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 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Re4 draw
6 Rf4 draw
7 Rg4 draw
8 Rh4 draw
9 Ke2 loss in 2 half-moves
10 Ke3 loss in 2 half-moves
11 Ke4 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kg2 loss in 2 half-moves
15 Kg3 loss in 2 half-moves
16 Kg4 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rd4 loss in 2 half-moves