r1b1k2r/1pp1qpbp/p1n1p1p1/3p1n2/3P3N/2P1P2P/PP1Q1PP1/R1BK1BNR w kq - 0 13
FEN state: r1b1k2r/1pp1qpbp/p1n1p1p1/3p1n2/3P3N/2P1P2P/PP1Q1PP1/R1BK1BNR w kq - 0 13 ; Best move: h4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at c7, black queen at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6, black knight at c6, black pawn at e6 and black pawn at g6. Black pawn at d5 and black knight at f5. White pawn at d4 and white knight at h4. White pawn at c3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at b2, white queen at d2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.