Question: 3 How many such positions for 10 queens with two pawns on the fields (4, 4) and (5, 5) of an (8 8)-board are
3 How many such positions for 10 queens with two pawns on the fields
(4, 4) and (5, 5) of an (8 × 8)-board are possible? (The n + k-problem). n+1 queens and one pawn should be placed on an n × n chess board such that no queen attacks any other queen.
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