- [[[[1 1 0 0] [1 1 0 0] [1 1 0 0] [1 1 0 0]]
- [[1 1 0 0] [1 1 0 0] [1 1 0 0] [1 1 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[2 2 2 0] [0 2 0 0] [2 0 0 0] [2 2 0 0]]
- [[0 0 2 0] [0 2 0 0] [2 2 2 0] [2 0 0 0]]
- [[0 0 0 0] [2 2 0 0] [0 0 0 0] [2 0 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[3 3 3 0] [3 3 0 0] [0 0 3 0] [3 0 0 0]]
- [[3 0 0 0] [0 3 0 0] [3 3 3 0] [3 0 0 0]]
- [[0 0 0 0] [0 3 0 0] [0 0 0 0] [3 3 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[4 4 0 0] [0 4 0 0] [4 4 0 0] [0 4 0 0]]
- [[0 4 4 0] [4 4 0 0] [0 4 4 0] [4 4 0 0]]
- [[0 0 0 0] [4 0 0 0] [0 0 0 0] [4 0 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[0 5 5 0] [5 0 0 0] [0 5 5 0] [5 0 0 0]]
- [[5 5 0 0] [5 5 0 0] [5 5 0 0] [5 5 0 0]]
- [[0 0 0 0] [0 5 0 0] [0 0 0 0] [0 5 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[0 6 0 0] [6 0 0 0] [6 6 6 0] [0 6 0 0]]
- [[6 6 6 0] [6 6 0 0] [0 6 0 0] [6 6 0 0]]
- [[0 0 0 0] [6 0 0 0] [0 0 0 0] [0 6 0 0]]
- [[0 0 0 0] [0 0 0 0] [0 0 0 0] [0 0 0 0]]]
-
- [[[7 7 7 7] [7 0 0 0] [7 7 7 7] [7 0 0 0]]
- [[0 0 0 0] [7 0 0 0] [0 0 0 0] [7 0 0 0]]
- [[0 0 0 0] [7 0 0 0] [0 0 0 0] [7 0 0 0]]
- [[0 0 0 0] [7 0 0 0] [0 0 0 0] [7 0 0 0]]]])
+ [[[[0 0] [1 0] [0 1] [1 1]]]
+
+ [[[0 0] [1 0] [2 0] [2 1]]
+ [[1 -1] [1 0] [1 1] [0 1]]
+ [[0 -1] [0 0] [1 0] [2 0]]
+ [[1 -1] [2 -1] [1 0] [1 1]]]
+
+ [[[0 0] [1 0] [2 0] [0 1]]
+ [[0 -1] [1 -1] [1 0] [1 1]]
+ [[2 -1] [0 0] [1 0] [2 0]]
+ [[1 -1] [1 0] [1 1] [2 1]]]
+
+ [[[0 0] [1 0] [1 1] [2 1]]
+ [[1 0] [0 1] [1 1] [0 2]]]
+
+ [[[1 0] [2 0] [0 1] [1 1]]
+ [[0 0] [0 1] [1 1] [1 2]]]
+
+ [[[1 0] [0 1] [1 1] [2 1]]
+ [[1 0] [1 1] [2 1] [1 2]]
+ [[0 1] [1 1] [2 1] [1 2]]
+ [[1 0] [0 1] [1 1] [1 2]]]
+
+ [[[0 0] [1 0] [2 0] [3 0]]
+ [[1 -1] [1 0] [1 1] [1 2]]]]
+ "Each shape is described by a vector that contains the coordinates of
+each one of its four blocks.")