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

EGTB: draw

# move score
1 Rf8 draw
2 Rh1 draw
3 Rh2 draw
4 Rh3 draw
5 Rh7 draw
6 K1b1 loss in 2 half-moves
7 K1b2 loss in 2 half-moves
8 K2b1 loss in 2 half-moves
9 K2b2 loss in 2 half-moves
10 Ka3 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh6 loss in 2 half-moves