rnb1kb2/p4p2/1p1p4/2p1pPp1/7p/PPNBr1P1/1B1P3P/RNQK3R b q - 1 21
FEN state: rnb1kb2/p4p2/1p1p4/2p1pPp1/7p/PPNBr1P1/1B1P3P/RNQK3R b q - 1 21 ; Best move: e3d3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7 and black pawn at f7. Black pawn at b6 and black pawn at d6. Black pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. Black pawn at h4. White pawn at a3, white pawn at b3, white knight at c3, white bishop at d3, black rook at e3 and white pawn at g3. White bishop at b2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white queen at c1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 21. Black to move.