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 Rd1 win in 1 half-moves
3 Kf3 loss in 2 half-moves
4 Kf5 loss in 2 half-moves
5 Kg3 loss in 2 half-moves
6 Kg5 loss in 2 half-moves
7 Kh3 loss in 2 half-moves
8 Kh5 loss in 2 half-moves
9 Ra4 loss in 2 half-moves
10 Rc4 loss in 2 half-moves
11 Rd2 loss in 2 half-moves
12 Rd3 loss in 2 half-moves
13 Rd5 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Kf4 loss in 1 half-moves
19 Kh4 loss in 1 half-moves
20 Rf4 loss in 1 half-moves