2b1k1r1/p1p1bqpp/1r5n/1p2pp1P/2N1PP2/6PR/PPPP4/R1B1KB2 b Q - 0 15
FEN state: 2b1k1r1/p1p1bqpp/1r5n/1p2pp1P/2N1PP2/6PR/PPPP4/R1B1KB2 b Q - 0 15 ; Best move: b5c4
The current state of the chess board is: Black bishop at c8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at c7, black bishop at e7, black queen at f7, black pawn at g7 and black pawn at h7. Black rook at b6 and black knight at h6. Black pawn at b5, black pawn at e5, black pawn at f5 and white pawn at h5. White knight at c4, white pawn at e4 and white pawn at f4. White pawn at g3 and white rook at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at d2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.