r2qk2r/2p4p/4p3/ppnpnpp1/3P1P2/NP2PQPN/P1PB2BP/1R1Kb2R w kq - 0 20
FEN state: r2qk2r/2p4p/4p3/ppnpnpp1/3P1P2/NP2PQPN/P1PB2BP/1R1Kb2R w kq - 0 20 ; Best move: f3h5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black rook at h8. Black pawn at c7 and black pawn at h7. Black pawn at e6. Black pawn at a5, black pawn at b5, black knight at c5, black pawn at d5, black knight at e5, black pawn at f5 and black pawn at g5. White pawn at d4 and white pawn at f4. White knight at a3, white pawn at b3, white pawn at e3, white queen at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at c2, white bishop at d2, white bishop at g2 and white pawn at h2. White rook at b1, white king at d1, black bishop at e1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 20. White to move.