1nb2b1r/rppn2qp/2kp4/2Pp1p2/1p3p1P/P1Q1B1R1/4P1P1/RN1K1B2 w - - 1 20
FEN state: 1nb2b1r/rppn2qp/2kp4/2Pp1p2/1p3p1P/P1Q1B1R1/4P1P1/RN1K1B2 w - - 1 20 ; Best move: a3b4
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at c7, black knight at d7, black queen at g7 and black pawn at h7. Black king at c6 and black pawn at d6. White pawn at c5, black pawn at d5 and black pawn at f5. Black pawn at b4, black pawn at f4 and white pawn at h4. White pawn at a3, white queen at c3, white bishop at e3 and white rook at g3. White pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white king at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.