Logic Masters Deutschland e.V.

This is my response to Scojo's imposter prompt part 1 of 2, in which I had to set a puzzle in my own style. I've developed a reputation for extremely difficult puzzles, but it's surprisingly difficult to force any of the most monstrous ideas in such a short time, and in my defence, 5* is (just about) not the most frequent difficulty among my puzzles! Hopefully this captures my penchant for small grids, minimalism, long rulesets, and of course full rank. Many thanks to dumediat for testing.



Normal 6x6 sudoku rules apply.

ANTIKNIGHT:
• Two cells a Knight's move apart may not contain the same digit;

RENBAN NURIKABE:
• Shade some cells in the grid;
• All shaded cells form one orthogonally connected area;
• No 2x2 area is fully shaded;
• An area of unshaded cells is called an Island;
• Each Island is a Renban, i.e. its digits form a non-repeating consecutive set.

RANKED SNAKES:
• Each Island can be represented as an orthogonally connected non-branching line, or Snake, with its head in one of the cells containing pink flags (ALL pink flags are given);
• Additionally, divide all shaded cells into orthogonally connected non-branching Snakes, some of whose heads appear at grey clues (NOT all grey flags are given);
• Each Snake can be read as a number starting from the head, and all numbers can be ranked numerically from smallest (1) to largest;
• A flag shows the rank of the snake beginning in that cell (the question mark may represent any number);
• N.B.: The minimum size of a Snake is 1 cell, and all pink and grey Snakes are ranked within the same list.