@ 2026-04-20 8:26 PM (#39472 - in reply to #39451) (#39472) TopPosts: 11
Country : France
Barbitos posted @ 2026-04-20 8:26 PM
Riad Khanmagomedov - 2026-04-19 6:09 PM
You cannot swap FIFIR and RUBIA because the letter R is upside down.
You cannot swap FIFIR and RUBIA because the letter R is upside down.
I don't think that happens in the alternative solution.
Describing it accurately is hard, so here's a link to what it looks like: https://imgur.com/gcIZnre
@ 2026-04-20 8:32 PM (#39473 - in reply to #39471) (#39473) TopPosts: 11
Country : France
Barbitos posted @ 2026-04-20 8:32 PM
anurag - 2026-04-20 2:08 AM
"Two L or I pentominoes cannot fit entirely in 2 x 5 and 5 x 2 rectangles." This is automatically implied by the immediately preceding statement. So it should be removed to avoid confusion
"Two L or I pentominoes cannot fit entirely in 2 x 5 and 5 x 2 rectangles." This is automatically implied by the immediately preceding statement. So it should be removed to avoid confusion
It is not. In the example, this rule prevents swapping the leftmost L with the bottommost I, because then the first two columns would form a 5x2 rectangle that is filled with two I pentominoes and nothing else