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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Re2 win in 5 half-moves
3 K1g1 draw
4 K1g2 draw
5 K2g1 draw
6 K2g2 draw
7 Kh3 draw
8 Ra3 draw
9 Rb3 draw
10 Rc3 draw
11 Rd3 draw
12 Re4 draw
13 Rf3 draw
14 Rg3 draw
15 Re5 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Kg3 loss in 1 half-moves