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

EGTB: win in 2 half-moves

# move score
1 Rc4 win in 1 half-moves
2 Rh4 win in 1 half-moves
3 Rd4 draw
4 K5a6 loss in 2 half-moves
5 K5b6 loss in 2 half-moves
6 K7a6 loss in 2 half-moves
7 K7b6 loss in 2 half-moves
8 Ka8 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Re4 loss in 2 half-moves
16 Rf4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Kb4 loss in 1 half-moves
19 Rb4 loss in 1 half-moves