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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Re1 win in 7 half-moves
4 K2b2 draw
5 K2b3 draw
6 K3b2 draw
7 K3b3 draw
8 Ka1 draw
9 Ka4 draw
10 Kb1 draw
11 Kb4 draw
12 Rc4 draw
13 Rd4 draw
14 Re2 draw
15 Re3 draw
16 Re8 draw
17 Rf4 draw
18 Re5 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves