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

EGTB: draw

# move score
1 Kb2 draw
2 Kb3 draw
3 Kb4 draw
4 Kc2 draw
5 Kd2 draw
6 Kd3 draw
7 Kd4 draw
8 Rb7 draw
9 Rd7 draw
10 Kc4 loss in 4 half-moves
11 Rc6 loss in 4 half-moves
12 Rc8 loss in 4 half-moves
13 Re7 loss in 4 half-moves
14 Rc4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rh7 loss in 2 half-moves
19 Ra7 loss in 1 half-moves