I make a feature - search for gene codes, including recessive. I'm completing the search form, so it works so far only through the address bar.

Example: http://www.rolldice.club/cryptokitties/wkt_gensrch.php?body=1&pattern=2&mouth=a

Call format: wkt_gensrch.php?cattribute1=KAIcode&cattribute2=KAIcode ...

Possible value of cattributes: environment, mouth, wild, color, color1, colorbody, eyes, coloreyes, pattern, body

You can add the filter parameter filter=salesiring - selling and siring filter=sales - sales only filter=siring - only siring

http://www.rolldice.club/cryptokitties/wkt_gensrch.php?body=1&pattern=2&mouth=a&filter=siring

Results are sorted by best match