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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd2 draw
3 Kd3 draw
4 Rb1 draw
5 Rb4 draw
6 Rb2 loss in 20 half-moves
7 Ra3 loss in 18 half-moves
8 Kb2 loss in 16 half-moves
9 Kc3 loss in 14 half-moves
10 Kb1 loss in 12 half-moves
11 Kc1 loss in 12 half-moves
12 Kd1 loss in 10 half-moves
13 Rf3 loss in 10 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rg3 loss in 1 half-moves
21 Rh3 loss in 1 half-moves