Look at the preview, solve puzzle 1 then send your answer to me at international_dba@yahoo.co.uk.
The subject line should be
New Sudoku Players Forum Book Promotion 1
Do not include your address in the email.
At the end of September 2022, I will choose a winner at random from the (correct) entries, get their address at that point, send them their prize and announce the winner on this forum:
https://www.amazon.com/gp/product/B0B3DHXPHT/ref=dbs_a_def_rwt_hsch_vapi_taft_p1_i0
If the promotion is successful and I get lots of entries, I will repeat the promotion with puzzle 2 and so on.
Please do not post the puzzle or its solution here.
If anybody does this the promotion will definitely not be repeated.