Logic Masters Deutschland e.V.

Lore (you may skip below the image if you are looking for the rules):

This is the second entry of the chess-sudoku puzzle series. This time around, we'll be tackling a much more sophisticated opening compared to the lame symmetrical London from the previous puzzle. Once again, the moves to reach this opening are indicated on the board with arrows, thermos and between lines with e4 e5, Nf3 Nc6, Bb5 Nf6 and d3. The puzzle is meant to be slightly easier than the one before, I hope you enjoy.

Rules

+Normal Sudoku rules apply: Place the digits 1 to 9 once in every column, row and box.
+Normal Killer rules apply: Digits inside of a cage must sum up to the indicated number at the top left corner of the cage. Digits in a cage can't repeat.
+Normal Arrow rules apply: Digits along an arrow must sum to the circled digit on the arrow. Digits along the arrow may repeat if allowed by the other rules.
+Normal Thermometer rules apply: Digits along a thermometer must keep increasing starting from the bulb.
+Between Lines: Digits on a turquoise between line must be between the circled digits on both ends.
+Chess Board: The bottom-right 8x8 part of this puzzle represents a chess board. Digits in column 1 and row 1 are outside of the chess board, they are also shaded green for further clarification.

+Anti-German-Whispers: All adjacent digits on an Anti-German-Whisper row or column must have a difference AT MOST 4. There are 4 rows and 4 columns ON the chess board that have this functionality. (this rule does not effect the digits outside of the chess board, aka column 1 and row 1)

+Liar X-Sums: Digits outside of the grid indicate the sum of the first X digits seen in that direction where X is the first digit seen. However, the clues outside of rows and columns that do not follow an Anti-German Whisper are "liar" clues and they must be wrong.
Play here