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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ka6 draw
3 Ka7 draw
4 Ka8 draw
5 Kb6 draw
6 Kb8 draw
7 Kc6 draw
8 Kc7 draw
9 Kc8 draw
10 Ra4 draw
11 Rc4 draw
12 Rd4 draw
13 Re1 draw
14 Re2 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Rg4 draw
20 Rh4 draw
21 Re3 loss in 2 half-moves
22 Rf4 loss in 2 half-moves