r1bqkbr1/p1ppp1p1/1p3p2/1N1n4/2P1nP1p/1P1P3N/P1Q1P1PP/R1B1KBR1 w Qq - 0 13
FEN state: r1bqkbr1/p1ppp1p1/1p3p2/1N1n4/2P1nP1p/1P1P3N/P1Q1P1PP/R1B1KBR1 w Qq - 0 13 ; Best move: c4d5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at e7 and black pawn at g7. Black pawn at b6 and black pawn at f6. White knight at b5 and black knight at d5. White pawn at c4, black knight at e4, white pawn at f4 and black pawn at h4. White pawn at b3, white pawn at d3 and white knight at h3. White pawn at a2, white queen at c2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. White queenside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.