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

EGTB: win in 2 half-moves

# move score
1 Ka8 win in 1 half-moves
2 Ka5 win in 3 half-moves
3 Ra4 win in 3 half-moves
4 Rb5 win in 3 half-moves
5 Rb6 win in 3 half-moves
6 Rb7 win in 3 half-moves
7 K6b6 draw
8 K7b6 draw
9 Kb5 draw
10 Kb8 draw
11 Rb8 draw
12 Rc4 draw
13 Rd4 draw
14 Rh4 draw
15 K6b7 loss in 2 half-moves
16 K7b7 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves