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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb7 win in 1 half-moves
3 Rd4 win in 1 half-moves
4 Rb2 draw
5 Rb3 draw
6 Ka2 loss in 2 half-moves
7 Ka4 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rb6 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Re4 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Kb2 loss in 1 half-moves
18 Kb3 loss in 1 half-moves