rn2k1n1/4q1p1/p1ppb3/1Nbr4/P2P1PP1/7P/1PP1P1BR/R1B1K1N1 w - - 1 21
FEN state: rn2k1n1/4q1p1/p1ppb3/1Nbr4/P2P1PP1/7P/1PP1P1BR/R1B1K1N1 w - - 1 21 ; Best move: e2e4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black knight at g8. Black queen at e7 and black pawn at g7. Black pawn at a6, black pawn at c6, black pawn at d6 and black bishop at e6. White knight at b5, black bishop at c5 and black rook at d5. White pawn at a4, white pawn at d4, white pawn at f4 and white pawn at g4. White pawn at h3. White pawn at b2, white pawn at c2, white pawn at e2, white bishop at g2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.