rn1q1bnr/p1pkpppp/3p4/8/1pP1P1P1/5PKN/PP1PB2P/RNB2Q1R w - - 4 10
FEN state: rn1q1bnr/p1pkpppp/3p4/8/1pP1P1P1/5PKN/PP1PB2P/RNB2Q1R w - - 4 10 ; Best move: d2d4
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 c7, black king at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at d6. Black pawn at b4, white pawn at c4, white pawn at e4 and white pawn at g4. White pawn at f3, white king at g3 and white knight at h3. White pawn at a2, white pawn at b2, white pawn at d2, white bishop at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 10. White to move.