r1b2knr/pp1pbp2/B1p1p1pp/1P4PP/2P5/N3q3/PB1P1P2/R1n1NK1R b - - 3 21
FEN state: r1b2knr/pp1pbp2/B1p1p1pp/1P4PP/2P5/N3q3/PB1P1P2/R1n1NK1R b - - 3 21 ; Best move: e3e2
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black bishop at e7 and black pawn at f7. White bishop at a6, black pawn at c6, black pawn at e6, black pawn at g6 and black pawn at h6. White pawn at b5, white pawn at g5 and white pawn at h5. White pawn at c4. White knight at a3 and black queen at e3. White pawn at a2, white bishop at b2, white pawn at d2 and white pawn at f2. White rook at a1, black knight at c1, white knight at e1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.