rnb1kr2/1ppp1pp1/p1n1pq2/7p/4PPP1/2P4P/PP1PK3/RNB2BNR w - - 0 10
FEN state: rnb1kr2/1ppp1pp1/p1n1pq2/7p/4PPP1/2P4P/PP1PK3/RNB2BNR w - - 0 10 ; Best move: d2d4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black pawn at a6, black knight at c6, black pawn at e6 and black queen at f6. Black pawn at h5. White pawn at e4, white pawn at f4 and white pawn at g4. White pawn at c3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at d2 and white king at e2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 10. White to move.