rn1k2nr/1bp5/1p1p2pP/p2NP2P/2qQ1p2/5P2/P1P1PK2/R4BNR w - - 0 21
FEN state: rn1k2nr/1bp5/1p1p2pP/p2NP2P/2qQ1p2/5P2/P1P1PK2/R4BNR w - - 0 21 ; Best move: d4c4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black knight at g8 and black rook at h8. Black bishop at b7 and black pawn at c7. Black pawn at b6, black pawn at d6, black pawn at g6 and white pawn at h6. Black pawn at a5, white knight at d5, white pawn at e5 and white pawn at h5. Black queen at c4, white queen at d4 and black pawn at f4. White pawn at f3. White pawn at a2, white pawn at c2, white pawn at e2 and white king at f2. White rook at a1, 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 21. White to move.