I don't have the exact figure at hand. But you might find out by looking at dedicated manga catalogs or asking fellow manga enthusiasts on online communities.
I'm not sure exactly, but you can check on reliable manga databases or the official publisher's site for the most accurate count.
It's hard to give an exact number. The number of Blue Lock mangas can change over time with new releases. Your best bet is to search on manga-specific platforms or forums for the latest update.
Chapter 426, "How Did Someone Fall Down?!", is the clearest early answer because it turns Shi Xu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Isn't this a bit too risky..." Liu Qian, standing out of the camera's...
Chapter 431, "Su Yinwan Is Here Too?!", is the clearest early answer because it turns Wilderness Survival's situation into a concrete plot event. The chapter gives readers a real answer by opening on [Holy shit, why is Su Yinwan on this show too???] [!!!
Chapter 556, "Five-Year College Entrance Exam, Three-Year Simulation", is the clearest early answer because it turns Ai Xiaochun's situation into a concrete plot event.
Chapter 664, "Record a Major Mistake", is the clearest early answer because it turns Shiguang's situation into a concrete plot event. Early on, Shiguang and Xi Yang are fighting?. By the end, Tai Fan, calm down; don't be so impulsive!" "Ling Bei, let me go!.
Chapter 802, "Gone Again!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Have you checked the fifth floor? and follows through with I say, just call the police right away!.
Chapter 487, "Found a Kindred Spirit?", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event.
Chapter 598, "She Blew Up Your Family's Lake!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 800, "So It Was Her Causing the Trouble!", is the clearest early answer because it turns Meng Wanzhi's situation into a concrete plot event. The chapter turns that into something concrete by moving from You, young lady, how can you be so disrespectful and interrupt when...
Chapter 591, "Is There a Way to Get to the Bottom of the Lake?", is the clearest early answer because it turns Fengshui Array's situation into a concrete plot event. It opens with But my focus isn't that," Jiang Li's tone shifted, "What exactly is...
Chapter 692, "My Ideal Type is Assistant He", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Zhao Lang's gaze stayed fixed ahead as he gripped the steering wheel... and closes on Before the show ended, I had Pei Ye bring her back..