r2qk2r/p1pb1ppN/2n1pn2/1p6/1bP5/B1pP4/P3PPPP/R2QKBR1 w Qkq - 0 10
FEN state: r2qk2r/p1pb1ppN/2n1pn2/1p6/1bP5/B1pP4/P3PPPP/R2QKBR1 w Qkq - 0 10 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at d7, black pawn at f7, black pawn at g7 and white knight at h7. Black knight at c6, black pawn at e6 and black knight at f6. Black pawn at b5. Black bishop at b4 and white pawn at c4. White bishop at a3, black pawn at c3 and white pawn at d3. White pawn at a2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. White to move.