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 K5b6 win in 3 half-moves
3 K6b5 win in 3 half-moves
4 K6b6 win in 3 half-moves
5 Kb7 win in 3 half-moves
6 Rb6 win in 3 half-moves
7 Rc7 win in 7 half-moves
8 Ka4 draw
9 Ka7 draw
10 Kb4 draw
11 Rc1 draw
12 Rc5 draw
13 Rc8 draw
14 Rd6 draw
15 Rh6 draw
16 Rc2 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg6 loss in 2 half-moves