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 Kd4 win in 3 half-moves
4 Rb4 win in 3 half-moves
5 Kb2 win in 7 half-moves
6 Kc2 win in 7 half-moves
7 Kd2 win in 7 half-moves
8 Rc2 win in 7 half-moves
9 Kb1 draw
10 Kb6 draw
11 Kc6 draw
12 Kd1 draw
13 Kd5 draw
14 Kd6 draw
15 Ra4 draw
16 Rc3 draw
17 Rd4 draw
18 Re4 draw
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves