rq2kb1r/1b1pn3/1p5p/4p1N1/1pPnPpP1/P4P2/3PQK1P/RBB1R3 b q - 1 20
FEN state: rq2kb1r/1b1pn3/1p5p/4p1N1/1pPnPpP1/P4P2/3PQK1P/RBB1R3 b q - 1 20 ; Best move: d4e2
The current state of the chess board is: Black rook at a8, black queen at b8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at b7, black pawn at d7 and black knight at e7. Black pawn at b6 and black pawn at h6. Black pawn at e5 and white knight at g5. Black pawn at b4, white pawn at c4, black knight at d4, white pawn at e4, black pawn at f4 and white pawn at g4. White pawn at a3 and white pawn at f3. White pawn at d2, white queen at e2, white king at f2 and white pawn at h2. White rook at a1, white bishop at b1, white bishop at c1 and white rook at e1. Black queenside is the only castle move available. Half move number is 1. Full move number is 20. Black to move.