rnb3nr/pp1kbp1p/3pp1p1/2p5/P1q2PP1/N3P2N/1P1P2RP/R1BQKB2 b Q - 4 12
FEN state: rnb3nr/pp1kbp1p/3pp1p1/2p5/P1q2PP1/N3P2N/1P1P2RP/R1BQKB2 b Q - 4 12 ; Best move: e7h4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black king at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at d6, black pawn at e6 and black pawn at g6. Black pawn at c5. White pawn at a4, black queen at c4, white pawn at f4 and white pawn at g4. White knight at a3, white pawn at e3 and white knight at h3. White pawn at b2, white pawn at d2, white rook at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 4. Full move number is 12. Black to move.