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. ## [shape-grid] by: ### page.author W=8&L=r5s7t5r2z3s12z6t6r5t2r5z7z6t6&SSE=2RUUUUUUU10RR22UUUUUWW3RRUU23UUUWWWUUUULL3UUULLL7UUUUUUL24NNRR3LLLLEE&N=14&D=2017&G=shape-grid ((A=ErichFriedman)) ### @Stingby12 W=3&L=t2t2z6t3&SSE=4SSWW17DNNRR&A=Stingby12&D=14%2F12%2F2021&N=1&T=Rectangleless&G=shape-grid ## Acknowledgements and Changes 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 **2024-10-05** Updated genre metadata with new information found by @PinkHoodie, pushing back origins to 2010