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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kc5 win in 3 half-moves
5 Kd5 win in 3 half-moves
6 Rd6 win in 3 half-moves
7 Re5 win in 5 half-moves
8 Re7 win in 5 half-moves
9 Ka2 draw
10 Ka3 draw
11 Ka4 draw
12 Kb2 draw
13 Kc2 draw
14 Kc3 draw
15 Kc4 draw
16 Kc7 draw
17 Kd6 draw
18 Kd7 draw
19 Re3 draw
20 Re4 draw
21 Re8 draw
22 Kb7 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Re2 loss in 2 half-moves
25 Rf6 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rh6 loss in 2 half-moves