OK i could,
Zone 1 : GC5GG8Z
Zone 2 : GC22YG8 , GC5GCZZ
Zone 3 : GC4GCW5 , GC4GCW3 , GC5B410 , GC4GCW0 , GC4GAK9 , GC3Q5WF , GC19YAM
Please help me to construct the "basic" checker - I will create the next areas.
To those who ask the question, why this checker ?. Angers, this year was ranked the greenest city in France, with most garden green spaces, etc.
Thanks in advance,