2b2k2/1pq1p1br/r1pp1npp/3P1p2/pP1N1Q1P/2P3PR/1P2PP2/RNB1KB2 w Q - 0 18
FEN state: 2b2k2/1pq1p1br/r1pp1npp/3P1p2/pP1N1Q1P/2P3PR/1P2PP2/RNB1KB2 w Q - 0 18 ; Best move: d4e6
The current state of the chess board is: Black bishop at c8 and black king at f8. Black pawn at b7, black queen at c7, black pawn at e7, black bishop at g7 and black rook at h7. Black rook at a6, black pawn at c6, black pawn at d6, black knight at f6, black pawn at g6 and black pawn at h6. White pawn at d5 and black pawn at f5. Black pawn at a4, white pawn at b4, white knight at d4, white queen at f4 and white pawn at h4. White pawn at c3, white pawn at g3 and white rook at h3. White pawn at b2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.