rn2k3/1ppbpp1r/1Q1P2p1/pN4Bp/4P1nP/qP3P2/P3N1P1/b2K1BR1 b q - 2 20
FEN state: rn2k3/1ppbpp1r/1Q1P2p1/pN4Bp/4P1nP/qP3P2/P3N1P1/b2K1BR1 b q - 2 20 ; Best move: d7b5
The current state of the chess board is: Black rook at a8, black knight at b8 and black king at e8. Black pawn at b7, black pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7 and black rook at h7. White queen at b6, white pawn at d6 and black pawn at g6. Black pawn at a5, white knight at b5, white bishop at g5 and black pawn at h5. White pawn at e4, black knight at g4 and white pawn at h4. Black queen at a3, white pawn at b3 and white pawn at f3. White pawn at a2, white knight at e2 and white pawn at g2. Black bishop at a1, white king at d1, white bishop at f1 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.