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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kb3 draw
3 Kb4 draw
4 Kb5 draw
5 Kc2 draw
6 Kc5 draw
7 Kcc3 draw
8 Kd2 draw
9 Kd5 draw
10 Kdc3 draw
11 Ke2 draw
12 Ke3 draw
13 Ke4 draw
14 Rd5 draw
15 Rd6 draw
16 Rd7 draw
17 Rd8 draw
18 Rg4 draw
19 Rh4 draw
20 Re4 loss in 1 half-moves