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1
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Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Ra8 win in 3 half-moves
3 Ra1 draw
4 Ra4 draw
5 Ra5 draw
6 Ra6 draw
7 Rb2 draw
8 Re2 draw
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Kf7 loss in 2 half-moves
13 Kf8 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rg2 loss in 2 half-moves
19 Rh2 loss in 2 half-moves