diff --git a/6/a.py b/6/a.py
new file mode 100755
index 0000000..ae2a418
--- /dev/null
+++ b/6/a.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+
+
+def getdist(pa, pb):
+    return abs(pa[0] - pb[0]) + abs(pa[1] - pb[1])
+
+
+def fullrange(s, e):
+    return range(s, e + 1)
+
+
+def get_closest(point, allpoints):
+    """
+    Returns the index of the point from allpoints closest to the passed point.
+    Returns None if two points are equidistant.
+    """
+    best_index = None
+    best_distance = 999999999
+    is_dupe = False
+
+    for index, p in enumerate(allpoints):
+        # if p == point:
+        #     continue
+        dist = getdist(point, p)
+        if dist <= best_distance:
+            if dist == best_distance:
+                is_dupe = True
+            else:
+                is_dupe = False
+            best_distance = dist
+            best_index = index
+
+    if is_dupe:
+        return None
+
+    return best_index
+
+
+def main():
+    coords = []
+
+    with open("input.txt") as f:
+        for line in f.readlines():
+            a, b = line.split(", ")
+            coords.append((int(a), int(b)))
+
+    # bounding box is be +x+y, -x,-y corners
+    xcoords = [i[0] for i in coords]
+    ycoords = [i[1] for i in coords]
+    bufsize = 1
+    bbox = (
+        (
+            max(xcoords) + bufsize,
+            max(ycoords) + bufsize
+        ),
+        (
+            min(xcoords) - bufsize,
+            min(ycoords) - bufsize
+        )
+    )
+
+    # point ids (their index in the coords list) mapped to their size count
+    fields = {x: 0 for x in range(0, len(coords))}
+    infinte_fields = set()
+    for y in fullrange(bbox[1][1], bbox[0][1]):
+        for x in fullrange(bbox[1][0], bbox[0][0]):
+            closest = get_closest((x, y), coords)
+            if closest is not None:
+                fields[closest] += 1
+
+                # if touching an edge of the bounding box
+                if x == bbox[1][0] or x == bbox[0][0] or y == bbox[1][1] or y == bbox[0][1]:
+                    infinte_fields.update([closest])
+
+    biggest_fieldid = None
+    biggest_field_size = 0
+
+    for pointid, size in fields.items():
+        if pointid not in infinte_fields:
+            if size > biggest_field_size:
+                biggest_field_size = size
+                biggest_fieldid = pointid
+
+    print("biggest field id:", biggest_fieldid)
+    print("biggest field size:", biggest_field_size)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/6/b.py b/6/b.py
new file mode 100755
index 0000000..a19ce3c
--- /dev/null
+++ b/6/b.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+
+
+from a import getdist, fullrange
+
+
+def point_vaild(point, allpoints, units):
+    """
+    Returns True if the point is no more than units away from all points in allpoints (as in the sum of all dists)
+    """
+
+    for p in allpoints:
+        units -= getdist(point, p)
+        if units <= 0:
+            return False
+    return True
+
+
+def main():
+    coords = []
+    maxdist = 10000
+
+    with open("input.txt") as f:
+        for line in f.readlines():
+            a, b = line.split(", ")
+            coords.append((int(a), int(b)))
+
+    # bounding box is be +x+y, -x,-y corners
+    # TBD this probably breaks with abusive input
+    xcoords = [i[0] for i in coords]
+    ycoords = [i[1] for i in coords]
+    bufsize = 0
+    bbox = (
+        (
+            max(xcoords) + bufsize,
+            max(ycoords) + bufsize
+        ),
+        (
+            min(xcoords) - bufsize,
+            min(ycoords) - bufsize
+        )
+    )
+
+    print("bbox:", bbox)
+
+    valids = 0
+    for y in fullrange(bbox[1][1], bbox[0][1]):
+        for x in fullrange(bbox[1][0], bbox[0][0]):
+            if point_vaild((x, y), coords, maxdist):
+                valids += 1
+
+    print(valids)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/6/input.txt b/6/input.txt
new file mode 100644
index 0000000..767ee7d
--- /dev/null
+++ b/6/input.txt
@@ -0,0 +1,50 @@
+305, 349
+315, 193
+154, 62
+246, 310
+145, 283
+260, 324
+342, 79
+321, 353
+40, 242
+351, 353
+337, 297
+174, 194
+251, 160
+314, 195
+114, 81
+204, 246
+203, 169
+203, 296
+60, 276
+201, 47
+206, 96
+243, 46
+295, 304
+319, 80
+213, 330
+337, 255
+40, 262
+302, 150
+147, 349
+317, 240
+96, 315
+133, 305
+320, 348
+210, 300
+266, 216
+223, 319
+207, 152
+127, 214
+312, 245
+49, 329
+211, 84
+129, 276
+247, 143
+208, 235
+271, 126
+124, 211
+144, 184
+54, 88
+354, 300
+148, 85