2rqk1nr/pb1p4/1pnbpp2/7P/1pP1Pp1P/P4K1N/3PR3/RNBQ1B2 w k - 3 20
FEN state: 2rqk1nr/pb1p4/1pnbpp2/7P/1pP1Pp1P/P4K1N/3PR3/RNBQ1B2 w k - 3 20 ; Best move: d2d4
The current state of the chess board is: Black rook at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7 and black pawn at d7. Black pawn at b6, black knight at c6, black bishop at d6, black pawn at e6 and black pawn at f6. White pawn at h5. Black pawn at b4, white pawn at c4, white pawn at e4, black pawn at f4 and white pawn at h4. White pawn at a3, white king at f3 and white knight at h3. White pawn at d2 and white rook at e2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 3. Full move number is 20. White to move.