nostr:npub1c6kn9jlqj3vyhjn2yeqyu2qul8vjx8ejjyamvmsnyyfjqetjwjyshxfqp8

I haven't done any that size (though I've created charts in that range). The biggest for me is about 200 by 300, on 18 count. (I've done that size on 22 over one intersection. Can't do blended colors, though.)