Othello behind Cassio and badly cuts his leg. In the darkness, Iago manages to hide his identity, and when Lodovico and Gratiano hear Cassio's cries for help, Iago joins them. When Cassio identifies Roderigo as one of his attackers, Iago secretly stabs Roderigo to stop him revealing the plot. Iago then accuses Bianca of the failed conspiracy to kill Cassio. Othello confronts Desdemona, and then strangles her in their bed. When Emilia arrives, Desdemona defends her husband before dying, and Othello accuses Desdemona of adultery. Emilia calls for help. The former governor Montano arrives, with Gratiano and Iago. When Othello mentions
United States Othello Association United States Othello Association The United States Othello Association (USOA) is connected with the (trademarked) game of Othello, which is closely connected with the historical game Reversi. The following quote appears in an old issue of its journal, the "Othello Quarterly": "Membership in the United States Othello Association (USOA) is available to all residents of the United States. The USOA is a nonprofit corporation dedicated to the advancement of the game of Othello in the United States; its activities include conducting, sponsoring, or sanctioning tournaments, maintaining a national rating system for active players, and publishing instructional materials, including OTHELLO QUARTERLY."