Rough grabbing or seizing; refers to free-style practice, often with multiple attackers, in judo and sometimes in aikido. Randori is usually required as part of dan examinations. In TOMIKI AIKIDO, there are two types of randori which comprise the basis of the system of free practice which allows for competition. The first form, toshu randori, is similar to judo, with both competitors using offense and defense in an attempt to execute appropriate aikido techniques. Toshu randori is now infrequently practiced in its competitive form and has been largely replaced by tanto randori, in which one competitor is armed with a mock knife, which is exchanged after a one and a half or two-minute half. Points can be scored either with a successful strike with the knife, or by the application of aikido techniques.