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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rc1 win in 3 half-moves
3 Re4 win in 5 half-moves
4 Re5 win in 5 half-moves
5 Ra1 win in 9 half-moves
6 Ka7 draw
7 Ka8 draw
8 Kb4 draw
9 Kb5 draw
10 Kb6 draw
11 Kb7 draw
12 Kc4 draw
13 Kc6 draw
14 Kc7 draw
15 Kc8 draw
16 Kd4 draw
17 Kd5 draw
18 Kd6 draw
19 Rd1 draw
20 Re2 draw
21 Re3 draw
22 Re6 draw
23 Rf1 draw
24 Re7 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves