White Grid: 15, 6, 18, 9|18, 9, 21, 12|156, 33, 159, 36|150, 36, 153, 39|156, 36, 159, 39|153, 39, 156, 42|156, 39, 159, 42|159, 39, 162, 42|150, 42, 153, 45|153, 42, 156, 45|156, 42, 159, 45|159, 42, 162, 45|141, 45, 144, 48|144, 45, 147, 48|147, 45, 150, 48|153, 45, 156, 48|156, 45, 159, 48|141, 48, 144, 51|144, 48, 147, 51|147, 48, 150, 51|150, 48, 153, 51|162, 48, 165, 51|141, 51, 144, 54|144, 51, 147, 54|147, 51, 150, 54|150, 51, 153, 54|162, 51, 165, 54|141, 54, 144, 57|144, 54, 147, 57|147, 54, 150, 57|150, 54, 153, 57|153, 54, 156, 57|135, 57, 138, 60|138, 57, 141, 60|141, 57, 144, 60|144, 57, 147, 60|147, 57, 150, 60|150, 57, 153, 60|153, 57, 156, 60|156, 57, 159, 60|135, 60, 138, 63|138, 60, 141, 63|141, 60, 144, 63|144, 60, 147, 63|147, 60, 150, 63|150, 60, 153, 63|156, 60, 159, 63|159, 60, 162, 63|135, 63, 138, 66|138, 63, 141, 66|141, 63, 144, 66|144, 63, 147, 66|147, 63, 150, 66|150, 63, 153, 66|153, 63, 156, 66|156, 63, 159, 66|159, 63, 162, 66|162, 63, 165, 66|135, 66, 138, 69|138, 66, 141, 69|141, 66, 144, 69|144, 66, 147, 69|147, 66, 150, 69|150, 66, 153, 69|159, 66, 162, 69|162, 66, 165, 69|135, 69, 138, 72|141, 69, 144, 72|144, 69, 147, 72|162, 69, 165, 72|141, 72, 144, 75|132, 126, 135, 129|99, 141, 102, 144|129, 162, 132, 165|138, 162, 141, 165|141, 162, 144, 165|129, 165, 132, 168|135, 165, 138, 168|138, 165, 141, 168|141, 165, 144, 168|156, 165, 159, 168|126, 168, 129, 171|129, 168, 132, 171|135, 168, 138, 171|138, 168, 141, 171|141, 168, 144, 171|144, 168, 147, 171|150, 168, 153, 171|153, 168, 156, 171|156, 168, 159, 171|126, 171, 129, 174|138, 171, 141, 174|144, 171, 147, 174|147, 171, 150, 174|150, 171, 153, 174|153, 171, 156, 174|156, 171, 159, 174|126, 174, 129, 177|147, 174, 150, 177|150, 174, 153, 177|153, 174, 156, 177|126, 177, 129, 180|150, 177, 153, 180|153, 177, 156, 180|150, 180, 153, 183