rnb1kbn1/1p2pppr/p1pq3p/3p4/P1P2P2/1P4PP/R2PP3/1NBQKBNR b q - 0 10
FEN state: rnb1kbn1/1p2pppr/p1pq3p/3p4/P1P2P2/1P4PP/R2PP3/1NBQKBNR b q - 0 10 ; Best move: d6g6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6, black pawn at c6, black queen at d6 and black pawn at h6. Black pawn at d5. White pawn at a4, white pawn at c4 and white pawn at f4. White pawn at b3, white pawn at g3 and white pawn at h3. White rook at a2, white pawn at d2 and white pawn at e2. White knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.