After the 21-27 line you cant protect your king afterwards, resulting in an even position.

after 27-21 and 33-39, the move sequence 30-34, 48-43 and 42-38 also lead to a winning position.

According to scan, the position that results after the shot is considered equal. Not executing the shot also results in an equal position.

after 4-10 15x2 the move 13-18 is also winning

after 24-29 the move 9-13 is also winning.

13-18 is also winning

The variation with 24-29, followed by a direct 17-21, whilst being considered correct, has a weird stopping point, stopping in the middle of a white capture.

28-23 is considered a correct solution, but according to scan, it only leads to an even position. 37-31 is also considered correct, but that actually leads to a winning position for white.

For the final capture, the 2x19x32x49x35x19x5 capture is considered wrong, despite capturing all of blacks pieces. In fact, after I try that path, even the "correct" capture sequence is called wrong, …

3..9-13, 30-34 and 18-23 is also winning