rn1q2k1/4p2r/1p2Nn1b/p1pp1pp1/3PP2p/1PP2P2/P4RPP/RNBQK3 w Q - 0 18
FEN state: rn1q2k1/4p2r/1p2Nn1b/p1pp1pp1/3PP2p/1PP2P2/P4RPP/RNBQK3 w Q - 0 18 ; Best move: e6d8
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black king at g8. Black pawn at e7 and black rook at h7. Black pawn at b6, white knight at e6, black knight at f6 and black bishop at h6. Black pawn at a5, black pawn at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at d4, white pawn at e4 and black pawn at h4. White pawn at b3, white pawn at c3 and white pawn at f3. White pawn at a2, white rook at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white king at e1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.