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

EGTB: draw

# move score
1 Kb1 draw
2 Kd1 draw
3 Kd2 draw
4 Rc8 draw
5 Rd8 draw
6 Re8 draw
7 Rf1 draw
8 Rf2 draw
9 Rf6 draw
10 Rf7 draw
11 Rg8 draw
12 Rh8 draw
13 Kb2 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 2 half-moves