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

EGTB: win in 6 half-moves

# move score
1 Ra4 win in 5 half-moves
2 Rb4 draw
3 Re5 draw
4 Re6 draw
5 Re7 draw
6 Re8 draw
7 Rf4 draw
8 Rg4 draw
9 Rh4 draw
10 Ka3 loss in 2 half-moves
11 Kaa2 loss in 2 half-moves
12 Kab1 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kba2 loss in 2 half-moves
15 Kbb1 loss in 2 half-moves
16 Kc1 loss in 2 half-moves
17 Kc2 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Re3 loss in 2 half-moves