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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb4 draw
3 Re1 draw
4 Rf1 draw
5 Rg1 draw
6 Rh1 draw
7 K6a6 loss in 2 half-moves
8 K6a7 loss in 2 half-moves
9 K6c6 loss in 2 half-moves
10 K6c7 loss in 2 half-moves
11 K7a6 loss in 2 half-moves
12 K7a7 loss in 2 half-moves
13 K7c6 loss in 2 half-moves
14 K7c7 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Ka8 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves