Wow, great stuff all around. Clean steps, smooth action, intuitive logic wrapped up in a great looking setting. Found Spoiler an "alternate ending" where you can use the slider to point R in the right direction for B to herd him to the win. Not nearly as elegant as your video.
Fun level with very nice design... Thanks for sharing @Chasano222 Btw,I did one step different but with logic,no tricks
thanks for rate and play @Block builder , @Jóh , @Br0K3N , @ridgerunner. @delator77 :did you use one different step like @Don G Rowe "alternate ending"?
This is a marvelous puzzle! The kind of stuff I just love! No difficult tricks to perform, just good intuitive logic and everything running smoothly! Superlative job