I think I found a slight mistake. To be precise, in cage 10, there is no need to R5C2 = R4C3, because it could be R5C2 = R6C3 with the same result. So you excluded a possibility to early. But it did not worked when I tried, so your solution is the only one works.
![[LIVE] : ONE ลุมพินี 83 วันนี้!! คู่เอก "พันฤทธิ์ vs ซุปเปอร์บอล วันของโอม MBK"](http://i.ytimg.com/vi/1b4pkKHa_Fk/mqdefault.jpg)
9:34 This one felt most intuitive of the series for me. The region sum fusion puzzle was probably my favourite.
That was fun. Easier than the last ones I think.
Interesting puzzle and nice solving by Kathy.
Cat's can be very critical of their humans.
Completed in 2m53s.
I think I found a slight mistake. To be precise, in cage 10, there is no need to R5C2 = R4C3, because it could be R5C2 = R6C3 with the same result. So you excluded a possibility to early. But it did not worked when I tried, so your solution is the only one works.
R5C2 cannot equal R6C3 since they are in the same region.