Graham Potter's Seagulls had 20 shots on goal but paid the price for some wayward finishing as part of a contest in which they also hit the post three times.
Leeds then had chances to snatch victory in the closing stages through Tyler Roberts but the contest ended goalless, Leeds moving on to 12 points for the Premier League campaign after 13 games played.
Graham Smyth, the YEP's chief football writer, hands out the scores from the clash at the Amex.
7. Junior Firpo
3 - Lucky to stay on until half-time. Lamptey and an early yellow card gave him a nightmare. Couldn't handle the winger, struggled in possession too. Photo by Charlie Crowhurst/Getty Images.
8. Dan James
5 - Lots of runs, not a lot of impact. Couldn't give Leeds a presence up front. Kept showing for the ball. Photo by Charlie Crowhurst/Getty Images.
9. Jack Harrison
4 - Couldn't get anything going. Looked shy of confidence on the ball. The left side was a real problem in the first half. Photo by GLYN KIRK/AFP via Getty Images.
10. Raphinha
5 - Another who couldn't leave his mark on the game. Leeds didn't find him most of the time but even when they did he did little with the ball. Photo by Charlie Crowhurst/Getty Images.
11. Rodrigo
5 - Unable to get in the game at all for most of the first half. Slightly more influential in the second but impact was still minimal. Looked to be struggling late on. Photo by Charlie Crowhurst/Getty Images.
12. Jamie Shackleton (sub)
5 - Found it really hard in possession, gave the ball away, dangerously at times. Photo by GLYN KIRK/AFP via Getty Images.