rnbq3r/pppp1kbp/7n/3P1p1P/P3p1p1/1PNNP1P1/R1PK1P2/3Q1BR1 b - - 0 21
FEN state: rnbq3r/pppp1kbp/7n/3P1p1P/P3p1p1/1PNNP1P1/R1PK1P2/3Q1BR1 b - - 0 21 ; Best move: e4d3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black king at f7, black bishop at g7 and black pawn at h7. Black knight at h6. White pawn at d5, black pawn at f5 and white pawn at h5. White pawn at a4, black pawn at e4 and black pawn at g4. White pawn at b3, white knight at c3, white knight at d3, white pawn at e3 and white pawn at g3. White rook at a2, white pawn at c2, white king at d2 and white pawn at f2. White queen at d1, 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. Black to move.