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 Kc1 draw
4 Kc3 draw
5 Kd1 draw
6 Kd2 draw
7 Kd3 draw
8 Rc8 draw
9 Rg7 draw
10 Ra7 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves
18 Kb1 loss in 1 half-moves
19 Rd7 loss in 1 half-moves
20 Re7 loss in 1 half-moves