rn2kb2/p3p3/1qppb2n/6pp/1PpPP3/P4PP1/1NPK3P/R1B2QNR w q - 5 20
FEN state: rn2kb2/p3p3/1qppb2n/6pp/1PpPP3/P4PP1/1NPK3P/R1B2QNR w q - 5 20 ; Best move: c2c3
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black bishop at f8. Black pawn at a7 and black pawn at e7. Black queen at b6, black pawn at c6, black pawn at d6, black bishop at e6 and black knight at h6. Black pawn at g5 and black pawn at h5. White pawn at b4, black pawn at c4, white pawn at d4 and white pawn at e4. White pawn at a3, white pawn at f3 and white pawn at g3. White knight at b2, white pawn at c2, white king at d2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 20. White to move.