r4k1r/1p1n1pbp/p4n2/P1pp4/2PQp1p1/2N1P2b/RP3PPP/2B2KR1 w - - 0 21
FEN state: r4k1r/1p1n1pbp/p4n2/P1pp4/2PQp1p1/2N1P2b/RP3PPP/2B2KR1 w - - 0 21 ; Best move: d4d1
The current state of the chess board is: Black rook at a8, black king at f8 and black rook at h8. Black pawn at b7, black knight at d7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6 and black knight at f6. White pawn at a5, black pawn at c5 and black pawn at d5. White pawn at c4, white queen at d4, black pawn at e4 and black pawn at g4. White knight at c3, white pawn at e3 and black bishop at h3. White rook at a2, white pawn at b2, white pawn at f2, white pawn at g2 and white pawn at h2. White bishop at c1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.