rn2k1n1/1b4p1/p1p2q2/bp1ppp1r/4P1PP/3B1P2/PPPPN1K1/RNB3R1 b q - 2 20
FEN state: rn2k1n1/1b4p1/p1p2q2/bp1ppp1r/4P1PP/3B1P2/PPPPN1K1/RNB3R1 b q - 2 20 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black knight at g8. Black bishop at b7 and black pawn at g7. Black pawn at a6, black pawn at c6 and black queen at f6. Black bishop at a5, black pawn at b5, black pawn at d5, black pawn at e5, black pawn at f5 and black rook at h5. White pawn at e4, white pawn at g4 and white pawn at h4. White bishop at d3 and white pawn at f3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2, white knight at e2 and white king at g2. White rook at a1, white knight at b1, white bishop at c1 and white rook at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 20. Black to move.