rnb2bn1/p1p1qkpr/4pp2/1p1p3p/4P1PP/P1NB1P2/1PPP1K2/R1B1Q1NR w - - 1 10
FEN state: rnb2bn1/p1p1qkpr/4pp2/1p1p3p/4P1PP/P1NB1P2/1PPP1K2/R1B1Q1NR w - - 1 10 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7, black queen at e7, black king at f7, black pawn at g7 and black rook at h7. Black pawn at e6 and black pawn at f6. Black pawn at b5, black pawn at d5 and black pawn at h5. White pawn at e4, white pawn at g4 and white pawn at h4. White pawn at a3, white knight at c3, white bishop at d3 and white pawn at f3. White pawn at b2, white pawn at c2, white pawn at d2 and white king at f2. White rook at a1, white bishop at c1, white queen at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 10. White to move.