4x4 kid.txt
Order 2: digits 4; houses 12, cells 16.
Grid.grid1: initial copying
pending={b3, b4, d1, d4}
deduce.grid1: naked-singles
- a4 is 4 by naked-single.
pending={a4}
- a3 is 3 by naked-single.
pending={a3}
- b1 is 3 by naked-single.
pending={b1}
- b2 is 4 by naked-single.
pending={b2}
- c4 is 2 by naked-single.
pending={c4}
- c1 is 1 by naked-single.
pending={c1}
- a1 is 2 by naked-single.
pending={a1}
- a2 is 1 by naked-single.
pending={a2}
- c2 is 3 by naked-single.
pending={c2}
- c3 is 4 by naked-single.
pending={c3}
- d2 is 2 by naked-single.
pending={d2}
- d3 is 1 by naked-single.
pending={d3}
deduce.grid1. Solved.
grid1
|
| 1
| 2
| 3
| 4
|
| a
| 2
| 1
| 3
| 4
|
| b
| 3
| 4
| 2
| 1
|
| c
| 1
| 3
| 4
| 2
|
| d
| 4
| 2
| 1
| 3
|
grid1. Copying solution to raw grid.