Potatoes blocks or rows?

Hi everyone, I'm just in the process of planning out my new allotment and I'm looking for the best way to use space. I've always grown potatoes in rows but I'm thinking to save space should I grow in blocks instead? And was wondering if anyone has grown in blocks? And what was harvest like? Any feedback would be great.
Thanks

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Sorry I mean have 5 plants in a row then again and so forth instead of having 12 plants and then another row more like planting sweetcorn its just I'm trying to think about pathways in the middle of my allotment so if I could have blocks of potatoes on either side instead of having them going straight across? Im probably not making much sense lol

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It shouldn't be any more difficult for access, weeding, earthing up, whatever, whichever method is used, but planting in blocks can be more useful in freeing up useable areas for subsequent growing.

For example, with 4 long rows, one of first earlies, and 3 of maincrop, you would find it difficult to utilise the area taken up by the earlies after lifting as the others would flop over it and you could disturb anything planted there when lifting the later maturing spuds.

Planting in blocks by type would overcome those problems.

 

This is how we did ours on our allotment last year. Short rows of say 4/5 plants x3 rows of earlys, then the next block up, 2nd earlys etc. Like Scrungee says, that way when one of the crops completes you get a whole block to re-use rather than just a thin strip.