Connect Four on 6 high, 7 wide grid, there are 4,531,985,219,092 positions for all game boards populated with 0 to 42 pieces. The game was first solved by James Dow Allen (October 1, 1988), and independently by Victor Allis (October 16, 1988). Allis describes a knowledge-based approach, with nine strategies, as a solution for Connect Four. Allen also describes winning strategies in his analysis of the game. At the time of the initial solutions for Connect Four, brute-force analysis was not deemed feasible given the game's complexity and the computer technology available at the time. Connect Four has since been solved with
Untitled (How Does It Feel) reviews from music critics and it earned D'Angelo a number of awards. "Untitled (How Does It Feel)" also earned notice for its controversial music video. Directed by Paul Hunter and Dominique Trenier, the video consists entirely of one shot featuring a muscular D'Angelo appearing nude and lip-synching to the track. While initial reaction from viewers was divided with praise for its sexuality and accusations of sexual objectification, the video received considerable airplay on music video networks such as MTV and BET, and it helped increase mainstream notice of D'Angelo and "Voodoo". The music video for "Untitled (How Does It Feel)"