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 Kb2 draw
3 Kb3 draw
4 Kb4 draw
5 Kd3 draw
6 Kd4 draw
7 Rb4 draw
8 Rc4 draw
9 Rd4 draw
10 Re4 draw
11 Rg2 draw
12 Rh4 draw
13 Kc2 loss in 4 half-moves
14 Kc4 loss in 4 half-moves
15 Kd2 loss in 4 half-moves
16 Rg1 loss in 4 half-moves
17 Rg3 loss in 4 half-moves
18 Rg5 loss in 4 half-moves
19 Rf4 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg7 loss in 1 half-moves
22 Rg8 loss in 1 half-moves