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 Ra4 draw
3 Rc4 draw
4 Kc5 loss in 2 half-moves
5 Kc6 loss in 2 half-moves
6 Kdd4 loss in 2 half-moves
7 Kdd6 loss in 2 half-moves
8 Kde6 loss in 2 half-moves
9 Ked4 loss in 2 half-moves
10 Ked6 loss in 2 half-moves
11 Kee6 loss in 2 half-moves
12 Kf4 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re1 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Kc4 loss in 1 half-moves