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

EGTB: win in 4 half-moves

# move score
1 K5b5 win in 3 half-moves
2 K6b6 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Rb8 win in 3 half-moves
5 K5b6 win in 5 half-moves
6 K6b5 win in 5 half-moves
7 Ka7 win in 5 half-moves
8 Kb4 win in 5 half-moves
9 Rc6 win in 5 half-moves
10 Rc7 win in 5 half-moves
11 Ka4 draw
12 Ra8 draw
13 Rc1 draw
14 Rc5 draw
15 Rd8 draw
16 Re8 draw
17 Rf8 draw
18 Rc2 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves