r4b2/pp1bkppr/3p1n2/4P3/2P1P3/NP4R1/3KBqP1/R1BQ2N1 w - - 2 21
FEN state: r4b2/pp1bkppr/3p1n2/4P3/2P1P3/NP4R1/3KBqP1/R1BQ2N1 w - - 2 21 ; Best move: e5f6
The current state of the chess board is: Black rook at a8 and black bishop at f8. Black pawn at a7, black pawn at b7, black bishop at d7, black king at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at d6 and black knight at f6. White pawn at e5. White pawn at c4 and white pawn at e4. White knight at a3, white pawn at b3 and white rook at g3. White king at d2, white bishop at e2, black queen at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.