Straddle
- Kropki dots
- XV and number dots
- Whisper lines
- Renban lines
- Inequality
The brief
- The grid is divided into 12 regions. Fill the grid with the digits 1-9 so that each digit appears exactly once in each row, column and region.
- IRREGULAR SQUISHDOKU: Solid grey lines are regular region borders. Dashed lines are also region borders, but digits can sit on top of these. A digit straddling a dashed line is simultaneously part of both regions that the dashed line separates.
- RENBAN: Digits on a pink line form a non-repeating consecutive set, but these can be arranged in any order.
- GERMAN WHISPER: Adjacent digits on a green line must have a difference of at least 5.
- KROPKI: Two digits joined by a white dot are consecutive. (Not all possible white dots are shown.)
- X CLUES: Two digits joined by an X sum to 10. (Not all possible Xs are shown.)
- INEQUALITY ARROWS: An inequality arrow points towards the smaller of the two digits it sits between.