rn2k1nr/5pp1/p1pp2bp/2P1p1b1/1p1PN3/PP2PPPN/6B1/1RB1KQR1 w - - 2 21
FEN state: rn2k1nr/5pp1/p1pp2bp/2P1p1b1/1p1PN3/PP2PPPN/6B1/1RB1KQR1 w - - 2 21 ; Best move: f3f4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at f7 and black pawn at g7. Black pawn at a6, black pawn at c6, black pawn at d6, black bishop at g6 and black pawn at h6. White pawn at c5, black pawn at e5 and black bishop at g5. Black pawn at b4, white pawn at d4 and white knight at e4. White pawn at a3, white pawn at b3, white pawn at e3, white pawn at f3, white pawn at g3 and white knight at h3. White bishop at g2. White rook at b1, white bishop at c1, white king at e1, white queen at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.