r3b1nr/p3bp2/1pPkp2p/6Bq/PP2p3/2pB1N1P/2P2PP1/R2QK1R1 b Q - 0 23
FEN state: r3b1nr/p3bp2/1pPkp2p/6Bq/PP2p3/2pB1N1P/2P2PP1/R2QK1R1 b Q - 0 23 ; Best move: e7g5
The current state of the chess board is: Black rook at a8, black bishop at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at e7 and black pawn at f7. Black pawn at b6, white pawn at c6, black king at d6, black pawn at e6 and black pawn at h6. White bishop at g5 and black queen at h5. White pawn at a4, white pawn at b4 and black pawn at e4. Black pawn at c3, white bishop at d3, white knight at f3 and white pawn at h3. White pawn at c2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.