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

EGTB: draw

# move score
1 Rb2 draw
2 Re4 draw
3 Rf4 draw
4 Rg4 draw
5 Ka4 loss in 2 half-moves
6 Kb1 loss in 2 half-moves
7 Kb3 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 K1a2 loss in 1 half-moves
19 K1b2 loss in 1 half-moves
20 K3a2 loss in 1 half-moves
21 K3b2 loss in 1 half-moves