15 and 16 puzzle

Goal:

• Use all 16 pieces. Put all pieces into the frame, so that in any perpendicular, horizontal or diagonal direction the sum is 34.
• Use only pieces from 1 to 15. Mix them and try to arrange them in the frame from 1 to 15 without lifting them up.

Difficulty: 2/6 (15 puzzle) and 4/6 (16 puzzle)

Number of pieces: 16

Dimensions: 12 x 12 x 3 cm

Material: Teak and samena