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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb1 win in 5 half-moves
3 Rb8 win in 5 half-moves
4 Kc5 win in 7 half-moves
5 Ra8 win in 7 half-moves
6 Ka2 draw
7 Kc4 draw
8 Kc6 draw
9 Kd4 draw
10 Kd6 draw
11 Ke6 draw
12 Rc8 draw
13 Rd6 draw
14 Rd7 draw
15 Re8 draw
16 Rf8 draw
17 Ke4 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves