And for 1 rsz private key is
0000000000000000000000000000000000000000000000000000000000000003
it is puzzle 2

I can easily send to you rsz with unknown private key for you. How can we find that private key with this script?
0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd036413e
and
0x0000000000000000000000000000000000000000000000000000000000000003
use same X : f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9
https://blog.trailofbits.com/2020/06/11/ecdsa-handle-with-care/It is still impossible to crack the private key from r s z unless the association of k nonce in multiple sets of r, s, z is known