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

EGTB: win in 6 half-moves

# move score
1 Rb1 win in 5 half-moves
2 Rg8 win in 5 half-moves
3 Rh8 win in 5 half-moves
4 K1h2 draw
5 K3h2 draw
6 Kh4 draw
7 Ra8 draw
8 Rb5 draw
9 Rb6 draw
10 Rb7 draw
11 Rf8 draw
12 K1g2 loss in 2 half-moves
13 K3g2 loss in 2 half-moves
14 Kg1 loss in 2 half-moves
15 Kg3 loss in 2 half-moves
16 Kg4 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves