rn2Qb1r/3qp3/1pppkn1p/p5p1/5P1P/P1P1P3/1PKP2P1/RNB2bNR w - - 0 23
FEN state: rn2Qb1r/3qp3/1pppkn1p/p5p1/5P1P/P1P1P3/1PKP2P1/RNB2bNR w - - 0 23 ; Best move: f4f5
The current state of the chess board is: Black rook at a8, black knight at b8, white queen at e8, black bishop at f8 and black rook at h8. Black queen at d7 and black pawn at e7. Black pawn at b6, black pawn at c6, black pawn at d6, black king at e6, black knight at f6 and black pawn at h6. Black pawn at a5 and black pawn at g5. White pawn at f4 and white pawn at h4. White pawn at a3, white pawn at c3 and white pawn at e3. White pawn at b2, white king at c2, white pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, black bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. White to move.