rn1q1bnr/pp1bkpp1/8/4p1Np/NPpp1P1P/8/PBPPP1P1/R1Q1KB1R w KQ - 0 10
FEN state: rn1q1bnr/pp1bkpp1/8/4p1Np/NPpp1P1P/8/PBPPP1P1/R1Q1KB1R w KQ - 0 10 ; Best move: a4c5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at d7, black king at e7, black pawn at f7 and black pawn at g7. Black pawn at e5, white knight at g5 and black pawn at h5. White knight at a4, white pawn at b4, black pawn at c4, black pawn at d4, white pawn at f4 and white pawn at h4. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 10. White to move.