r1bq1b1r/p1ppk1pp/4p2n/1p5B/P2nPpPP/8/1PPPQP2/RNB1K1NR w Q - 0 10
FEN state: r1bq1b1r/p1ppk1pp/4p2n/1p5B/P2nPpPP/8/1PPPQP2/RNB1K1NR w Q - 0 10 ; Best move: e2d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black king at e7, black pawn at g7 and black pawn at h7. Black pawn at e6 and black knight at h6. Black pawn at b5 and white bishop at h5. White pawn at a4, black knight at d4, white pawn at e4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b2, white pawn at c2, white pawn at d2, white queen at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 10. White to move.