your first analisys seems interesting but i think that those repeated bits in some specific puzzles are just a coincide.
Lastt Found Address : 13zb1hQbQVEsGkStRa5QNndvakyhr9ji6M 36DB505C509D330C1
Puzzl Sarch Address : 13zb1hQbWVsc2S7ZTZnP2G4undNNpdh5so.._________________
Prfix Match Address : ^^^^^^^^ ^
Charr Match Totalss : 9
Total Found Address : 458
Total scned rangess : 58410
Charr Match Totalss : 9

??
Only the first 7 match, with out counting the first 1, i mean it is impossible that the first character is not 1 for legacy address P2PKH
Lastt Found Address : 13zb1hQbBpwfx2dfsz96hZc3eyBAskknZD 3967C187FFBA0F1D1
Puzzl Sarch Address : 13zb1hQbWVsc2S7ZTZnP2G4undNNpdh5so.._________________
Prfix Match Address : ^^^^^^^^
Charr Match Totalss : 8
Total Found Address : 459
Total scned rangess : 58411
Again only 7 match
Lastt Found Address : 13zb1hQbBpwfx2dfsz96hZc3eyBAskknZD 3967C187FFBA0F1D1
Puzzl Sarch Address : 13zb1hQbWVsc2S7ZTZnP2G4undNNpdh5so.._________________
Prfix Match Address : ^^^^^^^^
Charr Match Totalss : 8
Total Found Address : 459
Total scned rangess : 58412
Only 7, the thing is that all the characters need to match
1FeexV6bAHo9rxCoRCbMbdGsVA13ca3Cc6 2B91CA5E6DE963B9F
1FeexV6bAHb8ybZjqQMjJrcCrHGW9sb6uF[/b][/pre]
Extra characters doesn't metter, it need to match all 160 bits..
Should I have to create a pool with such stupidity?
No