Logic Masters Deutschland e.V.

Hello.

Normal sudoku rules apply.

Each box contains a King, represented by the digit that matches its box number. The digits needed to complete an entropic set and a modular set act as rooks.

Entropic sets are low (123), mid (456), and high (789). Modular sets are mod1 (147), mod2 (258), and mod0 (369).

In box 1, the digit 1 is the King. The digits 2, 3, 4, and 7 are rooks, since 2 and 3 complete the entropic set, and 4 and 7 complete the modular set.

There is exactly one King in each row, column, and box position (i.e., a disjoint set).

No King may be in check by a rook within the same box.

Digits separated by a white dot are consecutive. Digits separated by a black dot are in a 2:1 ratio.

Have fun.