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

EGTB: win in 4 half-moves

# move score
1 K5b6 win in 3 half-moves
2 K6b6 win in 3 half-moves
3 Rd6 win in 5 half-moves
4 K6d6 draw
5 Kb7 draw
6 Kc7 draw
7 Kd7 draw
8 Re5 draw
9 Rf5 draw
10 Rg5 draw
11 Rh5 draw
12 K5b5 loss in 2 half-moves
13 K5d6 loss in 2 half-moves
14 K6b5 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Rd8 loss in 2 half-moves