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) "Untitled (How Does It Feel)" entered the Hot 100 Singles at number 77 and spent 17 weeks on the chart. The song was well received by music critics. Miles Marshall Lewis of "The Village Voice" commented on its Prince influence, stating "D's falsetto plays the "Do Me Baby"-era chocolate-seduction Prince role", while Mark Anthony Neal of PopMatters described the song as "simply the best Prince song since his "Diamonds and Pearls" days". Neal cited "Untitled (How Does It Feel)" as the best track featured on "Voodoo", and praised D'Angelo's style, stating "arguably Prince has never sounded better channeled through D'Angelo."