8
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2
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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 8 half-moves

# move score
1 Ra8 win in 7 half-moves
2 Rh8 win in 7 half-moves
3 Ra1 win in 9 half-moves
4 Ra2 win in 9 half-moves
5 Ra3 win in 9 half-moves
6 Rh1 win in 9 half-moves
7 Rh2 win in 9 half-moves
8 Rh3 win in 9 half-moves
9 Rab4 loss in 4 half-moves
10 Rac4 loss in 4 half-moves
11 Rad4 loss in 4 half-moves
12 Rhb4 loss in 4 half-moves
13 Rhc4 loss in 4 half-moves
14 Rhd4 loss in 4 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rae4 loss in 2 half-moves
19 Raf4 loss in 2 half-moves
20 Rag4 loss in 2 half-moves
21 Rh5 loss in 2 half-moves
22 Rh6 loss in 2 half-moves
23 Rh7 loss in 2 half-moves
24 Rhe4 loss in 2 half-moves
25 Rhf4 loss in 2 half-moves
26 Rhg4 loss in 2 half-moves