Click on the third or sixth rank to set the en passant target square.

EGTB: draw

# move score
1 a3 draw
2 Kg8 draw
3 Ra3 loss in 2 half-moves
4 Rb3 loss in 2 half-moves
5 Rd3 loss in 2 half-moves
6 Re1 loss in 2 half-moves
7 Re2 loss in 2 half-moves
8 Re4 loss in 2 half-moves
9 Re6 loss in 2 half-moves
10 Re7 loss in 2 half-moves
11 Re8 loss in 2 half-moves
12 Rf3 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rh3 loss in 2 half-moves
15 Kg6 loss in 1 half-moves
16 Kg7 loss in 1 half-moves
17 Kh6 loss in 1 half-moves
18 Kh8 loss in 1 half-moves
19 Rc3 loss in 1 half-moves
20 Re5 loss in 1 half-moves