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

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Kaa5 draw
3 Kaa7 draw
4 Kab5 draw
5 Kab7 draw
6 Kba5 draw
7 Kba7 draw
8 Kbb5 draw
9 Kbb7 draw
10 Kc5 draw
11 Kc6 draw
12 Kc7 draw
13 Ra8 draw
14 Rb8 draw
15 Rd8 draw
16 Re3 draw
17 Re7 draw
18 Re1 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Re5 loss in 2 half-moves
22 Re6 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves