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 Kc7 win in 3 half-moves
3 Ra3 win in 3 half-moves
4 Rb3 win in 3 half-moves
5 Ka4 draw
6 Ka6 draw
7 Ka7 draw
8 Ka8 draw
9 Kb5 draw
10 Kb6 draw
11 Kb7 draw
12 Kc8 draw
13 Rc3 draw
14 Rd1 draw
15 Rd2 draw
16 Rd4 draw
17 Rd8 draw
18 Re3 draw
19 Rd5 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Rd7 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh3 loss in 2 half-moves