rnb1kb2/1p1ppNn1/2r5/p1P5/4PPP1/1P5P/P1P1Q3/RN2K2R b q - 0 20
FEN state: rnb1kb2/1p1ppNn1/2r5/p1P5/4PPP1/1P5P/P1P1Q3/RN2K2R b q - 0 20 ; Best move: e8f7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at d7, black pawn at e7, white knight at f7 and black knight at g7. Black rook at c6. Black pawn at a5 and white pawn at c5. White pawn at e4, white pawn at f4 and white pawn at g4. White pawn at b3 and white pawn at h3. White pawn at a2, white pawn at c2 and white queen at e2. White rook at a1, white knight at b1, white king at e1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.