1r3k1r/pb2np1p/Bpp4b/P2pp3/1QP1qP2/7p/RP4PP/1NB2K1R w - - 0 20
FEN state: 1r3k1r/pb2np1p/Bpp4b/P2pp3/1QP1qP2/7p/RP4PP/1NB2K1R w - - 0 20 ; Best move: b2b3
The current state of the chess board is: Black rook at b8, black king at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black knight at e7, black pawn at f7 and black pawn at h7. White bishop at a6, black pawn at b6, black pawn at c6 and black bishop at h6. White pawn at a5, black pawn at d5 and black pawn at e5. White queen at b4, white pawn at c4, black queen at e4 and white pawn at f4. Black pawn at h3. White rook at a2, white pawn at b2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.