rnb2b1r/pp6/2ppk3/P3ppN1/3PqP1P/BPP5/2Q1P2P/RN1K1B1R b - - 0 21
FEN state: rnb2b1r/pp6/2ppk3/P3ppN1/3PqP1P/BPP5/2Q1P2P/RN1K1B1R b - - 0 21 ; Best move: e6d7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7 and black pawn at b7. Black pawn at c6, black pawn at d6 and black king at e6. White pawn at a5, black pawn at e5, black pawn at f5 and white knight at g5. White pawn at d4, black queen at e4, white pawn at f4 and white pawn at h4. White bishop at a3, white pawn at b3 and white pawn at c3. White queen at c2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.