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 Rc1 win in 1 half-moves
3 Kc2 loss in 2 half-moves
4 Kc3 loss in 2 half-moves
5 Kd2 loss in 2 half-moves
6 Kd4 loss in 2 half-moves
7 Ke2 loss in 2 half-moves
8 Ke3 loss in 2 half-moves
9 Ke4 loss in 2 half-moves
10 Ra4 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rc5 loss in 2 half-moves
14 Rc6 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 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