Modification of CC1 #1.

Modification of CC1 #2.

Modification of CC1 #3.

Modification of CC1 #5.

Modification of CC1 #6.

Modification of CC1 #7.

Modification of CC1 #8.

Modification of CC1 #9.

Modification of CC1 #10.

Modification of CC1 #11.

Modification of CC1 #12.

Modification of CC1 #17.

Modification of CC1 #18.

Modification of CC1 #20.

Based on a level made on paper in 1997.