r1b2k1r/2ppn3/pp2p3/1PnN2pp/3b2B1/6Q1/PBPP1PPP/RN2K1R1 w - - 0 20
FEN state: r1b2k1r/2ppn3/pp2p3/1PnN2pp/3b2B1/6Q1/PBPP1PPP/RN2K1R1 w - - 0 20 ; Best move: b2d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8 and black rook at h8. Black pawn at c7, black pawn at d7 and black knight at e7. Black pawn at a6, black pawn at b6 and black pawn at e6. White pawn at b5, black knight at c5, white knight at d5, black pawn at g5 and black pawn at h5. Black bishop at d4 and white bishop at g4. White queen at g3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.