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

EGTB: draw

# move score
1 Rb4 draw
2 Rb5 draw
3 Rd8 draw
4 Re8 draw
5 Rc8 loss in 4 half-moves
6 Rf8 loss in 4 half-moves
7 Kg7 loss in 2 half-moves
8 Kg8 loss in 2 half-moves
9 Kh7 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rb3 loss in 1 half-moves