r1b4r/1p4kp/p1pp1p1b/q3p3/1P1NP1P1/4B2P/5P2/4KBR1 w - - 0 21
FEN state: r1b4r/1p4kp/p1pp1p1b/q3p3/1P1NP1P1/4B2P/5P2/4KBR1 w - - 0 21 ; Best move: d4f5
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at h8. Black pawn at b7, black king at g7 and black pawn at h7. Black pawn at a6, black pawn at c6, black pawn at d6, black pawn at f6 and black bishop at h6. Black queen at a5 and black pawn at e5. White pawn at b4, white knight at d4, white pawn at e4 and white pawn at g4. White bishop at e3 and white pawn at h3. White pawn at f2. White king at e1, white bishop 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.