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

EGTB: win in 4 half-moves

# move score
1 Rd4 win in 3 half-moves
2 Ka4 draw
3 Ka6 draw
4 Kab4 draw
5 Kab5 draw
6 Kb3 draw
7 Kb6 draw
8 Kc3 draw
9 Kc5 draw
10 Kcb4 draw
11 Kcb5 draw
12 Kd3 draw
13 Kd4 draw
14 Re1 draw
15 Re2 draw
16 Re3 draw
17 Re8 draw
18 Kd5 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rh4 loss in 2 half-moves