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

EGTB: win in 2 half-moves

# move score
1 Kb3 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Ra8 win in 3 half-moves
4 Rc3 win in 5 half-moves
5 K1b1 draw
6 K1b2 draw
7 K2b1 draw
8 K2b2 draw
9 Ka3 draw
10 Rc4 draw
11 Rc5 draw
12 Rc6 draw
13 Rc7 draw
14 Rd8 draw
15 Re8 draw
16 Rc1 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves