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 Rc2 draw
4 Rc6 draw
5 Rc7 draw
6 Rc8 draw
7 Rf4 draw
8 Rg4 draw
9 Rh4 draw
10 Kf4 loss in 2 half-moves
11 Kf5 loss in 2 half-moves
12 Kf6 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Kh4 loss in 2 half-moves
16 Kh5 loss in 2 half-moves
17 Kh6 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves