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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb8 win in 3 half-moves
3 K6a7 win in 5 half-moves
4 K8a7 win in 5 half-moves
5 Kb6 win in 13 half-moves
6 Ra2 win in 13 half-moves
7 K6b7 draw
8 K8b7 draw
9 Ka5 draw
10 Kb5 draw
11 Kb8 draw
12 Rb3 draw
13 Rb7 draw
14 Rc2 draw
15 Rg2 draw
16 Rh2 draw
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves