Shape grid was designed by page.author and included in the book [Puzzle Box, volume 2 (Dover Publications)|https://store.doverpublications.com/0486813487.html]. Below is an interactive port.

## page.title by:
### page.author
W=8&L=r5s7t5r2z3s12z6t6r5t2r5z7z6t6&SSE=2RUUUUUUU10RR22UUUUUWW3RRUU23UUUWWWUUUULL3UUULLL7UUUUUUL24NNRR3LLLLEE&N=14&D=2017&G=shape-grid
((authored))

### Stingby12
W=3&L=t2t2z6t3&SSE=4SSWW17DNNRR&A=Stingby12&D=14%2F12%2F2021&N=1&T=Rectangleless&G=shape-grid

## Acknowledgements
Thanks @@ Deusovi, Hempuli, Ubuntor @@ for feedback on the rules and to @Stingby12 for detecting the extra //narrow corner case//.

**2023-12-18** Fixed a regression found by @JustKirb