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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ka3 draw
3 Kb3 draw
4 Rb3 draw
5 Rb4 draw
6 Kb1 loss in 8 half-moves
7 Ra8 loss in 8 half-moves
8 Rb5 loss in 8 half-moves
9 Rb6 loss in 8 half-moves
10 Rc8 loss in 8 half-moves
11 Ka1 loss in 6 half-moves
12 Ka2 loss in 6 half-moves
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 1 half-moves