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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 K6a7 win in 3 half-moves
3 K8a7 win in 3 half-moves
4 Ra1 win in 5 half-moves
5 Ka5 draw
6 Rb2 draw
7 Rb7 draw
8 Rb8 draw
9 Rc1 draw
10 Rg1 draw
11 Rh1 draw
12 K6b7 loss in 2 half-moves
13 K8b7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves