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 Kc7 win in 5 half-moves
3 K5b5 draw
4 K5b6 draw
5 K6b5 draw
6 K6b6 draw
7 Kb4 draw
8 Kb7 draw
9 Kc4 draw
10 Ra8 draw
11 Rh8 draw
12 K5d5 loss in 2 half-moves
13 K5d6 loss in 2 half-moves
14 K6d5 loss in 2 half-moves
15 K6d6 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves