1rbqk1r1/pp1n1ppp/4pn2/3Q4/1bp5/2PPB1P1/PP2PP1P/RN2KBNR w KQ - 5 10
FEN state: 1rbqk1r1/pp1n1ppp/4pn2/3Q4/1bp5/2PPB1P1/PP2PP1P/RN2KBNR w KQ - 5 10 ; Best move: d5c4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black knight at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at e6 and black knight at f6. White queen at d5. Black bishop at b4 and black pawn at c4. White pawn at c3, white pawn at d3, white bishop at e3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 5. Full move number is 10. White to move.