Lion(LI): Moves along Queen lines over another unit of either color to any square beyond that unit. A capture may be made on arrival, but the hurdle is not affected.
Rook-Lion(RL): Moves like Lion, but on Rook lines only: Moves along Rook lines over another unit of either color to any square beyond that unit. A capture may be made on arrival, but the hurdle is not affected.
Bishop-Lion(BL): Moves like Lion, but on Bishop lines only: Moves along Bishop lines over another unit of either color to any square beyond that unit. A capture may be made on arrival, but the hurdle is not affected.
Neutral piece: Belongs to whichever side chooses to use it. It can therefore be moved or captured by White or Black, and in Circe it is reborn according to capture. A King may not be moved onto a square controlled by a neutral piece, because of self-check.
No.1464Ofer Comay,
S.K.Balasubramanian
& Vlaicu Crișan Israel / India / Romania original – 19.12.2019
3 masters of the helpselfmate come together to provide a sumptuous geometrical feast!
See line & square diagram:
https://imgur.com/a/a0Wam8P
Indeed, there are many thematical lines. You can add h2-d6 and g2-g7 to your diagram…
Right! Maybe I unconsciously left it because the line g2-g7 was not used in both solutions.