1rq2rk1/1b2n1b1/2p1p1pp/pp1pPn1P/3P1P2/4QP2/PPP1B2R/RNB2KN1 b - - 1 21
FEN state: 1rq2rk1/1b2n1b1/2p1p1pp/pp1pPn1P/3P1P2/4QP2/PPP1B2R/RNB2KN1 b - - 1 21 ; Best move: f5e3
The current state of the chess board is: Black rook at b8, black queen at c8, black rook at f8 and black king at g8. Black bishop at b7, black knight at e7 and black bishop at g7. Black pawn at c6, black pawn at e6, black pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at b5, black pawn at d5, white pawn at e5, black knight at f5 and white pawn at h5. White pawn at d4 and white pawn at f4. White queen at e3 and white pawn at f3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at e2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.