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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka5 win in 5 half-moves
3 Re5 win in 11 half-moves
4 Ka3 draw
5 Ra1 draw
6 Ra3 draw
7 Re1 draw
8 Re3 draw
9 Ree2 draw
10 Rf2 draw
11 Rf4 draw
12 Rae2 loss in 4 half-moves
13 Kb3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re6 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rh2 loss in 2 half-moves
27 Rh4 loss in 2 half-moves