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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Ka5 draw
3 Ka6 draw
4 Kb5 draw
5 Kc5 draw
6 Kc6 draw
7 Kc7 draw
8 Ra4 draw
9 Rb3 draw
10 Rc4 draw
11 Rf4 draw
12 Ka7 loss in 12 half-moves
13 Kb7 loss in 10 half-moves
14 Rd4 loss in 4 half-moves
15 Rb1 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves