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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rf1 win in 1 half-moves
3 Rb6 win in 5 half-moves
4 Rb7 win in 5 half-moves
5 Rb8 win in 5 half-moves
6 K1a2 draw
7 K1b2 draw
8 K3a2 draw
9 K3b2 draw
10 Ka4 draw
11 Kb3 draw
12 Kb4 draw
13 Rc1 draw
14 Rd1 draw
15 Re1 draw
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves