1nbq4/2p1kpp1/r2ppn1r/ppb3BP/1PP1PPp1/N2P1R2/P1Q1N3/R3KB2 w Q - 0 20
FEN state: 1nbq4/2p1kpp1/r2ppn1r/ppb3BP/1PP1PPp1/N2P1R2/P1Q1N3/R3KB2 w Q - 0 20 ; Best move: b4c5
The current state of the chess board is: Black knight at b8, black bishop at c8 and black queen at d8. Black pawn at c7, black king at e7, black pawn at f7 and black pawn at g7. Black rook at a6, black pawn at d6, black pawn at e6, black knight at f6 and black rook at h6. Black pawn at a5, black pawn at b5, black bishop at c5, white bishop at g5 and white pawn at h5. White pawn at b4, white pawn at c4, white pawn at e4, white pawn at f4 and black pawn at g4. White knight at a3, white pawn at d3 and white rook at f3. White pawn at a2, white queen at c2 and white knight at e2. White rook at a1, 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 20. White to move.