Somethin' Stupid

Read the rules or don't. I won't blame you if you skip them. :)

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• Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.

• Renban: The pink line (Ren) must contain a set of consecutive non-repeating digits in any order.

• German Whisper: Adjacent digits on the green line (GW) must have a difference of at least 5.

• Region Sum Line: Box borders divide the blue line (RSL) into segments with the same sum.

• Palindrome: The digits on the grey line (Pal) form a palindrome, i.e. they read the same forward and backward.

• Index Line: The turquoise line (Ind) is an Index Line, i.e. the digit in the Nth cell along the line (starting from the diamond) indicates the position along the line where the digit N appears.

• Arrow: Digits on the arrow sum to the digit in the circle from which the arrow emerges.

• Double Arrow: The digits on the line between two circles must sum to the same total as the digits in the two circles.

• Killer cage: Digits in the cage must sum to 7.

• Odd: A cell with a grey circle must contain an odd digit.