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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Kb3 draw
3 Kc2 draw
4 Kd2 draw
5 Kd3 draw
6 Kd4 draw
7 Re1 draw
8 Re2 draw
9 Re3 draw
10 Re7 draw
11 Rf4 draw
12 Rg4 draw
13 Rh4 draw
14 Kb2 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Re6 loss in 2 half-moves
22 Re8 loss in 2 half-moves