Beginner Tigress Level 1 (Ages 9+ years). This is a 60 minute class that focuses on teaching girls ages 9-18 the basics of vault, bars, beam, floor, and trampoline while building core strength at the same time. This class is based off USAG Level 1 skills in order for athletes to advance in the sport of gymnastics.eginner Tigress Level 1 (Ages 9+ years). This is a 60 minute class that focuses on teaching girls ages 9-18 the basics of vault, bars, beam, floor, and trampoline while building core strength at the same time. This class is based off USAG Level 1 skills in order for athletes to advance in the sport of gymnastics.
In the 1950s, mathematician Claude Shannon wrote a paper about how one could program a computer to play chess. In it, he made a quick calculation to determine how many different games of chess were possible, and came up with the number 10^120. This is a very, very large number -- the number of atoms in the observable universe, by comparison, is only estimated to be around 10^80.
To be precise, the number of distinct chess positions after moves for, 2, ... are 20, 400, 5362, 71852, 809896?, 9132484?, ... (Schwarzkopf 1994, OEIS A019319). The number of chess games that end in exactly moves (including games that mate in fewer than plies) for, 2, 3, ... are 20, 400, 8902, 197742, 4897256, 120921506, 3284294545, ... (OEIS A006494). Cunningham (1889) incorrectly found games and positions after the fourth move.