Server Seed
Client Seed
Nonce

Basic Spin

Round
HMAC_Sha256 ( Client_Seed : Nonce : Round , Server_Seed ) Hash

Cat Respin

If cat symbol appears in the above result, cat respin will be triggered

Lucky Spin

If three sword symbols appear in the above result, lucky spin will be triggered

Bonus Respin

It will trigger if you get the bonus respin