r1bqkb1r/1p1p3p/p3p1p1/2p2p2/1n2nP2/3P1NP1/P1PNB2P/R1BQK2R w KQkq - 0 13
FEN state: r1bqkb1r/1p1p3p/p3p1p1/2p2p2/1n2nP2/3P1NP1/P1PNB2P/R1BQK2R w KQkq - 0 13 ; Best move: d3e4
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 h8. Black pawn at b7, black pawn at d7 and black pawn at h7. Black pawn at a6, black pawn at e6 and black pawn at g6. Black pawn at c5 and black pawn at f5. Black knight at b4, black knight at e4 and white pawn at f4. White pawn at d3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at c2, white knight at d2, white bishop at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.