Thread - Riad Khanmagomedov's April Contest

Riad Khanmagomedov's April Contest — 19th to 28th April 202630 posts • Page 2 of 2 • 1 2


	@ 2026-04-20 7:08 PM (#39471 - in reply to #39344) (#39471) Top
anurag Posts: 145 Country : India	anurag posted @ 2026-04-20 7:08 PM %22Two+L+or+I+pentominoes+cannot+fit+entirely+in+2+x+5+and+5+x+2+rectangles.%22+This+is+automatically+implied+by+the+immediately+preceding+statement.+So+it+should+be+removed+to+avoid+confusion
	@ 2026-04-20 8:26 PM (#39472 - in reply to #39451) (#39472) Top
Barbitos Posts: 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. 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) Top
Barbitos Posts: 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 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
	@ 2026-04-20 9:20 PM (#39474 - in reply to #39344) (#39474) Top
anurag Posts: 145 Country : India	anurag posted @ 2026-04-20 9:20 PM Got+it%2c+Thanks!%0a

Riad Khanmagomedov's April Contest — 19th to 28th April 202630 posts • Page 2 of 2 • 1 2

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