1rb2b1r/1p1n2kp/3p3n/2p1pP2/2qPNPp1/P1PQ4/1P1B2PP/RN2KB1R w KQ - 5 21
FEN state: 1rb2b1r/1p1n2kp/3p3n/2p1pP2/2qPNPp1/P1PQ4/1P1B2PP/RN2KB1R w KQ - 5 21 ; Best move: d3c4
The current state of the chess board is: Black rook at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at b7, black knight at d7, black king at g7 and black pawn at h7. Black pawn at d6 and black knight at h6. Black pawn at c5, black pawn at e5 and white pawn at f5. Black queen at c4, white pawn at d4, white knight at e4, white pawn at f4 and black pawn at g4. White pawn at a3, white pawn at c3 and white queen at d3. White pawn at b2, white bishop at d2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 5. Full move number is 21. White to move.