Barrichello then pushed hard, attempting to leapfrog Schumacher. Children entertained themselves with toys and such games as leapfrog. By August 4, 2014, Saban Brands sold KidZui to Leapfrog Enterprises. The brigades would leapfrog each other as they moved forward. The British 32nd Division, following behind, would then leapfrog the 46th Division. These characters are collectively known as the Leapfrog Learning Friends. There are two primary strengths to leapfrog integration when applied to mechanics problems. A good start saw him leapfrog the Finn into Sainte Devote. The V.Smile Pocket's direct competition is the handheld Leapster by LeapFrog. Resnick sat on the board of directors of LeapFrog Enterprises from 2002 to 2005. Septic's quick reactions allow him to "leapfrog" the other Hurricane, averting a costly disaster. Numerical integration is usually performed over small timesteps using a method such as leapfrog integration. Knowledge Universe acquired a majority stake in LeapFrog in October 1997. In 2008, Evanston Hospital was named to the Leapfrog Top Hospitals list. LeapFrog co-founder Michael Wood became the company's chief executive officer in early 2002.