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

EGTB: win in 4 half-moves

# move score
1 Ra2 win in 3 half-moves
2 Rc2 win in 3 half-moves
3 K1a2 draw
4 K1b2 draw
5 K1c2 draw
6 K3a2 draw
7 K3b2 draw
8 K3c2 draw
9 Ka1 draw
10 Ka3 draw
11 Ka4 draw
12 Kb4 draw
13 Kc1 draw
14 Kc3 draw
15 Kc4 draw
16 Rb2 draw
17 Rd2 draw
18 Re1 draw
19 Re7 draw
20 Rf2 draw
21 Re3 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Re6 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rh2 loss in 2 half-moves