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

EGTB: win in 2 half-moves

# move score
1 Kb3 win in 1 half-moves
2 Kd3 win in 1 half-moves
3 Rc3 draw
4 Rb6 loss in 12 half-moves
5 Kb2 loss in 4 half-moves
6 Rc7 loss in 4 half-moves
7 Rc8 loss in 4 half-moves
8 Rd6 loss in 4 half-moves
9 Kb1 loss in 2 half-moves
10 Kc1 loss in 2 half-moves
11 Kd1 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Rf6 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Kc3 loss in 1 half-moves