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

EGTB: win in 2 half-moves

# move score
1 Ka6 win in 1 half-moves
2 Ka8 draw
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Ra4 draw
7 Rb3 draw
8 Rb5 draw
9 Rb6 draw
10 Rb7 draw
11 Rb8 draw
12 Rc4 loss in 4 half-moves
13 Re4 loss in 4 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rf4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rd4 loss in 1 half-moves