5b1r/rb2kp1p/np2q3/p1p3pn/1PN1p1PP/2PPPN2/P4P2/R1BK1B1R w - - 0 20
FEN state: 5b1r/rb2kp1p/np2q3/p1p3pn/1PN1p1PP/2PPPN2/P4P2/R1BK1B1R w - - 0 20 ; Best move: f3e5
The current state of the chess board is: Black bishop at f8 and black rook at h8. Black rook at a7, black bishop at b7, black king at e7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at b6 and black queen at e6. Black pawn at a5, black pawn at c5, black pawn at g5 and black knight at h5. White pawn at b4, white knight at c4, black pawn at e4, white pawn at g4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at e3 and white knight at f3. White pawn at a2 and white pawn at f2. White rook at a1, white bishop at c1, white king at d1, white bishop 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.