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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Rb3 win in 3 half-moves
4 Rb6 draw
5 Rd4 draw
6 Kg1 loss in 2 half-moves
7 Kg2 loss in 2 half-moves
8 Kg3 loss in 2 half-moves
9 Kh1 loss in 2 half-moves
10 Kh3 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rb5 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 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rg4 loss in 1 half-moves