3r1bnr/p3p3/1qb2pkP/1p1p4/P2p3P/Q1P1B3/1P2P1PR/RN2KBN1 b Q - 0 18
FEN state: 3r1bnr/p3p3/1qb2pkP/1p1p4/P2p3P/Q1P1B3/1P2P1PR/RN2KBN1 b Q - 0 18 ; Best move: d4e3
The current state of the chess board is: Black rook at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at e7. Black queen at b6, black bishop at c6, black pawn at f6, black king at g6 and white pawn at h6. Black pawn at b5 and black pawn at d5. White pawn at a4, black pawn at d4 and white pawn at h4. White queen at a3, white pawn at c3 and white bishop at e3. White pawn at b2, white pawn at e2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.