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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rc8 win in 1 half-moves
3 Kb5 win in 5 half-moves
4 K6b7 win in 7 half-moves
5 K7b7 win in 7 half-moves
6 Ra8 win in 7 half-moves
7 K6b6 draw
8 K7b6 draw
9 Ka5 loss in 2 half-moves
10 Ka8 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves