fixed the warnings about `sprintf()` from the current R-devel. CHANGES IN fun VERSION 0.2 BUG FIXES o Misc bug fixes. CHANGES IN fun VERSION 0.1-0 NEW FEATURES o R can perform t-test, F test and so on, but sometimes we use R to test Alzheimer's disease; see alzheimer_test() o lights_out() to play the "Lights Out" game o mine_sweeper() to play the Minesweeper game o sliding_puzzle() to play the Sliding Puzzle o tower_of_hanoi() to watch the game Tower of Hanoi o gomoku(), the game of ``Five in a row'' o and other interesting functions