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 Ka6 draw
3 Ka7 draw
4 Kb7 draw
5 Kc6 draw
6 Kc7 draw
7 Ra4 draw
8 Rb5 draw
9 Rg4 draw
10 Ka5 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves