Stable: [current position] b cannot resist with t8 in this position because it puts his group in atari. That’s because the connection was a mistake, it should have made the eye with t8 immediately
Ivan Detkov: Your variant makes more sense. I modified the solution.
Stable: [current position] in this position a4 is given as the only correct move, missing that the defending stones are in atari. I suggest giving that group an outside liberty to maintain the lesson of the problem.
Your variant makes more sense. I modified the solution.