Can you place 42 bishops with 6 bishops for each of the 7 colors on a 10x10 grid, such that no two bishops of different colors attack each other?
Here are some similar questions:
Peaceable Bishops on an 8x8 grid
Peaceable Bishops on an 10x10 grid
Answer
This was probably not the most exciting question. Anyway there are many solutions. Here are some examples:
723...5617
2.23456..1
32.......6
.3......65
.4......5.
.5......4.
.6.......4
.1.....7.3
171654...2
71....4327
512...3.65
1.124.7.56
21....6...
.2.....673
.4........
.3......4.
37......24
7.........
6..7342.51
5673..4.15
12.3..4671
21.5346..7
.........6
35......64
.3......4.
..........
467....253
...7..2..5
71.6..5..2
17.4..3521
Interestingly one cannot add a single other bishop of any color.
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