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

EGTB: win in 2 half-moves

# move score
1 Re3 win in 1 half-moves
2 Kc3 win in 3 half-moves
3 Rb5 draw
4 Kaa1 loss in 2 half-moves
5 Kaa3 loss in 2 half-moves
6 Kab1 loss in 2 half-moves
7 Kba1 loss in 2 half-moves
8 Kba3 loss in 2 half-moves
9 Kbb1 loss in 2 half-moves
10 Kc1 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rh3 loss in 2 half-moves