Here's a proof from Claudette Loire: Chimera - Washed Tortie is dominant to Tiger! - Dusky Green.
Here's a Chimera Washed Tortie pulled from a starter with Tiger Dusky Green.
ChimWashedTortie>TigerDuskyGreen1
But was it REALLY pulled by the Tiger Dusky Green? Or was it REALLY pulled by whatever fur the Tiger Dusky Green is hiding?
And Claudette says to me "The Dusky Green is pure."
And I start with all my speeches which a lot of people have heard me give: "Oh proofs from purity are really hard. Oh it's often easier to pull the hidden on the kitten."
And Claudette says "Here, I'm passing you the boy. You look. He's pure."
So Oberon is over on my land having a sleepover party with my cats. And I'm looking at his pedigree. And what I see is a sea of Russian Whites - even more than what I'm showing you.
ChimWashedTortie>TigerDuskyGreen2
And popping out from under Seraphina and Aegelmaere's shown furs, is a Tiger Dusky Blue. This is obviously a double-recessive throw. Okay, so what's under the Dusky Blue?... Claudette did a backbreed. Kharmen throws hidden - gotten from Aegelmaere - and Aegelmaere throws hidden. [As a thought experiment, try what happens if Aegelmaere hides the Dusky Blue... you'll see it doesn't work out at the pull stage. We'd see Dusky Blue not Dusky Green.]
Voila, the cat is pure Tiger Dusky Green. Just as she said.
Mind you, Claudette knew her cats. I would not have known which was hiding Dusky Blue and which Dusky Green or in which direction the backbreed should go. But when all is said and pulled, she did end up creating a pure Green.
So yes, Chimera Washed Tortie is dominant to Tiger Dusky Green