Ultracompact set CastleChess

The set includes chess pieces and a playing field. For maximum compactness, all parts are placed one inside another. This is similar to the principle of nesting dolls or stacked chairs.
16 figures are folded into one, thus, when assembled, the whole set is two small tubes.
I did similar projects before, but here for the first time I realized the combination of the edges of the form and the counterform of paired figures vertically, as in the works of Maurits Cornelis Escher.

The medieval image is reinforced by pawns in the form of small turrets and helmets of knights.

The base without corners allows you to print without problems, and the void inside reduces printing time.

The size of the playing field is 20x20 cm (two parts 20x10, they can be placed inside the assembled parts).

In the square version, pawns and towers require the printing of two files, in the round one universal piece is used, printed twice. While only the square version is laid out, the round version of the figures can be downloaded here https://www.prusaprinters.org/prints/28518-ultracompact-set-castlechess

Previous chess projects:
Based on the Lanier Graham chess https://www.thingiverse.com/thing:3369638
Based on the Josef Hartwig https://www.thingiverse.com/thing:3484722
Cylinder version with traditional chess symbols https://www.thingiverse.com/thing:3493954
frame chess https://www.thingiverse.com/thing:3507913