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

EGTB: win in 2 half-moves

# move score
1 Ka1 win in 1 half-moves
2 Kc1 win in 1 half-moves
3 Ka2 draw
4 Kc2 draw
5 Ra8 draw
6 Rb3 draw
7 Rb4 draw
8 Rc8 draw
9 Kb3 loss in 4 half-moves
10 Ka3 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Kb1 loss in 1 half-moves
20 Re8 loss in 1 half-moves