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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb5 win in 3 half-moves
3 Rf1 draw
4 Kb4 loss in 2 half-moves
5 Kb5 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kcc4 loss in 2 half-moves
8 Kcc6 loss in 2 half-moves
9 Kcd4 loss in 2 half-moves
10 Kcd6 loss in 2 half-moves
11 Kdc4 loss in 2 half-moves
12 Kdc6 loss in 2 half-moves
13 Kdd4 loss in 2 half-moves
14 Kdd6 loss in 2 half-moves
15 Ke4 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves