r1b1qb1r/pppppkpp/2n4n/5p2/4P2P/2PB4/PP1P1PPR/RNBQK1N1 w Q - 3 6
FEN state: r1b1qb1r/pppppkpp/2n4n/5p2/4P2P/2PB4/PP1P1PPR/RNBQK1N1 w Q - 3 6 ; Best move: e4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black knight at c6 and black knight at h6. Black pawn at f5. White pawn at e4 and white pawn at h4. White pawn at c3 and white bishop at d3. White pawn at a2, white pawn at b2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 3. Full move number is 6. White to move.