[CrazyHouse] A way for black to avoid check mate ?

I tried all the possibilities for black but i didn't find a way to avoid the check mat. I was white and i was pretty happy to sac my rook in this game, but maybe it's not just good to lost that piece because there is a way for black to avoid the check mat.
I didn't find it if there is one in game. Thanks, and sorry for my very approximate english

http://fr.lichess.org/iPvlZQlV/white#24

the answer is yes and no. black cant avoid mate but can avoid mate the way u played, by playing 15... d5-d4 blocking the diagonal and u dont have a mate for a while. However u had something better , now stay with me , its a bit long
15.@g7 Kxg7 16.Nxe8 Kf8 17Qg7 Kxe8
(17... Ke7 18.Qf6 Kxe8
( 18...Kf8 19.R@h8 B@g8 20. Rxg8 Kxg8 21. Qg7#)
19.R@h8 B@f8 20.Rxf8 Kxf8 21.Qxd8 N@e8 22.Bxh6 N@g7 23Q@h8 R@g8 24.@e7#)
18 R@f8 Kd7 19. Rxd8 Kxd8
(19...Kc6 20.Nd4 20....- 21 Q@b5)
20.Qf8 Kd7 21.Ne5 Ke6 22.Q@e7#

Cool thanks morning ! Indeed, i completely missed that possibility to block the diagonal with the pawn at the beginning. Thanks for your analysis, just for the end q e7 doesnt make a check mate (maybe i just missed one move) but if we put our bishop at f4 its good. He defends with his pawn and q e7. Ty !

Or rather q f7 lol

Not going to do any heavy analysis but 13. @nf6 looks like the start of a winning attack.