c3po
Left-right symmetrical. In order to solve columns 1, 2, 24, and 25, it's necessary to use temporaries or second-order logic ("If I put this here, it would make it impossible to complete the next column")
Left-right symmetrical. In order to solve columns 1, 2, 24, and 25, it's necessary to use temporaries or second-order logic ("If I put this here, it would make it impossible to complete the next column")
nice picture.