Allow me to rectify my earlier error. Egypt must win by 3 clear goals i.e. 3-0, 4-1, or 5-2. If we win by a margin of 1 goal, we are eliminated. A 2 goal margin would render both us and Algeria equal on points, goals scored, goal difference, etc...
Thus, a victory with a 2 goal margin would result in a coin toss, or a playoff (probably the latter) on neutral turf. The last time this happened to Egypt was in 1993, when Egypt had to play a one-off game against Zimbabwe (after the result of the first game was annulled due to crowd violence) to determine who would progress to the final qualifying round in the African section. We had managed to sneak by the Zimbabweans (led by the disgusting slime ball Grobellar) in the match that was later annulled, and in the replay we failed to score, thus compromising our chances of qualification, and handing/ceding the ticket to the final round, and the last spot, to Zimbabwe. I sincerely hope a playoff wouldn't be needed, but given the circumstances, I would opt for it right now, as I don't see us beating Algeria by 3 clear goals, and obviously it is the lesser of 2 evils (the other being elimination). I would also love to see us avenge our elimination at the hands of Algeria in an earlier qualification campaign (2002 qualifiers, when a draw against them cost us a place in the WC, and paved the way for Senegal to qualify).
Hence, we are in a precarious, albeit not impossible situation. Should we somehow manage to accomplish the highly improbable feat of defeating Algeria by 3 goals, we are in the World Cup for only the 3'rd time in our history.