1rb1kbq1/pp1pp3/7p/2p1NPrP/P4Pn1/1P1P4/1BQPP2R/RN2KB2 w - - 9 20
FEN state: 1rb1kbq1/pp1pp3/7p/2p1NPrP/P4Pn1/1P1P4/1BQPP2R/RN2KB2 w - - 9 20 ; Best move: f4g5
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black queen at g8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at e7. Black pawn at h6. Black pawn at c5, white knight at e5, white pawn at f5, black rook at g5 and white pawn at h5. White pawn at a4, white pawn at f4 and black knight at g4. White pawn at b3 and white pawn at d3. White bishop at b2, white queen at c2, white pawn at d2, white pawn at e2 and white rook at h2. White rook at a1, white knight at b1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 9. Full move number is 20. White to move.