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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Ra8 win in 13 half-moves
4 K4b4 draw
5 K4b5 draw
6 K5b4 draw
7 K5b5 draw
8 Kb3 draw
9 Kb6 draw
10 Kc3 draw
11 Kc6 draw
12 Rc7 draw
13 Re8 draw
14 K4d4 loss in 2 half-moves
15 K4d5 loss in 2 half-moves
16 K5d4 loss in 2 half-moves
17 K5d5 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves
23 Rh8 loss in 2 half-moves