rnbq1k2/2ppb1pr/5p1n/pp2pP2/NP2P3/4K1pP/P1PP4/1RBQ1BNR b - - 0 13
FEN state: rnbq1k2/2ppb1pr/5p1n/pp2pP2/NP2P3/4K1pP/P1PP4/1RBQ1BNR b - - 0 13 ; Best move: d7d5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black king at f8. Black pawn at c7, black pawn at d7, black bishop at e7, black pawn at g7 and black rook at h7. Black pawn at f6 and black knight at h6. Black pawn at a5, black pawn at b5, black pawn at e5 and white pawn at f5. White knight at a4, white pawn at b4 and white pawn at e4. White king at e3, black pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at b1, white bishop at c1, white queen at d1, 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 13. Black to move.