rn1q1bn1/p1p1p2r/bpkp1p2/6Bp/4N3/P2P2PP/1PP1PPR1/RN1QKB2 w Q - 4 12
FEN state: rn1q1bn1/p1p1p2r/bpkp1p2/6Bp/4N3/P2P2PP/1PP1PPR1/RN1QKB2 w Q - 4 12 ; Best move: g5h4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7, black pawn at e7 and black rook at h7. Black bishop at a6, black pawn at b6, black king at c6, black pawn at d6 and black pawn at f6. White bishop at g5 and black pawn at h5. White knight at e4. White pawn at a3, white pawn at d3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2 and white rook at g2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 4. Full move number is 12. White to move.