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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra8 draw
3 Rb5 draw
4 Rb6 draw
5 Kb1 loss in 2 half-moves
6 Kb2 loss in 2 half-moves
7 Kc3 loss in 2 half-moves
8 Kcc2 loss in 2 half-moves
9 Kcd1 loss in 2 half-moves
10 Kd3 loss in 2 half-moves
11 Kdc2 loss in 2 half-moves
12 Kdd1 loss in 2 half-moves
13 Ke1 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb7 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
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves