r1b1kb1r/p1p3pp/2npp2n/1Q6/2P3PP/P4NqB/1P1P1P2/R1B1K2R b K - 8 20
FEN state: r1b1kb1r/p1p3pp/2npp2n/1Q6/2P3PP/P4NqB/1P1P1P2/R1B1K2R b K - 8 20 ; Best move: g3f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at g7 and black pawn at h7. Black knight at c6, black pawn at d6, black pawn at e6 and black knight at h6. White queen at b5. White pawn at c4, white pawn at g4 and white pawn at h4. White pawn at a3, white knight at f3, black queen at g3 and white bishop at h3. White pawn at b2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 8. Full move number is 20. Black to move.